Load box for electromagnetic compatibility experiment of engine controller

Abstract

The utility model relates to the technical field of electromagnetic compatibility testing, and discloses an engine controller electromagnetic compatibility experiment load box which comprises a load box shell, a working element is arranged in the load box shell, and two protection rings are fixedly connected to the outer walls of the two ends of the load box shell respectively. A plurality of heat dissipation grooves are formed in the two sides of the load box shell respectively, the top of the load box shell is detachably connected with a box cover, the inner wall of the box cover is rotationally connected with a maintenance mechanism, the close sides of the two protection rings are fixedly connected with a supporting mechanism, and the supporting mechanism comprises two connecting rods. According to the utility model, the self-adaptive support of the load box on different working table surfaces is realized, the stability of the load box when the load box is placed on a complex working table surface is ensured, the influence of vibration on internal elements caused by uneven ground is avoided, the accuracy and reliability of experimental data are ensured, and the universality and adaptability of the load box are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromagnetic compatibility test, especially relates to a engine controller electromagnetic compatibility experiment load box. BACKGROUND

[0002] The engine controller is a kind of key electronic equipment for controlling the operation of engine, it can accurately control the various parameters and working conditions of engine.The engine controller electromagnetic compatibility experiment is carried out for the controller, aims at detecting whether it can work normally under complex electromagnetic environment, whether it will be interfered by electromagnetic interference and the situation of its own electromagnetic interference.The engine controller electromagnetic compatibility experiment load box is an important device used in this kind of electromagnetic compatibility experiment, its role is to simulate the load condition connected by engine controller when actually working, help to create more real working condition experimental conditions, so that electromagnetic compatibility test result is more accurate, reliable, to guarantee the electromagnetic compatibility of engine controller meets relevant requirements.

[0003] The engine controller electromagnetic compatibility experiment load box usually contains load resistance, inductance, capacitance and other simulation load elements, also has the interface for connecting engine controller, control circuit and the module of display monitoring relevant parameters and other structures.The working principle is that through the internal various simulation load elements, according to the load characteristics of engine under different working conditions in actual operation, corresponding configuration is carried out, is connected with engine controller in experiment, receives the electric signal output by controller and simulates the corresponding load effect in real working, simultaneously adjusts and monitors parameters by control circuit, to provide accurate and reliable load simulation environment for electromagnetic compatibility experiment.

[0004] In prior art, due to the unevenness of work plane, the load box is easily placed unstable on the uneven workbench, and is affected by the shaking generated by the cooling fan running inside the load box, so that part of the load box is difficult to maintain the stability of the whole when in use, causes the internal element connection of load box to be loose, contact is bad, makes the simulated load parameter deviation, thereby interfering with the result of engine controller electromagnetic compatibility experiment, therefore, an engine controller electromagnetic compatibility experiment load box is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides an engine controller electromagnetic compatibility experiment load box, to improve the problem that part of the load box in prior art is difficult to maintain the stability of the whole when in use.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:

[0007] An engine controller electromagnetic compatibility experiment load box, including load box shell, the inside of load box shell is provided with working element, the outer wall of both ends of load box shell is fixedly connected with two protective rings respectively, the both sides of load box shell are respectively provided with a plurality of cooling grooves, the top of load box shell is detachably connected with box cover, the inner wall of box cover is rotatably connected with maintenance mechanism, the side close to two protective rings is fixedly connected with support mechanism respectively;

[0008] The support mechanism includes two connecting rods, both ends of the two connecting rods are fixedly connected to the side close to the protective ring, the outer wall of the connecting rod is rotatably connected with two sleeves, the bottom of the sleeve is fixedly connected with a fixed cylinder, the bottom of the fixed cylinder is slidably connected with a transmission rod, the top of the transmission rod is fixedly connected with a stabilizing assembly, the bottom of the transmission rod is fixedly connected with a rotating stake, the bottom of the rotating stake is rotatably connected with a rotating ball, and the bottom of the rotating ball is fixedly connected with a bottom disc.

[0009] As a further description of the above technical solution:

[0010] The stabilizing assembly includes a piston, the bottom of the piston is fixedly connected to the top of the transmission rod, the outer side of the piston is sleeved with a sealing ring, and the top of the piston is fixedly connected with an oil tank.

