High-voltage busbar protection device

Abstract

The utility model discloses a high-voltage busbar protection device, relates to the technical field of connecting devices, and solves the problem of how to effectively fix a busbar and avoid safety accidents. Comprising a sleeve frame and a seat body, the sleeve frame and the seat body enclose to form a mounting cavity for penetration of a power bar, and the mounting cavity fits the shape of the power bar in the length direction; the seat body is supported between the bottom of the electric bar and the installation position of the electric bar, the sleeve frame outer sleeve surrounds the side direction and the top of the electric bar and is detachably connected with the seat body, and the sleeve frame is further fixed to the installation position of the electric bar through a fastener. The support of the seat body to the electric bar ensures that no direct contact exists between the high-voltage electric bar and a fixed position, and the contact area with the high-voltage electric bar is increased through the surrounding protection of the sleeve frame and the fitting arrangement of the mounting cavity, so that the friction between the electric bar and a fixed part caused by vibration and impact is avoided, and the risk of abrasion of an insulating layer is reduced; the detachable connection design of the sleeve frame and the seat body enables the installation and disassembly processes of the electric bar to be more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of connection devices, in particular to a high-voltage power strip protection device. Background Art

[0002] High-voltage busbars play a crucial role in conductive connection systems, ensuring efficient current transmission between target locations. Given the extremely compact internal system space, carefully planned high-voltage busbar layout is crucial to system safety, stability, and overall performance. However, the methods used to secure these busbars carry significant risks. Traditional methods simply use cable ties to bundle the busbars or fasten them to fixed locations. These ties come into direct contact with the busbar's insulation, exerting a constant restraining force on localized areas. During vehicle operation, the inevitable vibration and impact of the vehicle cause subtle but frequent friction between the busbar and the tie. Over time, this repeated friction gradually weakens the busbar's protective insulation, causing wear and even damage to the insulation material. Once the insulation layer is damaged, the exposed busbar could come into unintentional contact with structural components, potentially causing serious electrical hazards such as short circuits and arcing. Summary of the Invention

[0003] Purpose of the present invention: In order to overcome the defects of the prior art, the present invention provides a high-voltage electric bus protection device to solve the problem of how to effectively fix the electric bus and avoid safety accidents.

[0004] The technical solution of the utility model includes a sleeve and a base body, which together form an installation cavity for the power busbar to penetrate, and the installation cavity fits the outer shape of the power busbar in the length direction; the base body is supported between the bottom of the power busbar and the installation position of the power busbar, and the sleeve surrounds the side and top of the power busbar, and is detachably connected to the base body. The sleeve is also fixed to the installation position of the power busbar by fasteners.

[0005] By adopting the above technical solution, the support of the base body for the busbar ensures that there is no direct contact between the high-voltage busbar and the fixed position. The surrounding protection of the sleeve and the fitting setting of the installation cavity increase the contact area with the high-voltage busbar, avoiding friction between the busbar and the fixing parts caused by vibration and impact, thereby reducing the risk of wear of the insulation layer. The detachable connection design of the sleeve and the base body makes the installation and disassembly process of the busbar more convenient.

[0006] In a possible design, the seat body has support parts at both ends in the axial direction, and the sleeve has surrounding parts at both ends in the axial direction. The surrounding parts have fastening parts extending laterally, and the surrounding parts surround the periphery of the support parts, and the fasteners are fixed on the fastening parts.

[0007] With the above design, the supporting part and the surrounding part are arranged at the two axial ends, which means that the high-voltage busbar is firmly supported and protected at both ends in the length direction. Moreover, the surrounding part cooperates with the supporting part, not only covering the side and top of the busbar, but also further fixing it through the fastening part to form a closed protective frame, thereby enhancing the structural rigidity of both ends of the busbar.

[0008] In a possible design, a plurality of cross-shaped reinforcing ribs are integrally provided on the outer surface of the sleeve, and the reinforcing ribs are arranged along the axial direction of the sleeve.

[0009] With the above design, the cross-shaped reinforcement ribs can significantly improve the bending and torsional resistance of the sleeve and enhance its overall structural strength.

[0010] In a possible design, the sleeve frame and the seat body are detachably connected via a snap-fit ​​structure.

[0011] With the above design, when the high-voltage busbar needs to be inspected or replaced, the snap-on structure allows the operator to easily separate the sleeve and the seat, simplifying the installation and maintenance process and saving time and labor costs.

