CN112114210B - Product electromagnetic compatibility test system - Google Patents
Product electromagnetic compatibility test system Download PDFInfo
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- CN112114210B CN112114210B CN202010808683.9A CN202010808683A CN112114210B CN 112114210 B CN112114210 B CN 112114210B CN 202010808683 A CN202010808683 A CN 202010808683A CN 112114210 B CN112114210 B CN 112114210B
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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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Abstract
The application relates to a product electromagnetic compatibility testing system, which relates to the field of electromagnetic compatibility testing and comprises a shielding darkroom, a testing table arranged in the shielding darkroom, an antenna device arranged in the shielding darkroom, a base, a vertical rod arranged on the base, a lifting seat sleeved on the outer side of the vertical rod in a sliding manner, a lifting assembly arranged at the vertical rod and used for driving the lifting seat to lift, a hinge mechanism connected with the lifting seat, a connecting rod piece connected with the hinge mechanism and an antenna main body connected with the connecting rod piece. The application can adjust the height of the antenna main body so as to adapt to detection of different products.
Description
Technical Field
The application relates to the field of electromagnetic compatibility testing, in particular to a product electromagnetic compatibility testing system.
Background
Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate satisfactorily in its electromagnetic environment and not to create intolerable electromagnetic disturbances to any device in its environment. EMC includes two requirements: on the one hand, electromagnetic disturbance generated by equipment on the environment in the normal operation process cannot exceed a certain limit value; on the other hand, the device has a certain degree of immunity, namely electromagnetic sensitivity, to electromagnetic disturbance existing in the environment.
The prior electromagnetic compatibility testing system comprises a shielding darkroom, a testing device and a testing table, wherein a part of the testing device and the testing table are all arranged in the shielding darkroom, the testing device comprises a bracket arranged in the shielding darkroom, an antenna tower arranged on the bracket and a receiver arranged outside the shielding darkroom, the receiver is used for collecting and analyzing received radiation signals, and a relation between signal transmission and reception is formed between the antenna tower and the receiver.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: because different types of products need to be tested, the height of the antenna tower needs to be adjusted, and the existing antenna tower is fixed in height, so that the practicability is lower.
Disclosure of Invention
In order to enable the antenna main body to adapt to different kinds of product detection, the application provides a product electromagnetic compatibility testing system.
The application provides a product electromagnetic compatibility testing system, which adopts the following technical scheme:
the utility model provides a product electromagnetic compatibility test system, including shielding darkroom and set up in the testboard in the shielding darkroom, still including set up in antenna device in the shielding darkroom, antenna device includes the base, sets up pole setting on the base, the lift seat in the pole setting outside is located to the slip cap, set up in pole setting department and be used for driving the lift subassembly that the lift seat goes up and down, connect in the articulated mechanism of lift seat, with the connecting rod piece of articulated mechanism connection and connect the antenna main part on the connecting rod piece.
Through adopting above-mentioned technical scheme, place the product that awaits measuring on the testboard, the antenna main part detects the radiation that awaits measuring the product and send to the electromagnetic harassment of test product awaits measuring, when testing different types of products, through the height of the regulation lift seat that the lift subassembly corresponds, thereby adjust the height of antenna main part, with the detection of the different types of products of adaptation, the shielding darkroom can be isolated external radiation, thereby provide comparatively stable environment to antenna device and product that awaits measuring, reduce the influence of external radiation to the test result.
Preferably, the pole setting is vertical setting, the lifting assembly including set up in servo motor on the base, key connect in servo motor output's driving gear, rotate connect in driven gear at pole setting top and be used for connecting driving gear and driven gear's internal tooth belt, the driving gear is located pole setting bottom, the internal tooth belt respectively with driving gear and driven gear meshing, drive gear and driven gear are transmitted through the internal tooth belt between, the lifting seat is inboard of internal tooth belt, the both sides that the lifting seat is relative are provided with sliding seat and fixing base respectively, the internal tooth belt slides and wears to locate the sliding seat, the internal tooth belt is fixed wears to locate the fixing base.
By adopting the technical scheme, the servo motor is started, the output end of the servo motor drives the driving gear to rotate, so that the driving gear drives the internal tooth belt to move to drive the fixed seat to move, and the lifting seat is driven to move, and when the lifting seat moves, the internal tooth belt can slide relatively with the sliding seat; the lifting assembly can adjust the height of the lifting seat, and can correspondingly adjust the height of the antenna main body, so that the antenna main body can test products with different heights or can test parts of the products with different heights, thereby improving the practicability of the antenna.