[0011] As a further description of the above technical solution:

[0012] The maintenance mechanism includes a plurality of knob rings, the outer wall of the plurality of knob rings is rotatably connected to the inner wall of the box cover, the inner wall of the knob ring is rotatably connected with a locking column, the bottom of the knob ring is fixedly connected with a plurality of connecting columns, the top of the load box shell is rotatably connected with a plurality of rotating discs, the top of the load box shell is slidably connected with a plurality of clamping blocks, and the top of the clamping block is fixedly connected with a sliding column.

[0013] As a further description of the above technical solution:

[0014] The bottom outer side of the locking column is provided with a plurality of clamping grooves, and the outer wall of the clamping block is detachably connected in the inside of the clamping groove.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the locking column is fixedly connected with two rotating rings, and the inner wall of the knob ring is slidably connected to the outer wall of the two rotating rings.

[0017] As a further description of the above technical solution:

[0018] The bottom of the rotating disc is provided with a plurality of arc-shaped grooves, the top of the slide post is slidably connected in the arc-shaped grooves, and the outer walls of the plurality of slide posts are slidably connected in the load box shell.

[0019] As a further description of the above technical scheme:

[0020] The outer wall of the piston is slidably connected to the inner wall of the fixed cylinder, and the outer wall of the sealing ring is in contact with the inner wall of the fixed cylinder.

[0021] As a further description of the above technical scheme:

[0022] The top of the rotating disc is provided with a plurality of butt grooves, and the bottom of the connecting post is detachably connected in the butt grooves.

[0023] The utility model has the advantages of:

[0024] 1、the utility model discloses a load box is placed on different flatness workbench surface, and the fixed cylinder angle changes and drives transmission rod movement, so that when the load box one side subsides or rises, corresponding side piston respectively moves down or moves up, and then through pressure effect makes hydraulic oil corresponding flow and provides reverse force, so that the balance of the load box is maintained, and the sleeve provides vertical horizontal rotation basis for the whole supporting mechanism, and then the rotating table and the rotating ball cooperate to provide vertical vertical rotation basis, so that the load box realizes self -adaptation support on different workbench surface, guarantees the stability of the load box when placing on complex workbench surface, avoids that internal element is affected by vibration because of uneven ground, ensures experimental data accurate and reliable, and enhances the versatility and adaptability of the load box.

[0025] 2、the utility model discloses a rotating knob ring, and the connecting post drive rotating disc rotation, and then arc-shaped groove guides slide post movement, and drives the outward movement of the clamping block and the separation of the clamping groove, so that the box cover is taken out, and the reverse rotation knob ring is rotated, so that the clamping block is fixed with the clamping groove and the fixed lock column, the stable connection of the box cover and the load box shell is realized, so that the effect that the load box is conveniently disassembled is realized, the maintenance time is shortened, the box cover can be quickly opened for maintenance when failure occurs, the equipment downtime is reduced, and the overall operation efficiency of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of an engine controller electromagnetic compatibility experiment load box is provided for the utility model;

[0027] Figure 2 A structure schematic view of the load box shell of the engine controller electromagnetic compatibility experiment load box is provided for the utility model;

[0028] Figure 3A locking column structure diagram of an engine controller electromagnetic compatibility experimental load box is provided in the utility model.

[0029] Figure 4 A rotating disc structure diagram of an engine controller electromagnetic compatibility experimental load box is provided in the utility model.

[0030] Figure 5 A connecting rod structure diagram of an engine controller electromagnetic compatibility experimental load box is provided in the utility model.

[0031] Figure 6 For Figure 2 The enlarged view of A in the figure.

[0032] Figure 7 For Figure 5 The enlarged view of B in the figure.