[0012] In a possible design, the snap-fit ​​structure includes an oblique protrusion and a snap-fit ​​hole, and the oblique protrusion and the snap-fit ​​hole form a snap-fit ​​connection.

[0013] With the above design, the oblique protrusions and the card holes have an automatic positioning effect, which can guide the sleeve and the seat to be correctly aligned, reduce errors in the assembly process, and ensure that each installation is accurate and in place.

[0014] In a possible design, the mounting cavity has a height equal to the thickness of two busbars so as to allow two stacked busbars to pass through.

[0015] The above design saves space in the vertical direction by stacking the busbars, thereby providing more installation locations for other components and making the overall design more compact.

[0016] In one possible design, the sleeve frame and the base body are respectively integrally provided with an upper blocking portion and a lower blocking portion, and the upper blocking portion and the lower blocking portion are respectively located in the installation cavity. The upper blocking portion protrudes from the sleeve frame toward the direction close to the lower layer of the electric bus and is limited by the end of the upper layer of the electric bus. The lower blocking portion protrudes from the base body toward the direction close to the upper layer of the electric bus and is limited by the end of the lower layer of the electric bus.

[0017] With the above design, the upper blocking portion and the lower blocking portion can respectively abut against the ends of the upper and lower busbars, ensuring the accurate position of the busbars in the installation cavity, preventing the busbars from being displaced under vibration or external force, and providing a precise limiting effect. In addition, the ends of the upper and lower busbars can be contacted and connected in the installation cavity, making the sleeve and the base body a structure that protects the connection position of the two, and has a wider range of uses.

[0018] In a possible design, an operating hole is opened on the sleeve frame, and a top cover is detachably mounted on the operating hole.

[0019] The above design allows necessary installation and maintenance to be carried out through the operation hole with only the top cover removed, reducing the tedious work of large-scale disassembly of the entire unit and improving the efficiency of on-site operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a specific embodiment of the present invention;

[0021] Figure 2 This is a structural diagram of a second specific embodiment of the present utility model;

[0022] Figure 3 This is a cross-sectional view of a second specific embodiment of the present utility model;

[0023] Figure 4 This is an exploded view of the second specific embodiment of the present utility model;

[0024] Figure 5 This is a schematic structural diagram of a third specific embodiment of the present utility model;

[0025] Figure 6 This is an exploded view of the third specific embodiment of the present invention.

[0026] Among them, 1, sleeve frame; 11, surrounding part; 12, fastening part; 13, reinforcing rib; 14, upper blocking part; 15, operation hole; 16, top cover;

[0027] 2. seat body; 21. support portion; 22. lower blocking portion;

[0028] 3. Installation cavity;

[0029] 4. Electricity strip;

[0030] 5. Fasteners;

[0031] 6. Snap-fit ​​structure; 61. Oblique protrusion; 62. Snap-fit ​​hole. DETAILED DESCRIPTION Example 1

[0032] like Figure 1The high-voltage electric bus protection device shown includes a housing 1 and a base 2. The inner sides of the housing 1 and the base 2 together form a mounting cavity 3 for a bus 4 to pass through. The mounting cavity 3 conforms to the outer shape of the bus 4 in the axial length direction. The base 2 is supported between the bottom of the bus 4 in the thickness direction and the mounting position of the bus 4. The outer sleeve of the housing 1 surrounds the sides in the width direction and the top in the thickness direction of the bus 4. The housing 1 and the base 2 are detachably connected. The housing 1 is also fixed to the mounting position of the bus 4 by fasteners 5. When installing the bus 4, first place the base 2 in the target mounting position, then place the bus 4 on top of the base 2, then cover the bus 4 with the housing 1, and fix the housing 1 to the base 2. Finally, tighten the fasteners 5 to fix the housing 1 in the mounting position. Of course, the bus 4 can also be directly passed through the mounting cavity 3 of the assembled housing 1 and base 2.

[0033] The two ends of the base body 2 in the axial direction have support portions 21, and the support portions 21 are thicker than the middle portion of the base body 2; the two ends of the sleeve 1 in the axial direction have surrounding portions 11, and the surrounding portions 11 have fastening portions 12 extending laterally. The surrounding portions 11 surround both sides of the outer periphery of the support portion 21, and the fasteners 5 are fixed on the fastening portions 12. The fastening portion 12 is located on the sleeve 1 rather than the base body 2, which helps to effectively fix the electric bus 4. If the installation position is located on the base body 2 through the fastening portion 12, the vibration is transmitted to the base body 2, and the sleeve 1 is abnormally detached due to the vibration, causing the electric bus 4 to be dislodged and fail to be fixed. Therefore, the fastening portion 12 is set on the sleeve 1. Even if the base body 2 is detached due to vibration, the sleeve 1 can still limit the electric bus 4, ensuring that the electric bus 4 will not completely fall out due to the instability of the base body 2, and the limiting position of the electric bus 4 is maintained.

