Traction converter interface structure

Abstract

The utility model discloses a traction converter interface structure, and relates to the technical field of electrical equipment. The traction converter comprises a traction converter body, the front side of the traction converter body is provided with a wire holder, and the front side of the wire holder is provided with a cable joint; a fixing assembly is arranged on the front side of the wire holder and comprises a fixing seat, the fixing seat is fixed to the front side of the wire holder, a transmission shaft is movably connected into the fixing seat, a connecting rod is fixedly connected to the surface of the transmission shaft, and the top of the connecting rod penetrates through the fixing seat and is fixedly connected with a limiting plate. According to the utility model, through the arrangement of the fixing assembly, after the cable joint is inserted into the wire holder, the cable joint can be clamped and limited, the cable joint is prevented from falling off when being shaken and pulled, the protection effect on the cable is improved, and meanwhile, the cable can be bent downwards along the placing groove, so that the cable can be conveniently inserted into an external wire arrangement groove, and the wire holder is convenient to use. And the effect of preventing excessive bending is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment, and in particular relates to an interface structure of a traction converter. Background Art

[0002] A traction inverter is a device used in electric traction systems and is widely used in electric vehicles and railway traction systems. Its main function is to convert DC power into AC power to drive the motor to generate traction. Different traction inverters may have different interface configurations and specifications. The design of these interfaces takes into account the control, monitoring and protection requirements of the traction system to achieve safe and reliable operation.

[0003] However, the traction inverter interface in the prior art lacks proper physical protection measures. The interface cable and the connecting plug may be damaged due to tension, twisting or mechanical impact, causing the connecting plug to fall off, resulting in electrical components being subjected to external voltage, current shock or overload, thereby damaging electronic components or causing circuit boards to burn out.

[0004] To this end, we provide a traction converter interface structure to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a traction inverter interface structure, which solves the problem that the traction inverter interface in the prior art lacks an anti-falling function through the coordinated arrangement of a fixed component and an adjusting component, and the cable plug is easily fallen off when pulled, causing the electrical components to be subjected to external voltage, current shock or overload.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a traction converter interface structure, comprising a traction converter body, a wiring seat is installed on the front side of the traction converter body, and a cable connector is arranged on the front side of the wiring seat;

[0008] A fixing assembly is provided on the front side of the wiring seat, and the fixing assembly includes a fixing seat, the fixing seat is fixed to the front side of the wiring seat, a transmission shaft is movably connected inside the fixing seat, a connecting rod is fixedly connected to the surface of the transmission shaft, the top of the connecting rod passes through the fixing seat and is fixedly connected to a limiting plate, a clamping plate is provided on the front side of the fixing seat, and a placement groove is opened on the front side of the fixing seat, and the cable connector is clamped and limited by the fixing assembly;

[0009] An adjusting component is arranged inside the fixing seat, and the positions of the limiting plate and the clamping plate are adjusted by the adjusting component.

[0010] The utility model is further configured that the adjustment component includes a first gear and a second gear, the first gear and the second gear are respectively fixed to the surfaces of two sets of transmission shafts, and a toothed plate is meshed on one side of the first gear.

[0011] The utility model is further configured such that the front side of the tooth plate passes through the fixing seat and is fixedly connected to the clamping plate, and the first gear is meshed with the second gear.

[0012] The utility model is further configured that one side of the tooth plate is fixedly connected with a screw rod, and one side of the screw rod penetrates the fixing seat and is threadedly connected with a nut.

[0013] The utility model is further configured that a clamping groove is provided on one side of the fixing seat, and a limiting groove is provided inside the clamping groove.

[0014] The utility model is further configured that a guide groove is provided on the top of the fixing seat, and through openings are provided on both sides of the fixing seat.

[0015] The utility model is further configured that a communication base is installed on one side of the traction inverter body, a cover plate is movably connected to one side of the communication base, and a protection groove is opened inside the cover plate.

[0016] The utility model is further configured that a mounting plate is fixedly connected to the bottom of the traction inverter body, and a mounting hole is opened inside the mounting plate.

[0017] The utility model has the following beneficial effects:

[0018] The utility model provides a fixing component to clamp and limit the cable connector after it is inserted into the terminal block, thereby preventing the cable connector from falling off when shaken and pulled, thereby improving the protection of the cable. At the same time, the cable can also be extended and bent downward in the slot, making it convenient to insert the cable into the external cable management slot, thereby preventing excessive bending.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The figure is a structural stereogram of a traction converter interface structure.