Preferably, the sliding seat comprises an inner fixing plate vertically arranged on the outer side of the lifting seat, two groups of middle connecting plates vertically arranged on one side of the inner fixing plate away from the lifting seat, an outer fixing plate vertically arranged on the end part of the middle connecting plate away from the inner fixing plate, and two groups of outer connecting plates vertically arranged between the outer fixing plates, the side surface of the middle connecting plate is perpendicular to the side surface of the inner fixing plate, the side surface of the outer connecting plate is perpendicular to the side surface of the inner fixing plate, an inner gear and two groups of pressing wheels horizontally rotate between the outer connecting plates, the inner gear is positioned on the inner side of an inner gear belt, the pressing wheels are positioned on the outer side of the inner gear belt, the two pressing wheels are respectively positioned above and below the inner gear, the inner gear is meshed with the inner gear belt, and the pressing wheels are in rolling connection with the outer side of the inner gear belt.
Through adopting above-mentioned technical scheme, when the lifting seat goes up and down, the internal tooth belt can drive internal gear and two sets of pinch rollers and rotate to make internal tooth belt can produce relative motion with internal gear and pinch rollers respectively, through setting up the internal gear, can reduce the friction between internal tooth belt and the sliding seat, can also improve simultaneously internal tooth belt and lifting seat's connection stability, make internal tooth belt can be stable go up and down the lifting seat, the setting of pinch roller can compress tightly the internal tooth belt of internal gear department, make internal gear can be more stable with internal tooth belt meshing, further improve internal tooth belt and sliding seat's connection stability.
Preferably, the hinge mechanism comprises an inner hinge seat, an outer hinge seat and an adjusting component, wherein the inner hinge seat is connected with the end part of the inner fixing plate and the end part of the outer fixing plate, the outer hinge seat is hinged with the inner hinge seat, the adjusting component is used for adjusting the angle between the inner hinge seat and the outer hinge seat, the outer hinge seat is hinged with the inner hinge seat through a hinge rod, and the connecting rod piece is connected to the outer hinge seat at a position far away from the inner hinge seat.
Through adopting above-mentioned technical scheme, adjust through the angle between outer articulated seat of adjusting part and the interior articulated seat to adjust the gradient of connecting rod spare, thereby adjust antenna main body's pitch angle, through adjusting antenna main body's pitch angle, improve antenna main body's detection range, further improve its practicality.
Preferably, the waist-shaped hole is horizontally arranged on the inner hinge seat, the length direction of the waist-shaped hole is parallel to the length direction of the inner hinge seat, the adjusting component comprises a sliding block which is connected in the inner hinge seat, sliding rods which are arranged at two opposite ends of the sliding block in the waist-shaped hole in a sliding mode, screw threads which are arranged on the same group of screw rods of the middle connecting plate in a penetrating mode and connecting rods which are arranged between the sliding rods and the outer hinge seat in a penetrating mode, the sliding direction of the sliding block is parallel to the length direction of the waist-shaped hole, the length direction of the screw rods is parallel to the length direction of the waist-shaped hole, one end of the screw rod is arranged in the sliding block in a penetrating mode and is connected with the sliding block in a rotating mode, two ends of the connecting rods are hinged to the sliding rods and the outer hinge seat respectively, and the length direction of the connecting rods is always perpendicular to the length direction of the hinge rods.
By adopting the technical scheme, the corresponding rotating screw rod can push the sliding block to move along the length direction of the inner hinging seat, so that the sliding rod can push the connecting rod to move, the inclination angle of the connecting rod is adjusted, and the angle of the outer hinging seat is adjusted; when the pitch angle of the antenna main body needs to be regulated up, the corresponding rotating screw rod pushes the sliding block to be close to the middle connecting plate, so that the pitch angle of the antenna main body is regulated up, and when the pitch angle of the antenna main body needs to be regulated down, the corresponding rotating screw rod pushes the sliding block to be far away from the middle connecting plate, so that the pitch angle of the antenna main body is regulated down.
Preferably, a stabilizing component is arranged between the lifting seat and the outer hinge seat, the stabilizing component comprises an inner hinge strip hinged to one side of the lifting seat, an outer hinge strip hinged to the outer hinge seat and corresponding to the inner hinge strip, and an adjusting bolt and an adjusting nut for fixing the inner hinge strip and the outer hinge strip, the outer hinge strip is provided with an outer strip-shaped hole, the length direction of the outer strip-shaped hole is parallel to the length direction of the outer hinge strip, the inner hinge strip is provided with an inner strip-shaped hole corresponding to the outer strip-shaped hole, the adjusting bolt slides to penetrate through the inner strip-shaped hole and the outer strip-shaped hole, and the adjusting nut is in threaded connection with the adjusting bolt.
Through adopting above-mentioned technical scheme, when adjusting the angle of outer articulated seat, can relative slip and relative rotation between interior articulated strip and the outer articulated strip to make adjusting bolt can slide in outer bar hole and interior bar hole, after the angle modulation of outer articulated seat finishes, screw up adjusting nut, make adjusting bolt and adjusting nut fix outer articulated strip and interior articulated strip, can further fix outer articulated seat.
