Mutual inductor fastener of ship power distribution cabinet

Abstract

The utility model discloses a ship power distribution cabinet mutual inductor fastener which comprises a body and a length adjusting bolt, the body is a clamping block provided with a through groove, the tail end of the length adjusting bolt is provided with an extrusion piece or a clamping piece, and the body is further provided with a fastening bolt extending to the through groove. According to the technical scheme provided by the utility model, a reliable and safe fixing measure can be provided for the copper bar and the current transformer under the special conditions of the ship power distribution cabinet and navigation under the condition that a conventional power distribution cabinet is not provided with a transformer fixing device; due to the arrangement of the fastening bolts, the device can adapt to mutual inductors of different specifications; particularly, a clamping piece is further introduced, the mutual inductor can be installed on the narrow side face of the copper bar, and when the mutual inductor works for a long time, deformation of the copper bar caused by the stress effect is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship distribution cabinet accessories, in particular to a current transformer fastener. Background Art

[0002] The copper busbar installed in the ship's power distribution cabinet can generate a current of up to 6000A, which needs to be used with a transformer. Due to the strict technical requirements and the different specifications of the transformers available on the market, the power distribution cabinet manufacturers do not provide a structure for placing current transformers in the power distribution cabinet.

[0003] like Figure 8 As shown, the prior art uses a metal strip fastener to solve the above problem, with bolts provided at both ends of the metal strip, and pads installed on the bolts to avoid direct contact with the copper busbar. The metal strip fastener and the copper busbar are inserted into the middle of the transformer, and a slot suitable for the metal strip fastener is provided on the transformer. After the metal strip fastener is inserted into the slot, the length of the bolt is adjusted so that the metal strip fastener is placed between the copper busbar and the transformer and subjected to extrusion pressure, thereby fixing the transformer. However, due to the lack of a limiting structure, the metal strip fastener is easily affected by vibration during the navigation of the ship, resulting in relative movement between the fastener and the transformer in the upper and lower directions, resulting in loosening and falling off. Moreover, when the metal strip fastener is installed on the wider front side of the copper busbar, the copper busbar may be subjected to uneven force for a long time and deformed. When it is installed on the narrower side of the copper busbar, the contact surface between the pads and the copper busbar is small and it is easy to fall off. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects in the prior art and provide a ship power distribution cabinet transformer fastener with a simple structure and easy use. The ship power distribution cabinet transformer fastener can reduce the impact of bumps and vibrations during the ship's navigation, firmly and stably install the transformer, and can install the transformer on the narrow side of the copper busbar, thereby alleviating deformation of the copper busbar caused by uneven force.

[0005] To achieve the above-mentioned object, the technical solution provided by the present invention is as follows: a fastener for a transformer in a ship power distribution cabinet, comprising a body and a length adjustment bolt, wherein the body is a clamping block with a through slot, an extrusion piece or a clamping piece is provided at the end of the length adjustment bolt, and the depth of the through slot is greater than 5 mm;

[0006] In order to improve the friction between the transformer fastener of the ship's power distribution cabinet and the transformer, the technical solution provided by the utility model is: a rubber pad is provided on the surface of the through groove;

[0007] In order to adapt to different sizes of transformers, the technical solution provided by the present invention is that a fastening bolt is further provided on the body of the transformer fastener of the ship's power distribution cabinet, and the fastening bolt extends to the through slot.

[0008] In order to avoid direct contact with the copper busbar, the technical solution provided by the present invention is as follows: an extrusion piece is provided at the end of the length adjustment bolt;

[0009] Preferably, the extruded member is a plastic foot;

[0010] Preferably, the extruded member is a rubber block;

[0011] Furthermore, a rubber pad is provided on the contact surface between the extrusion piece and the copper busbar.

[0012] In order to realize the installation of the mutual inductor on the narrow side of the copper busbar, the technical solution provided by the utility model is: a clamping piece is provided at the end of the length adjustment bolt, and the clamping piece can clamp the side of the copper busbar.

[0013] Preferably, the clamping member is a plastic clamp, which relies on the elasticity of the plastic to clamp the side of the copper busbar;

[0014] Preferably, the clamping member is a stepped plastic block, and the step distance is adapted to copper bars of different specifications;

[0015] Furthermore, a rubber pad is provided on the inner surface of the clamping member.