[0022] Figure 2A side view of a fixing seat in a traction converter interface structure.

[0023] Figure 3 The diagram is a top partial cross-sectional view of a fixing seat in a traction converter interface structure.

[0024] Figure 4 This is an exploded schematic diagram of the internal structure of a fixed seat in a traction converter interface structure.

[0025] Figure 5 A schematic diagram of releasing the fixation of a cable connector in a traction converter interface structure.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Traction inverter body; 2. Terminal block; 3. Cable connector; 4. Fixed seat; 5. Transmission shaft; 6. Connecting rod; 7. Limiting plate; 8. Clamping plate; 9. Placement slot; 10. First gear; 11. Second gear; 12. Tooth plate; 13. Screw; 14. Nut; 15. Slot; 16. Limiting slot; 17. Guide slot; 18. Communication seat; 19. Cover plate; 20. Protection slot; 21. Mounting plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] For specific embodiment 1, please refer to Figure 1-5 The utility model is a traction converter interface structure, comprising a traction converter body 1, a wiring seat 2 is installed on the front side of the traction converter body 1, and a cable connector 3 is arranged on the front side of the wiring seat 2;

[0030] A fixing assembly is provided on the front side of the wiring seat 2, and the fixing assembly includes a fixing seat 4, which is fixed to the front side of the wiring seat 2, and a transmission shaft 5 is movably connected inside the fixing seat 4, and a connecting rod 6 is fixedly connected to the surface of the transmission shaft 5, and the top of the connecting rod 6 passes through the fixing seat 4 and is fixedly connected to a limiting plate 7, and a clamping plate 8 is provided on the front side of the fixing seat 4, and a placement groove 9 is opened on the front side of the fixing seat 4, and the cable connector 3 is clamped and limited by the fixing assembly;

[0031] An adjusting component is arranged inside the fixing seat 4, and the positions of the limiting plate 7 and the clamping plate 8 are adjusted by the adjusting component.

[0032] Specifically; the terminal block 2 is the power input interface of the traction inverter body 1, which is used to connect the power signal provided by the battery pack or the power grid, usually an AC input, to control the start and stop, operation mode, speed and torque and other parameters of the inverter, and to transmit power to the motor through an AC signal. There are two clamping plates 8, which can block the front side of the cable connector 3 under the drive of the transmission shaft 5 to prevent it from falling off. The clamping plate 8 is an arc-shaped design, forming a circle with the placement groove 9, which can clamp and fix the cable.

[0033] For specific embodiment 2, please refer to Figure 1-5 On the basis of the specific embodiment 1, the adjustment component includes a first gear 10 and a second gear 11, the first gear 10 and the second gear 11 are respectively fixed to the surfaces of the two sets of transmission shafts 5, a toothed plate 12 is meshed on one side of the first gear 10, the front side of the toothed plate 12 passes through the fixed seat 4 and is fixedly connected to the clamping plate 8, the first gear 10 is meshed with the second gear 11, a screw 13 is fixedly connected on one side of the toothed plate 12, one side of the screw 13 passes through the fixed seat 4 and is threadedly connected with a nut 14, a slot 15 is provided on one side of the fixed seat 4, and a limiting slot 16 is provided inside the slot 15.

[0034] Specifically, the first gear 10 is meshed with the second gear 11. When the tooth plate 12 drives the first gear 10 to rotate, the first gear 10 and the second gear 11 can rotate relative to each other, thereby driving the two sets of limit plates 7 to rotate at the same time. The tooth plate 12 is meshed with the first gear 10, and the other end of the tooth plate 12 is fixed to the clamping plate 8. When the tooth plate 12 drives the clamping plate 8 to move, the first gear 10 can be driven to rotate accordingly. The nut 14 is threadedly connected to the screw 13, and the position of the tooth plate 12 can be limited.

[0035] For specific embodiment 3, please refer to Figure 1-5 On the basis of the first and second specific embodiments, a guide groove 17 is provided on the top of the fixing seat 4, through openings are provided on both sides of the fixing seat 4, a communication seat 18 is installed on one side of the traction inverter body 1, a cover plate 19 is movably connected to one side of the communication seat 18, a protective groove 20 is provided inside the cover plate 19, a mounting plate 21 is fixedly connected to the bottom of the traction inverter body 1, and a mounting hole is provided inside the mounting plate 21.