Preferably, the connecting rod piece include the level set up in the inner connection frame that the inner hinge seat was kept away from to outer hinge seat and slip wear to locate outer connection frame in the inner connection frame, the inner connection frame is stretched out to the one end that the inner connection frame was kept away from to outer connection frame, antenna main part sets up in outer connection frame, the inner connection frame is the cavity setting, the one end that the outer hinge seat was kept away from to inner connection frame is the opening setting, be provided with the connecting piece between inner connection frame and the outer connection frame, fix through the connecting piece between inner connection frame and the outer connection frame.
Through adopting above-mentioned technical scheme, promote outer connecting frame, outer connecting frame can be in the interior connecting frame internal sliding, then fix outer connecting frame through the connecting piece to can adjust the distance between antenna main part and the product that awaits measuring, improve antenna main part's detection range, further improve its practicality.
Preferably, the locating hole has been vertically seted up at interior connection frame top, locating hole and the inside intercommunication of interior connection frame, a plurality of through-holes have been vertically seted up at outer connection frame top, and a plurality of the through-hole is arranged in the length direction of outer connection frame, the connecting piece is the inserted bar, the inserted bar is pegged graft in the through-hole of locating hole and corresponding position.
Through adopting above-mentioned technical scheme, slide outer connecting frame, make outer connecting frame slide in the inner connecting frame, when needs are fixed to outer connecting frame, align the through-hole with locating hole and corresponding position, then insert the inserted bar in locating hole and the through-hole of corresponding position to outer connecting frame is fixed.
Preferably, the lifting seat horizontally rotates to be provided with a plurality of pulleys, the outer sides of the pulleys are attached to the outer sides of the vertical rods, and the pulleys are in rolling connection with the vertical rods.
Through adopting above-mentioned technical scheme, when the elevating seat goes up and down, the pulley can roll along the vertical direction in the pole setting outside, can reduce the friction between elevating seat and the pole setting.
Preferably, a reinforcing seat is arranged at the bottom of the outer side of the vertical rod, the reinforcing seat is positioned below the inner hinging seat, and the bottom of the reinforcing seat is connected with the top of the base.
Through adopting above-mentioned technical scheme, through setting up the reinforcement seat between pole setting and base, can improve the connection stability between pole setting and the base.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the method comprises the steps that a product to be tested is placed on a test bench, radiation emitted by the product to be tested is detected by an antenna main body, so that electromagnetic disturbance of the product to be tested is tested, when different types of products are tested, the height of the antenna main body is adjusted through adjusting the height of a lifting seat corresponding to a lifting assembly, so that detection of the different types of products is adapted, external radiation can be isolated by a shielding darkroom, a stable environment is provided for an antenna device and the product to be tested, and the influence of external radiation on a test result is reduced;
2. the angle between the outer hinging seat and the inner hinging seat is adjusted through the adjusting component so as to adjust the inclination of the connecting rod piece, thereby adjusting the pitch angle of the antenna main body, and the detection range of the antenna main body is improved and the practicability is further improved through adjusting the pitch angle of the antenna main body;
3. the outer connecting frame is pushed, the outer connecting frame can slide in the inner connecting frame, and then the outer connecting frame is fixed through the connecting piece, so that the distance between the antenna main body and a product to be detected can be adjusted, the detection range of the antenna main body is improved, and the practicability of the antenna main body is further improved.
Drawings
FIG. 1 is a schematic diagram of a product electromagnetic compatibility testing system;
FIG. 2 is a schematic diagram of an antenna arrangement of a product electromagnetic compatibility testing system;
FIG. 3 is a schematic diagram of a lift base and a slide base of a product electromagnetic compatibility test system;
fig. 4 is a schematic diagram of the articulating mechanism of the electromagnetic compatibility testing system of the product.
Reference numerals illustrate: 1. shielding a darkroom; 2. a test bench; 3. a base; 4. a vertical rod; 5. a lifting seat; 6. a connecting rod piece; 7. an antenna main body; 8. a connecting seat; 9. a servo motor; 10. a drive gear; 11. a driven gear; 12. an internal toothed belt; 13. a fixing seat; 14. a pulley; 15. an inner fixing plate; 16. a middle connecting plate; 17. an outer fixing plate; 18. an outer connecting plate; 19. an internal gear; 20. a pinch roller; 21. an inner hinge seat; 22. an outer hinge base; 23. a hinge rod; 24. waist-shaped holes; 25. a slide block; 26. a slide bar; 27. a screw rod; 28. a connecting rod; 29. an inner hinge strip; 30. an outer hinge strip; 31. an inner bar-shaped hole; 32. an outer strip-shaped hole; 33. an adjusting bolt; 34. an adjusting nut; 35. an inner connecting frame; 36. an outer connection frame; 37. positioning holes; 38. a through hole; 39. a rod; 40. and (5) reinforcing the seat.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a product electromagnetic compatibility testing system. Referring to fig. 1, the antenna device comprises a shielding darkroom 1, an antenna device and a test board 2, wherein the antenna device and the test board 2 are arranged in the shielding darkroom 1.