[0033] Legend:

[0034] 1, load box shell; 2, guard ring; 3, heat dissipation groove; 4, box cover; 5, knob ring; 6, rotating ring; 7, locking column; 8, connecting column; 9, rotating disc; 10, arc-shaped groove; 11, clamping block; 12, sliding column; 13, clamping groove; 14, connecting rod; 15, sleeve; 16, fixed cylinder; 17, transmission rod; 18, piston; 19, sealing ring; 20, oil tank; 21, rotating pile; 22, rotating ball; 23, chassis. Specific implementation

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0036] Refer to Figure 2 , Figure 3 , Figure 4 , Figure 6The utility model provides an embodiment: a kind of engine controller electromagnetic compatibility experiment load box, including load box shell 1, load box shell 1 as the main frame of whole device, provides the stable protective space for internal working element, prevent outside factor from interfering with and damaging working element, it can also shield electromagnetic interference to a certain extent, guarantee the normal operation of internal element. Working element is provided in the inside of load box shell 1, according to specific circuit principle and electromagnetism principle, carries out various performance test and compatibility detection to engine controller, for example, by simulating different load conditions, to test the electromagnetic compatibility performance of engine controller under different working conditions, ensure the reliability and stability of engine controller in actual application scene.

[0037] Two protective rings 2 are fixedly connected to the outer walls of the two ends of the load box shell 1, and the protective rings 2 mainly play a role in protecting the edge part of the load box shell 1, preventing the load box shell 1 from being damaged due to accidental situations such as collision during transportation, installation or use. A plurality of heat dissipation grooves 3 are formed in the two sides of the load box shell 1, and the heat dissipation grooves 3 provide a channel for heat dissipation. Heat can be transferred from the working element to the load box shell 1 through heat conduction, and then through the heat dissipation grooves 3 and the surrounding air to form a heat convection, dissipating heat to the surrounding environment. The top of the load box shell 1 is detachably connected to a box cover 4, and the detachable connection of the box cover 4 facilitates the maintenance, repair and replacement of the working element inside the load box. The inner wall of the box cover 4 is rotatably connected to a maintenance mechanism, and the proximal side of the two protective rings 2 is fixedly connected to a support mechanism.

[0038] The support mechanism includes two connecting rods 14, and the two ends of the two connecting rods 14 are fixedly connected to the proximal side of the protective ring 2. The connecting rod 14 plays a role in connection and fixation, forming a stable overall structure of the support mechanism and the protective ring 2, and ensuring that the entire load box has a reliable support basis when placed. The outer wall of the connecting rod 14 is rotatably connected to two sleeves 15, which provide a rotating basis for the rotation of the subsequent structure, so that the support mechanism can adapt to different placement planes and inclination angles in the vertical transverse direction. The bottom of the sleeve 15 is fixedly connected to a fixed cylinder 16, which is used to bear subsequent components and provide a mounting and moving basis for subsequent components. The bottom of the fixed cylinder 16 is slidably connected to a transmission rod 17, which can slide up and down in the fixed cylinder 16. When the angle of the fixed cylinder 16 changes, the transmission rod 17 can adjust the position accordingly to adapt to different support needs.

[0039] The top of the transmission rod 17 is fixedly connected with a stabilizing assembly, the bottom of the transmission rod 17 is fixedly connected with a rotating pile 21, the bottom of the rotating pile 21 is rotatably connected with a rotating ball 22, and the cooperation of the rotating pile 21 and the rotating ball 22 enables the whole supporting mechanism to rotate inward in the vertical longitudinal direction, further enhancing the adaptability of the supporting mechanism to different ground conditions. The bottom of the rotating ball 22 is fixedly connected with a chassis 23, when the load box is placed on the ground with slope or unevenness, the chassis 23 can flexibly adjust the angle according to the actual situation of the ground, ensuring sufficient contact with the ground, thereby providing stable and reliable support for the load box.

[0040] The stabilizing assembly comprises a piston 18, the bottom of the piston 18 is fixedly connected to the top of the transmission rod 17, and the outer wall of the piston 18 is slidably connected to the inner wall of the fixed cylinder 16. When the load box is placed on uneven ground, the angle of the fixed cylinder 16 changes, driving the transmission rod 17 to move, and then the piston 18 moves up and down in the fixed cylinder 16. The outer side of the piston 18 is provided with a sealing ring 19, and the outer wall of the sealing ring 19 is in contact with the inner wall of the fixed cylinder 16. The sealing ring 19 ensures the sealing between the piston 18 and the fixed cylinder 16, preventing subsequent hydraulic oil leakage. The top of the piston 18 is fixedly connected with an oil tank 20, a plurality of oil outlets are formed on the outer side of the oil tank 20, and the oil tank 20 is provided with hydraulic oil. During the movement of the piston 18, the hydraulic oil plays a role in stabilizing the support angle.