[0016] The advantages and beneficial effects of the present invention are as follows: the transformer fastener for the transmission distribution cabinet proposed by the present invention provides a reliable and safe fixing measure for the copper busbar and the current transformer under the special conditions of the ship distribution cabinet and navigation and when the conventional distribution cabinet does not provide a transformer fixing device; through the setting of the fastening bolts, it can adapt to transformers of different specifications; in particular, the present invention also introduces a clamping piece, which can install the transformer on the narrower side of the copper busbar, and when the transformer works for a long time, it reduces the deformation of the copper busbar caused by stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the first embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the fastener structure of the ship power distribution cabinet in the second embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the fasteners of the ship power distribution cabinet according to the second embodiment of the present utility model;

[0020] Figure 4 This is a top view of the fastener structure of the ship power distribution cabinet in the second embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the fastener structure of the ship power distribution cabinet in the third embodiment of the present utility model;

[0022] Figure 6This is a top view of the fastener structure of the ship power distribution cabinet in the third embodiment of the present utility model;

[0023] Figure 7 This is a cross-sectional view of a limiting member of a fastener for a ship power distribution cabinet in a third embodiment of the present utility model;

[0024] Figure 8 It is a schematic diagram of the use of metal strip fasteners in the prior art;

[0025] In the figure: 1-body, 2-length adjustment bolt, 3-limiting piece, 4-extrusion piece, 5-clamping piece, 6-through slot, 7-rubber pad, 8-copper busbar, 9-mutual inductor, 31-second through slot, 32-slider, 33-screw, 34-threaded blind hole. DETAILED DESCRIPTION

[0026] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0027] Example 1

[0028] like Figure 1 The figure shows a fastener for a transformer in a ship's power distribution cabinet, comprising a body 1, a length adjustment bolt 2, a stopper 3, and an extrusion 4. The body 1 is a block with a through slot 6, the inner surface of which is provided with a rubber pad 7. The stopper 3 is mounted on the body 1 and extends into the through slot 6. The stopper 3 is a fastening bolt. The extrusion 4 is a plastic foot mounted at the end of the length adjustment bolt 2, and the surface of the plastic foot is provided with a rubber pad 7. This is mainly related to the smooth surface of the busbar copper bar. Generally, the plastic foot has little friction with the copper bar surface, which makes it difficult to effectively support the transformer in relative position and prevent it from sliding down. The rubber pad can effectively increase the friction between the foot and the copper bar surface, preventing the ship's vibration transformer from sliding down. The depth of the through slot is not less than 5 mm, and generally does not exceed the thickness of the annular transformer wall. That is, the through slot effectively holds the transformer in place, preventing the through slot from being too shallow and easily falling off due to vibration. In this embodiment, the through slot 6 is 5 mm deep.

[0029] When using the above-mentioned ship power distribution cabinet fastener, the plastic pad contacts the front of the copper busbar 8, the mutual inductor 9 is inserted into the through slot 6, and the fastening bolt is rotated to lock the body 1 of the ship power distribution cabinet fastener and the mutual inductor 9. Use another ship power distribution cabinet fastener and install it on the back of the copper busbar 8 in the same way. Rotate the length adjustment bolt 2 and fix the mutual inductor 9 by relying on the extrusion force between the length adjustment bolt 2 and the copper busbar 8.

[0030] Example 2

[0031] like Figure 2~Figure 3As shown: A fastener for a transformer in a ship power distribution cabinet, comprising a body 1, a length adjusting bolt 2, a limiter 3, and a clamping member 5. The body 1 is a clamping block with a through slot 6, the inner surface of which is provided with a rubber pad 7. The limiter 3 is provided on the body 1 and extends to the through slot 6. The limiter 3 is a fastening bolt. The clamping member 5 is a plastic clamp provided at the end of the length adjusting bolt 2. A rubber pad 7 is provided on the surface of the plastic clamp. In this embodiment, the depth of the through slot 6 is 8 mm.