Referring to fig. 1 and 2, the antenna device includes base 3, pole setting 4, lifting seat 5 and lifting assembly, and base 3 is the level setting, and pole setting 4 is vertical to be fixed in on the base 3, and lifting assembly connects between base 3 and pole setting 4, and lifting seat 5 slip cap locates the pole setting 4 outside, and lifting assembly can go up and down lifting seat 5. The antenna device further comprises a hinge mechanism, a connecting rod piece 6 and an antenna main body 7, wherein the hinge mechanism is connected with the lifting seat 5, the connecting rod piece 6 is connected to a position, away from the lifting seat 5, of the hinge mechanism, the antenna main body 7 is connected to a position, away from the hinge mechanism, of the connecting rod piece 6, and the antenna main body 7 faces the test board 2.
A receiver (not shown) is arranged outside the shielding darkroom 1, the receiver is used for collecting and analyzing received radiation signals, and a signal transmission and reception relationship exists between the antenna main body 7 and the receiver. The product to be tested is placed on the test bench 2, the antenna main body 7 detects the radiation emitted by the product to be tested, and the radiation signals are transmitted to the receiver, and the receiver collects and analyzes the received radiation signals.
Referring to fig. 2, a connecting seat 8 is fixed at a middle position of a top surface of a base 3, a vertical rod 4 is vertically fixed on the connecting seat 8, a lifting assembly comprises a servo motor 9, a driving gear 10, a driven gear 11 and an internal tooth belt 12, the servo motor 9 is horizontally fixed at a position of the top surface of the base 3 corresponding to the connecting seat 8, the driving gear 10 is connected to an output end of the servo motor 9 in a key manner, the driving gear 10 is positioned in the connecting seat 8, the driven gear 11 horizontally rotates at the top of the vertical rod 4, an axle direction of the driving gear 10 is parallel to an axle direction of the driven gear 11, the internal tooth belt 12 is connected between the driving gear 10 and the driven gear 11, the internal tooth belt 12 is respectively meshed with the driving gear 10 and the driven gear 11, and the driving gear 10 and the driven gear 11 are driven through the internal tooth belt 12. The cross section of pole setting 4 is square, and lifting seat 5 slip cap locates the pole setting 4 outside, and lifting seat 5 is located the internal tooth belt 12 inboard, and lifting seat 5 relative both sides are fixed with a set of sliding seat and two sets of fixing base 13 respectively, and the sliding seat is worn to locate in the corresponding position slip of internal tooth belt 12, and the fixed wearing of corresponding position of internal tooth belt 12 locates in two sets of fixing bases 13.
Starting a servo motor 9, wherein the output end of the servo motor 9 drives a driving gear 10 to rotate, so that the driving gear 10 drives an internal tooth belt 12 to move so as to drive a fixed seat 13 to move, and the lifting seat 5 can move up and down along with the movement of the fixed seat 13; in addition, when the lifting seat 5 moves up and down, the internal tooth belt 12 and the sliding seat can slide relatively. When the product with larger volume or the higher part of the product is required to be detected, the height of the antenna main body 7 is adapted to the height of the product to be detected by correspondingly adjusting the height of the lifting seat 5 through the lifting assembly.
In order to reduce friction between the lifting seat 5 and the upright 4, the position of the lifting seat 5 corresponding to the outer side of the upright 4 horizontally rotates to form a plurality of pulleys 14, the peripheral surfaces of the pulleys 14 are attached to the corresponding position of the outer side of the upright 4, and when the lifting seat 5 is lifted, the pulleys 14 can roll along the length direction of the upright 4.
Referring to fig. 3, the sliding seat comprises an inner fixing plate 15, two groups of middle connecting plates 16, two groups of outer fixing plates 17 and two groups of outer connecting plates 18, wherein the inner fixing plate 15 is vertically fixed at the middle position of one side of the lifting seat 5 far away from the fixing seat 13, and the opposite surfaces of the inner fixing plate 15 and the lifting seat 5 are mutually attached; the two groups of middle connecting plates 16 are vertically fixed on one side of the inner fixing plate 15, which is far away from the lifting seat 5, the side surfaces of the middle connecting plates 16 are vertical to the side surfaces of the inner fixing plate 15, and the two groups of middle connecting plates 16 are respectively positioned at the positions, close to the two opposite end parts, of the side surfaces of the inner fixing plate 15; the two groups of outer fixing plates 17 are vertically fixed at the ends of the two groups of middle connecting plates 16, which are far away from the inner fixing plate 15, respectively, and the side surfaces of the outer fixing plates 17 are parallel to the side surfaces of the inner fixing plates 15; the two sets of outer connecting plates 18 are vertically fixed at the opposite ends of the two sets of outer fixing plates 17 respectively, and the side surfaces of the outer connecting plates 18 are parallel to the side surfaces of the middle connecting plates 16. A group of internal gears 19 and two groups of pinch rollers 20 are horizontally rotated between the two groups of outer connecting plates 18, the internal gears 19 are positioned between the two groups of pinch rollers 20, one group of pinch rollers 20 is positioned above the internal gears 19, the other group of pinch rollers 20 is positioned below the internal gears 19, the internal gears 19 are positioned on the inner sides of the internal gear belts 12, the pinch rollers 20 are positioned on the outer sides of the internal gear belts 12, and the wheel axle direction of the internal gears 19 is parallel to the wheel axle direction of the pinch rollers 20; a gap is reserved between the inner gear 19 and the pinch roller 20, the gap is used for the inner gear belt 12 to pass through, the inner gear 19 is meshed with the inner side of the inner gear belt 12, the outer circumferential surface of the pinch roller 20 is in rolling connection with the corresponding position of the outer side of the inner gear belt 12, and the pinch roller 20 can abut against the outer side of the inner gear belt 12 with a certain force.