[0036] Specifically, the slot 15 is opened on one side of the fixing seat 4, and the inner diameter of the slot 15 is the same as the inner diameter of the screw 13, which can ensure that the screw 13 moves horizontally in the slot 15. The nut 14 has the same diameter as the limiting slot 16. After the nut 14 is rotated and inserted into the limiting slot 16, the screw 13 can be prevented from moving left and right, thereby fixing the position of the tooth plate 12. The guide groove 17 has the same diameter as the connecting rod 6, which can ensure that the connecting rod 6 slides in the guide groove 17. The diameter of the protective groove 20 is larger than the diameter of the communication cable, and smaller than the diameter of the communication cable connector 3, which can limit the communication cable connector 3.

[0037] The working principle of the utility model is as follows: when the cable connector 3 needs to be taken out, the staff manually rotates the nut 14 to disengage the nut 14 from the slot 15, canceling the limit on the tooth plate 12, and then moves the screw rod 13 forward, and the screw rod 13 cooperates with the tooth plate 12 to drive the clamping plate 8 to move, canceling the fixation of the cable;

[0038] The toothed plate 12 moves while driving the first gear 10 to rotate. The first gear 10 cooperates with the second gear 11 to drive the two groups of connecting rods 6 to rotate in opposite directions. The connecting rods 6 drive the limiting plate 7 to rotate, canceling the limit on the cable connector 3, so that the cable connector 3 can be separated from the wiring seat 2.

[0039] When the cable connector 3 is reinserted into the terminal block 2, the cable can be bent downward to move the cable into the placement groove 9, and then the screw 13 is pushed backward. The screw 13 drives the tooth plate 12 to move, so that the clamping plate 8 fits the cable to clamp the cable. The tooth plate 12 moves and drives the two sets of limit plates 7 to rotate relative to each other, thereby blocking the front side of the cable connector 3, preventing the cable from falling off, and improving the protection effect.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A traction converter interface structure, comprising a traction converter body (1), characterized in that: A wiring seat (2) is installed on the front side of the traction converter body (1), and a cable connector (3) is provided on the front side of the wiring seat (2); A fixing assembly is arranged at the front side of the wiring seat (2), and the fixing assembly comprises a fixing seat (4), the fixing seat (4) is fixed to the front side of the wiring seat (2), a transmission shaft (5) is movably connected inside the fixing seat (4), a connecting rod (6) is fixedly connected to the surface of the transmission shaft (5), the top of the connecting rod (6) passes through the fixing seat (4) and is fixedly connected to a limiting plate (7), a clamping plate (8) is arranged at the front side of the fixing seat (4), and a placement groove (9) is opened at the front side of the fixing seat (4), and the cable connector (3) is clamped and limited by the fixing assembly; An adjustment component is provided inside the fixing seat (4), and the positions of the limiting plate (7) and the clamping plate (8) are adjusted by means of the adjustment component.

2. A traction converter interface structure according to claim 1, characterized in that: The adjustment assembly comprises a first gear (10) and a second gear (11), wherein the first gear (10) and the second gear (11) are respectively fixed to the surfaces of two sets of transmission shafts (5), and a toothed plate (12) is meshed on one side of the first gear (10).

3. A traction converter interface structure according to claim 2, characterized in that: The front side of the toothed plate (12) passes through the fixed seat (4) and is fixedly connected to the clamping plate (8), and the first gear (10) is meshed with the second gear (11).

4. A traction converter interface structure according to claim 2, characterized in that: One side of the toothed plate (12) is fixedly connected to a screw rod (13), and one side of the screw rod (13) passes through the fixing seat (4) and is threadedly connected to a nut (14).

5. The traction converter interface structure according to claim 1, characterized in that: A clamping slot (15) is provided on one side of the fixing seat (4), and a limiting slot (16) is provided inside the clamping slot (15).

6. A traction converter interface structure according to claim 1, characterized in that: A guide groove (17) is provided on the top of the fixing seat (4), and openings are provided on both sides of the fixing seat (4).

7. A traction converter interface structure according to claim 1, characterized in that: A communication base (18) is installed on one side of the traction converter body (1), a cover plate (19) is movably connected to one side of the communication base (18), and a protection groove (20) is provided inside the cover plate (19).

8. The traction converter interface structure according to claim 1, characterized in that: A mounting plate (21) is fixedly connected to the bottom of the traction converter body (1), and a mounting hole is provided inside the mounting plate (21).

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