[0041] Referring to Figure 1 , Figure 5 , Figure 7 , the maintenance mechanism comprises a plurality of knob rings 5, the outer wall of the knob ring 5 is rotatably connected to the inner wall of the box cover 4, and the knob ring 5 is used as a key component for operation. The rotating connection mode of the knob ring 5 and the box cover 4 enables the operator to easily rotate the knob ring 5. The inner wall of the knob ring 5 is rotatably connected with a locking column 7, which is used to cooperate with the subsequent structure to fix the box cover 4 on the load box shell 1. The outer wall of the locking column 7 is fixedly connected with two rotating rings 6, the inner wall of the knob ring 5 is slidably connected to the outer wall of the two rotating rings 6, the rotating ring 6 enhances the stability of the connection between the locking column 7 and the knob ring 5, provides a smooth track for the sliding of the knob ring 5 on the locking column 7, and makes the knob ring 5 more stable during rotation and sliding, and is not easy to appear jamming or deviation phenomenon. The bottom of the knob ring 5 is fixedly connected with a plurality of connecting columns 8, which are used as components for transmitting force and realizing connection function, and transmit the operating force of the knob ring 5 to the corresponding structure below.

[0042] The top of the load box shell 1 is rotationally connected with a plurality of rotating discs 9, the top of the rotating disc 9 is provided with a plurality of butt joints grooves, the bottom of the connecting column 8 is detachably connected in the butt joint groove, so that when the whole box cover 4 covers the top of the load box shell 1, the connecting column 8 at the bottom of the knob ring 5 enters the butt joint groove, so that the rotation of the knob ring 5 can drive the rotating disc 9 to rotate on the top of the load box shell 1 through the transmission of the connecting column 8. The top of the load box shell 1 is slidably connected with a plurality of clamping blocks 11, the bottom outer side of the locking column 7 is provided with a plurality of clamping grooves 13, the outer wall of the clamping block 11 is detachably connected in the clamping groove 13, when the rotating disc 9 rotates, the four clamping blocks 11 are driven to move to the middle and then enter the clamping groove 13, so as to form a locking structure through the clamping block 11 and the locking column 7, and stabilize the connection between the whole box cover 4 and the load box shell 1.

[0043] The top of the clamping block 11 is fixedly connected with a sliding column 12, the bottom of the rotating disc 9 is provided with a plurality of arc grooves 10, the top of the sliding column 12 is slidably connected in the arc groove 10, the arc groove 10 is arranged in an arc shape from the outer circle of the rotating disc 9 to the center, so that the sliding column 12 moves along the arc groove 10 through the rotation of the rotating disc 9, and the sliding column 12 moves from the outer side of the rotating disc 9 to the center of the rotating disc 9, so as to drive the clamping block 11 to move to the center of the locking column 7. The outer wall of the plurality of sliding columns 12 is slidably connected in the load box shell 1, so as to provide a sliding track for the movement of the sliding column 12 and limit the movement of the sliding column 12 in other directions.

[0044] Working principle: when the load box is placed on uneven ground, the angle of the fixed cylinder 16 changes, the transmission rod 17 moves, and then the piston 18 moves up and down in the fixed cylinder 16. Since the oil tank 20 is connected with the piston 18, the movement of the piston 18 makes the hydraulic oil in the oil tank 20 flow out or return through the oil outlet hole. In this process, the hydraulic oil plays a role in stabilizing the support angle. When one side of the load box sinks due to uneven ground, the angle of the fixed cylinder 16 on this side changes, the piston 18 moves downward, and the hydraulic oil in the lower oil tank 20 flows out to the inside of the fixed cylinder 16 through the oil outlet hole, so that the piston 18 and the transmission rod 17 are kept in a stable state through the upward extrusion of the hydraulic oil by the reaction force of the piston 18, and then the load box is kept balanced through the hydraulic oil; on the contrary, when one side of the load box rises, the piston 18 moves upward, extruding the hydraulic oil to return to the oil tank 20, and providing a reverse force to stabilize the whole load box through the remaining hydraulic oil, so as to realize the self-adaptive support function.