When the lifting seat 5 moves, the internal gear 19 can be meshed with different positions on the inner side of the internal gear belt 12, and when the internal gear belt 12 moves, the internal gear belt 12 can drive the internal gear 19 and the two groups of pressing wheels 20 to rotate, so that the internal gear belt 12 can respectively generate relative movement with the internal gear 19 and the pressing wheels 20; by providing the internal gear 19, friction between the internal gear belt 12 and the sliding seat can be reduced, and in addition, the pinch roller 20 can pinch the portion of the internal gear belt 12 connected with the internal gear 19, so that the internal gear 19 is tightly meshed with the internal gear belt 12, and the lifting seat 5 is uniformly stressed.
Referring to fig. 4, the hinge mechanism includes an inner hinge seat 21, an outer hinge seat 22, and an adjusting component, the inner hinge seat 21 is fixed on the outer side of the sliding seat, the outer hinge seat 22 is hinged at a position where the inner hinge seat 21 is far away from the sliding seat, the outer hinge seat 22 is hinged with the inner hinge seat 21 through a hinge rod 23, the hinge rod 23 is horizontally arranged, the adjusting component is arranged between the inner hinge seat 21 and the outer hinge seat 22, the adjusting component can adjust an angle between the inner hinge seat 21 and the outer hinge seat 22, and a connecting rod piece 6 (refer to fig. 2) is fixed at a position where the outer hinge seat 22 is far away from the inner hinge seat 21.
The inner hinge seat 21 is a horizontally arranged strip object, one section of the inner hinge seat 21 is horizontally fixed at the corresponding position of the end part of the inner fixing plate 15, the other section of the inner hinge seat 21 is horizontally fixed at the corresponding position of the end part of the outer fixing plate 17, the hinge rod 23 is fixed between the two sections of the inner hinge seats 21, and a sliding space is reserved between the two sections of the inner hinge seats 21; waist-shaped holes 24 are horizontally formed in the side surfaces of the two sections of inner hinge seats 21, the waist-shaped holes 24 penetrate through two opposite side surfaces of the inner hinge seats 21, and the length direction of the waist-shaped holes 24 is parallel to the length direction of the inner hinge seats 21.
The adjusting component comprises a sliding block 25, two groups of sliding rods 26 and a screw rod 27, wherein the sliding block 25 is in sliding connection between the two sections of inner hinging seats 21, two opposite side surfaces of the sliding block 25 are respectively attached to the opposite surfaces of the two sections of inner hinging seats 21, the two groups of sliding rods 26 are respectively and horizontally fixed on the two opposite side surfaces of the sliding block 25, the diameter of each sliding rod 26 is smaller than the distance between the two opposite side walls of the corresponding kidney-shaped hole 24, the sliding rods 26 are arranged in the corresponding kidney-shaped holes 24 in a sliding manner, and the length direction of each sliding rod 26 is perpendicular to the length direction of each kidney-shaped hole 24; the lead screw 27 is horizontally arranged at the middle connecting plate 16, the lead screw 27 penetrates through two opposite sides of the two groups of middle connecting plates 16, the lead screw 27 is in threaded connection with the middle connecting plates 16, and one end, close to the inner hinging seat 21, of the lead screw 27 penetrates through the sliding block 25 and is in rotary connection with the sliding block 25. The screw rod 27 is rotated, and the screw rod 27 can drive the sliding block 25 to slide in the inner hinging seat 21, and the sliding block 25 can move along the length direction of the inner hinging seat 21. The adjusting assembly further comprises two groups of connecting rods 28, the connecting rods 28 are arranged between the inner hinging seat 21 and the outer hinging seat 22, the two groups of connecting rods 28 are respectively hinged at the two groups of sliding rods 26, one end, away from the sliding rods 26, of each connecting rod 28 is hinged with the corresponding position of the outer hinging seat 22, and the hinged position between the connecting rods 28 and the outer hinging seat 22 is located above the hinging rod 23. After the position of the corresponding adjusting slide block 25, the slide bar 26 can push the connecting rod 28 to move so as to adjust the inclination degree of the connecting rod 28, and the angle between the outer hinging seat 22 and the inner hinging seat 21 can be adjusted so as to adjust the pitch angle of the antenna main body 7, thereby improving the detection range of the antenna main body 7 and further improving the practicability of the antenna main body 7.