[0032] like Figure 4 As shown: when using the above-mentioned ship distribution cabinet fastener, the plastic pliers clamp one side of the copper busbar 8, the mutual inductor 9 is stuck in the through slot 6, and the fastening bolt is rotated to lock the body 1 of the ship distribution cabinet fastener and the mutual inductor 9. Use another ship distribution cabinet fastener and install it on the other side of the copper busbar 8 in the same way. Rotate the length adjustment bolt 2, and rely on the extrusion force between the length adjustment bolt 2 and the copper busbar 8 and the elastic force of the plastic pliers to fix the mutual inductor 9. The mutual inductor is installed on the side of the copper busbar. Different from the existing technology, the side installation alleviates the problem of deformation of the copper busbar 8 caused by the extrusion force. By clamping the side, it also provides additional friction between the copper busbar 8 and the ship distribution cabinet mutual inductor fastener compared with the existing technology.

[0033] If the clamping piece 5 cannot be installed due to its length, the length adjusting bolt 2 can be rotated to remove the clamping piece 5, and the clamping piece 5 can be installed on the copper bus 8 first. When the length adjusting bolt is rotated in the subsequent installation process, the assembly of the clamping piece 5 and the length adjusting bolt 2 is completed for successful implementation.

[0034] Example 3

[0035] like Figures 5 to 7 As shown: A fastener for a transformer in a ship power distribution cabinet, comprising a body 1, a length adjusting bolt 2, a limiter 3, and a clamping member 5. The body 1 is a card block with a through slot 6, the inner surface of the through slot 6 is provided with a rubber pad 7, the limiter 3 is a slider 32 with a second through slot 31 and a screw 33 provided in the second through slot 31, the body 1 is further provided with a threaded blind hole 34 suitable for the screw 33, the second through slot 31 can also accommodate the length adjusting bolt 2 without affecting the movement of the length adjusting bolt 2, the clamping member 5 is a stepped plastic block, provided at the end of the length adjusting bolt 2, the distance between each step of the stepped plastic block adapts to copper bars of different specifications, in addition, as Figure 6 As shown, the stepped plastic block can be slightly tilted to obtain a more sufficient clamping force; a rubber pad 7 is provided on the surface of the stepped plastic block. In this embodiment, the depth of the through groove 6 is 10 mm.

[0036] When using the above-mentioned ship power distribution cabinet fastener, the stepped plastic block clamps one side of the copper busbar 8, the mutual inductor 9 is snapped into the through slot 6, the slider 32 is adjusted, and the screw 33 is used to match the threaded blind hole 34 to tighten the fixed slider 32 so that the main body 1 of the ship power distribution cabinet fastener and the mutual inductor 9 are locked. Use another ship power distribution cabinet fastener and install it on the other side of the copper busbar 8 in the same way. Rotate the length adjustment bolt 2 and fix the mutual inductor 9 by relying on the extrusion force between the length adjustment bolt 2 and the copper busbar 8 and the elastic force of the stepped plastic block.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, making several improvements without departing from the technical principles of the present invention should be regarded as within the scope of protection of the present invention.

Claims

1. A transformer fastener for a ship's power distribution cabinet, comprising a body and a length adjustment bolt, characterized in that: The main body is a clamping block with a through slot, the depth of the through slot is above 5 mm, and an extrusion piece or a clamping piece is provided at the end of the length adjustment bolt.

2. The mutual inductor fastener for a ship power distribution cabinet according to claim 1, characterized in that: The main body is further provided with a limiting member, which extends to the through slot.

3. The transformer fastener for a ship power distribution cabinet according to claim 2, characterized in that: The limiting member is a fastening bolt or a sliding block.

4. The transformer fastener for a ship power distribution cabinet according to claim 1, characterized in that: A rubber pad is provided on the surface of the through groove.

5. The transformer fastener for a ship power distribution cabinet according to claim 1, characterized in that: The extrusions are plastic feet or rubber blocks.

6. The mutual inductor fastener for a ship power distribution cabinet according to claim 1, characterized in that: The clamping member is a plastic clamp or a stepped plastic block.

7. The transformer fastener for a ship power distribution cabinet according to claim 5, characterized in that: The surface of the plastic foot is provided with a rubber pad.

8. The transformer fastener for a ship power distribution cabinet according to claim 6, characterized in that: The surface of the plastic pliers or the stepped plastic block is provided with a rubber pad.

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