[0045] When the load box needs to be repaired, the knob ring 5 can be rotated, the rotation of the knob ring 5 can drive the rotating disc 9 to rotate on the top of the load box shell 1 through the transmission action of the connecting column 8, and then the sliding column 12 moves along the arc-shaped groove 10 through the design of the arc-shaped groove 10, that is, moves away from the center position of the rotating disc 9, so as to drive the clamping block 11 to move outward until the clamping block 11 is completely separated from the clamping groove 13, and then the clamping block 11 and the locking column 7 are unlocked, that is, the entire box cover 4 can be taken out, and then the working elements inside the load box are convenient to overhaul and maintain, and after the overhaul is completed, the box cover 4 is covered, the knob ring 5 is reversely rotated, the clamping block 11 and the clamping groove 13 are connected, and then the locking column 7 is fixed, so that the box cover 4 can be stably connected with the load box shell 1.

[0046] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. An engine controller electromagnetic compatibility test load box comprising a load box housing (1), characterised in that: The inside of the load box shell (1) is provided with working elements, two protective rings (2) are fixedly connected to the two end walls of the load box shell (1) respectively, a plurality of heat dissipation grooves (3) are formed in the two sides of the load box shell (1) respectively, and a box cover (4) is detachably connected to the top of the load box shell (1), a maintenance mechanism is rotatably connected to the inner wall of the box cover (4), and support mechanisms are fixedly connected to the proximal sides of the two protective rings (2). The support mechanism comprises two connecting rods (14), the two ends of the two connecting rods (14) are fixedly connected to the proximal sides of the protective rings (2) respectively, rotating sleeves (15) are rotatably connected to the outer walls of the connecting rods (14), fixed cylinders (16) are fixedly connected to the bottoms of the rotating sleeves (15), transmission rods (17) are slidably connected to the bottoms of the fixed cylinders (16), stable assemblies are fixedly connected to the tops of the transmission rods (17), rotating piles (21) are fixedly connected to the bottoms of the transmission rods (17), rotating balls (22) are rotatably connected to the bottoms of the rotating piles (21), and bottoms (23) are fixedly connected to the bottoms of the rotating balls (22).

2. The EMC test load box for an engine controller according to claim 1, characterized in that: The stable assembly comprises a piston (18), the bottom of the piston (18) is fixedly connected to the top of the transmission rod (17), a sealing ring (19) is sleeved on the outer side of the piston (18), and an oil tank (20) is fixedly connected to the top of the piston (18).

3. The EMC test load box for an engine controller according to claim 1, characterized in that: The maintenance mechanism comprises a plurality of knob rings (5), the outer walls of the plurality of knob rings (5) are rotatably connected to the inner wall of the box cover (4), locking columns (7) are rotatably connected to the inner walls of the knob rings (5), a plurality of connecting columns (8) are fixedly connected to the bottoms of the knob rings (5), a plurality of rotating discs (9) are rotatably connected to the top of the load box shell (1), a plurality of clamping blocks (11) are slidably connected to the top of the load box shell (1), and sliding columns (12) are fixedly connected to the tops of the clamping blocks (11).

4. An EMC test load box for an engine controller as claimed in claim 3, characterized in that: A plurality of clamping grooves (13) are formed in the bottom outer side of the locking column (7), and the outer wall of the clamping block (11) is detachably connected in the clamping groove (13).

5. An EMC test load box for an engine controller as recited in claim 3, characterized by: The outer wall of the locking column (7) is fixedly connected with two rotating rings (6), and the inner wall of the knob ring (5) is slidably connected to the outer walls of the two rotating rings (6).

6. An EMC test load box for an engine controller according to claim 3, characterized in that: A plurality of arc-shaped grooves (10) are formed in the bottom of the rotating disc (9), the top of the sliding column (12) is slidably connected in the arc-shaped groove (10), and the outer walls of the plurality of sliding columns (12) are slidably connected in the load box shell (1).

7. An EMC test load box for an engine controller according to claim 2, characterized in that: The outer wall of the piston (18) is slidably connected to the inner wall of the fixed cylinder (16), and the outer wall of the sealing ring (19) is in contact with the inner wall of the fixed cylinder (16).

8. An EMC test load box for an engine controller according to claim 3, characterized in that: A plurality of butt joints are formed in the top of the rotating disc (9), and the bottom of the connecting column (8) is detachably connected in the butt joint.

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