When the pitch angle of the antenna main body 7 needs to be regulated down, the screw rod 27 is correspondingly rotated, so that the screw rod 27 pushes the sliding block 25 and the sliding rod 26 to be close to the outer hinging seat 22, the inclination angle of the connecting rod 28 is reduced, and the position of the outer hinging seat 22 away from the inner hinging seat 21 is lowered, so that the pitch angle of the antenna main body 7 is regulated down; when the pitch angle of the antenna main body 7 needs to be adjusted to be high, the screw rod 27 is correspondingly rotated, so that the screw rod 27 pushes the sliding block 25 and the sliding rod 26 to be far away from the outer hinging seat 22, the inclination angle of the connecting rod 28 is improved, and the position of the outer hinging seat 22 far away from the inner hinging seat 21 is lifted, so that the pitch angle of the antenna main body 7 is adjusted to be high; in addition, the length direction of the link 28 is always perpendicular to the length direction of the hinge lever 23 while the link 28 moves.
A stabilizing component is arranged between the lifting seat 5 and the outer hinge seat 22 and comprises an inner hinge strip 29 and an outer hinge strip 30, the inner hinge strip 29 is hinged at a position, close to the inner hinge seat 21, of the lifting seat 5, the length direction of a hinge shaft of the inner hinge strip 29 is parallel to the length direction of the hinge rod 23, the outer hinge strip 30 is hinged at the top position of the outer hinge seat 22, the length direction of a hinge shaft of the outer hinge strip 30 is parallel to the length direction of the hinge rod 23, and the hinge position of the outer hinge strip 30 and the outer hinge seat 22 is positioned above the hinge rod 23; the side surface of the inner hinging bar 29 is horizontally provided with an inner bar-shaped hole 31, the inner bar-shaped hole 31 penetrates through two opposite sides of the inner hinging bar 29, the length direction of the inner bar-shaped hole 31 is parallel to the length direction of the inner hinging bar 29, the side surface of the outer hinging bar 30 is provided with an outer bar-shaped hole 32 corresponding to the inner bar-shaped hole 31, the outer bar-shaped hole 32 penetrates through two opposite sides of the outer hinging bar 30, and the length direction of the outer bar-shaped hole 32 is parallel to the length direction of the outer hinging bar 30; the stabilizing assembly further comprises an adjusting bolt 33 and an adjusting nut 34, wherein the adjusting bolt 33 is arranged in the outer strip-shaped hole 32 and the inner strip-shaped hole 31 in a sliding mode, and the adjusting nut 34 is connected to the outer side of the adjusting bolt 33 in a threaded mode.
When the angle between the outer hinge seat 22 and the inner hinge seat 21 is adjusted, the corresponding angle between the inner hinge strip 29 and the outer hinge strip 30 is changed, so that the adjusting bolt 33 can slide to different positions of the outer strip-shaped hole 32 and the inner strip-shaped hole 31, after the outer hinge seat 22 is adjusted, the adjusting nut 34 is screwed, the adjusting nut 34 and the adjusting bolt 33 clamp the outer hinge strip 30 and the inner hinge strip 29, and accordingly the inner hinge strip 29 and the outer hinge strip 30 are fixed, and the connection stability of the outer hinge seat 22 is improved.
Referring to fig. 2, the connection rod 6 includes an inner connection frame 35 and an outer connection frame 36, the inner connection frame 35 is fixed at a position where the outer hinge seat 22 is far away from the inner hinge seat 21, the inner connection frame 35 is a hollow elongated frame body, a vertical section of the inner connection frame 35 is square, an end of the inner connection frame 35 far away from the outer hinge seat 22 is provided with an opening, the outer connection frame 36 is slidably inserted into the inner connection frame 35, an outer side of the outer connection frame 36 is attached to an inner side of the inner connection frame 35, an end of the outer connection frame 36 far away from the inner connection frame 35 extends out of the inner connection frame 35, and the antenna main body 7 is fixed at an end of the outer connection frame 36 far away from the inner connection frame 35; a connecting member is provided between the inner connecting frame 35 and the outer connecting frame 36, and the connecting member can fix the inner connecting frame 35 and the outer connecting frame 36. The top surface of the inner connecting frame 35 is vertically provided with a positioning hole 37, the positioning hole 37 is communicated with the inside of the inner connecting frame 35, the top surface of the outer connecting frame 36 is vertically provided with a plurality of through holes 38, the plurality of through holes 38 are linearly arranged in the length direction of the outer connecting frame 36, and the length direction of the positioning hole 37 and the length direction of all the through holes 38 are in the same straight line; in this embodiment, the connecting piece is a plug rod 39, and the plug rod 39 is inserted into the positioning hole 37 and any through hole 38.
The outer connecting frame 36 is pushed to enable the outer connecting frame 36 to slide in the inner connecting frame 35, and then the outer connecting frame 36 is fixed through the inserting rod 39, so that the horizontal distance between the antenna main body 7 and a product to be detected can be adjusted, the detection range of the antenna main body 7 is improved, and the practicability of the antenna main body is further improved.
In order to improve the connection strength between the upright rod 4 and the base 3, a reinforcing seat 40 is fixed at the bottom of the outer side of the connecting seat 8, the reinforcing seat 40 is located right below the inner hinging seat 21, and the bottom of the reinforcing seat 40 is fixed with the top of the base 3.
The implementation principle of the electromagnetic compatibility testing system of the product provided by the embodiment of the application is as follows: placing a product to be tested on the test bench 2, detecting radiation emitted by the product to be tested by the antenna main body 7, transmitting a radiation signal to a receiver, and collecting and analyzing the received radiation signal by the receiver; when a product with higher height needs to be detected, the servo motor 9 is started, the output end of the servo motor 9 drives the driving gear 10 to rotate, so that the driving gear 10 drives the internal tooth belt 12 to move to drive the fixed seat 13 to move, the lifting seat 5 can move up and down along with the movement of the fixed seat 13, and the height of the lifting seat 5 is correspondingly adjusted, so that the antenna main body 7 can detect products with different heights; when the product is required to be detected at a lower pitch angle, the screw rod 27 is correspondingly rotated, so that the screw rod 27 pushes the sliding block 25 and the sliding rod 26 to be close to the outer hinge seat 22, the inclination angle of the connecting rod 28 is reduced, and the position of the outer hinge seat 22 away from the inner hinge seat 21 is lowered, so that the pitch angle of the antenna main body 7 is reduced; when the product is required to be detected at a higher pitch angle, the screw rod 27 is correspondingly rotated, so that the screw rod 27 pushes the sliding block 25 and the sliding rod 26 to be far away from the outer hinging seat 22, the inclination angle of the connecting rod 28 is improved, and the position of the outer hinging seat 22 far away from the inner hinging seat 21 is lifted, so that the pitch angle of the antenna main body 7 is increased; when it is necessary to horizontally adjust the distance between the antenna main body 7 and the product to be measured, the outer connection frame 36 is pushed to slide the outer connection frame 36 in the inner connection frame 35, and then the outer connection frame 36 is fixed by the insertion rod 39 to adjust the horizontal distance between the antenna main body 7 and the product to be measured.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (5)
1. The utility model provides a product electromagnetic compatibility test system, includes shielding darkroom (1) and set up in testboard (2) in shielding darkroom (1), its characterized in that: the antenna device comprises a base (3), a vertical rod (4) arranged on the base (3), a lifting seat (5) sleeved on the outer side of the vertical rod (4) in a sliding mode, a lifting assembly arranged at the vertical rod (4) and used for driving the lifting seat (5) to lift, a hinge mechanism connected with the lifting seat (5), a connecting rod piece (6) connected with the hinge mechanism and an antenna main body (7) connected with the connecting rod piece (6); the lifting assembly comprises a servo motor (9) arranged on the base (3), a driving gear (10) connected with the output end of the servo motor (9) through a key, a driven gear (11) connected to the top of the upright (4) in a rotating mode, and an internal tooth belt (12) used for connecting the driving gear (10) and the driven gear (11), wherein the driving gear (10) is arranged at the bottom of the upright (4), the internal tooth belt (12) is meshed with the driving gear (10) and the driven gear (11) respectively, the driving gear (10) and the driven gear (11) are in transmission through the internal tooth belt (12), the lifting seat (5) is arranged at the inner side of the internal tooth belt (12), sliding seats and fixing seats (13) are respectively arranged at two opposite sides of the lifting seat (5), the internal tooth belt (12) is arranged in a sliding mode and fixedly arranged on the fixing seats (13) in a penetrating mode; the sliding seat comprises an inner fixing plate (15) vertically arranged on the outer side of the lifting seat (5), two groups of middle connecting plates (16) vertically arranged on one side, far away from the lifting seat (5), of the inner fixing plate (15), an outer fixing plate (17) vertically arranged on the end part, far away from the inner fixing plate (15), of the middle connecting plates (16) and two groups of outer connecting plates (18) vertically arranged between the outer fixing plates (17), the side surface of the middle connecting plates (16) is perpendicular to the side surface of the inner fixing plate (15), the side surface of the outer connecting plates (18) is perpendicular to the side surface of the inner fixing plate (15), an inner gear (19) and two groups of pressing wheels (20) are horizontally rotated between the outer connecting plates (18), the inner gear (19) is positioned on the inner side of an inner tooth belt (12), the pressing wheels (20) are positioned on the outer side of the inner tooth belt (12), the two pressing wheels (20) are respectively positioned above and below the inner gear (19), and the inner gear (19) is meshed with the inner tooth belt (12), and the inner gear (20) is connected with the outer side of the inner tooth belt (12). The hinge mechanism comprises an inner hinge seat (21) connected with the end part of the inner fixing plate (15) and the end part of the outer fixing plate (17), an outer hinge seat (22) hinged with the inner hinge seat (21) and an adjusting component for adjusting the angle between the inner hinge seat (21) and the outer hinge seat (22), the outer hinge seat (22) is hinged with the inner hinge seat (21) through a hinge rod (23), and the connecting rod piece (6) is connected to the position, far away from the inner hinge seat (21), of the outer hinge seat (22); the inner hinge seat (21) is horizontally provided with a kidney-shaped hole (24), the length direction of the kidney-shaped hole (24) is parallel to the length direction of the inner hinge seat (21), the adjusting component comprises a sliding block (25) which is connected in the inner hinge seat (21) in a sliding mode, sliding rods (26) which are horizontally arranged at two opposite end parts of the sliding block (25) and are arranged in the kidney-shaped hole (24) in a sliding mode, a same group of screw rods (27) which are arranged in the two middle connecting plates (16) in a penetrating mode in a threaded mode, and connecting rods (28) which are arranged between the sliding rods (26) and the outer hinge seat (22) in a penetrating mode, the sliding direction of the sliding block (25) is parallel to the length direction of the kidney-shaped hole (24), one end of each screw rod (27) is arranged in the sliding block (25) in a penetrating mode, the two ends of each connecting rod (28) are hinged to the corresponding sliding rod (26) and the outer hinge seat (22) in a rotating mode, and the length direction of each connecting rod (28) is always perpendicular to the length direction of the corresponding rod (23); the lifting seat (5) and the outer hinging seat (22) are provided with a stabilizing component, the stabilizing component comprises an inner hinging strip (29) hinged to one side of the lifting seat (5), an outer hinging strip (30) hinged to the outer hinging seat (22) and corresponding to the inner hinging strip (29), and an adjusting bolt (33) and an adjusting nut (34) used for fixing the inner hinging strip (29) and the outer hinging strip (30), the outer hinging strip (30) is provided with an outer strip-shaped hole (32), the length direction of the outer strip-shaped hole (32) is parallel to the length direction of the outer hinging strip (30), the inner hinging strip (29) is provided with an inner strip-shaped hole (31) corresponding to the outer strip-shaped hole (32), the adjusting bolt (33) is slidably arranged in the inner strip-shaped hole (31) and the outer strip-shaped hole (32), and the adjusting nut (34) is in threaded connection with the adjusting bolt (33).
2. A product electromagnetic compatibility testing system according to claim 1, wherein: the connecting rod piece (6) include the level set up in interior connection frame (35) and the slip of interior articulated seat (21) are kept away from to outer articulated seat (22) wear to locate outer connection frame (36) in interior connection frame (35), interior connection frame (35) are stretched out to one end that interior connection frame (35) was kept away from to outer connection frame (36), antenna main body (7) set up in outer connection frame (36), interior connection frame (35) are the cavity setting, the one end that outer articulated seat (22) was kept away from to interior connection frame (35) is the opening setting, be provided with the connecting piece between interior connection frame (35) and the outer connection frame (36), it is fixed through the connecting piece between interior connection frame (35) and the outer connection frame (36).
3. A product electromagnetic compatibility testing system according to claim 2, wherein: locating hole (37) have been vertically seted up at interior connecting frame (35) top, locating hole (37) and the inside intercommunication of interior connecting frame (35), a plurality of through-holes (38) have been vertically seted up at outer connecting frame (36) top, a plurality of through-hole (38) are arranged in the length direction of outer connecting frame (36), the connecting piece is inserted bar (39), inserted bar (39) are pegged graft in locating hole (37) and through-hole (38) of corresponding position.
4. A product electromagnetic compatibility testing system according to claim 1, wherein: the lifting seat (5) horizontally rotates to form a plurality of pulleys (14), the outer sides of the pulleys (14) are attached to the outer sides of the vertical rods (4), and the pulleys (14) are in rolling connection with the vertical rods (4).
5. A product electromagnetic compatibility testing system according to claim 1, wherein: the bottom position outside pole setting (4) is provided with reinforcement seat (40), reinforcement seat (40) are located interior articulated seat (21) below, reinforcement seat (40) bottom is connected with base (3) top.
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| CN202010808683.9A CN112114210B (en) | 2020-08-12 | 2020-08-12 | Product electromagnetic compatibility test system |
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| CN202010808683.9A CN112114210B (en) | 2020-08-12 | 2020-08-12 | Product electromagnetic compatibility test system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114354656B (en) * | 2021-12-07 | 2023-12-12 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | System-level sample testing system |
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| CN112114210A (en) | 2020-12-22 |
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