[0034] The outer surface of the sleeve 1 is integrally provided with a plurality of cross-shaped reinforcing ribs 13, which are arranged along the axial direction of the sleeve 1. The cross-shaped reinforcing ribs 13 help to enhance the structural strength of the sleeve 1 in the length and width directions of the sleeve 1 and improve the fixing effect of the sleeve 1.

[0035] The housing 1 and base 2 are removably connected via several snap-fit ​​structures 6. Specifically, these snap-fit ​​structures 6 comprise an oblique projection 61 and a snap-fit ​​hole 62, which form a snap-fit ​​connection. The oblique projection 61 is located on the housing 1, while the snap-fit ​​hole 62 is located on the base 2. To ensure secure attachment, the oblique projection 61 is also located on the base 2, and the snap-fit ​​hole 62 is also located on the housing 1. The snap-fit ​​structures 6 primarily prevent the base 2 from disengaging along its length and guide the housing 1 and base 2 into proper alignment.

[0036] The fastener 5 can be a threaded member such as a screw or a bolt. Example 2

[0037] Unlike the first embodiment, the mounting cavity 3 has a height equal to the thickness of two or more busbars 4, allowing two or more stacked busbars 4 to fully penetrate. Taking two busbars 4 as an example, the two busbars 4 are stacked along the thickness direction, with the upper busbar 4 contacting the housing 1 and the lower busbar 4 contacting the base 2. This allows multiple busbars 4 to be secured and protected by only one housing 1 and base 2, requiring less space and saving costs. Example 3

[0038] What is different from the second embodiment is that the electric bus 4 only penetrates into the installation cavity 3 and does not completely pass through the installation cavity 3. Specifically, the sleeve 1 and the base body 2 are respectively provided with an upper blocking portion 14 and a lower blocking portion 22. The upper blocking portion 14 and the lower blocking portion 22 are respectively located in the installation cavity 3. The upper blocking portion 14 protrudes from the sleeve 1 toward the direction close to the lower electric bus 4 and is limited by the end of the upper electric bus 4. The lower blocking portion 22 protrudes from the base body 2 toward the direction close to the upper electric bus 4 and is limited by the end of the lower electric bus 4. The upper electric bus 4 penetrates until it reaches the upper blocking portion 14, and the lower electric bus 4 penetrates until it reaches the lower blocking portion 22. The ends of the upper electric bus 4 and the lower electric bus 4 can be in contact and connected in the installation cavity 3, realizing electrical transmission between the upper electric bus 4 and the lower electric bus 4. Therefore, this embodiment can also be used as a fixed protective device for the connection position of the electric bus 4. In addition, the bottom surface of the upper blocking portion 14 contacts the outer surface of the lower layer busbar 4, thereby limiting the position of the lower layer busbar 4 and guiding the lower layer busbar 4 into the installation cavity 3; similarly, the lower blocking portion 22 corresponds to limiting and guiding the upper layer busbar 4.

[0039] To facilitate tightening the contact connection, an operating hole 15 is provided on the housing 1. A removable cover 16 is mounted on the operating hole 15. After removing the cover 16, a tool is inserted into the operating hole 15 to tighten or maintain the connection, thereby ensuring a secure connection between the two busbars 4.

Claims

1. High voltage electric row protection device, characterized by: The invention comprises a sleeve (1) and a base (2), wherein the sleeve (1) and the base (2) together form an installation cavity (3) for a power bar (4) to penetrate, and the installation cavity (3) fits the outer shape of the power bar (4) in the length direction; the base (2) is located below the power bar and supported between the power bar (4) and the installation position of the power bar (4); the sleeve (1) surrounds the side and top of the power bar (4) and is detachably connected to the base (2); the sleeve (1) is also fixed to the installation position of the power bar (4) by a fastener (5).

2. The high-voltage power strip protection device according to claim 1, characterized in that: The seat body (2) has support portions (21) at both ends in the axial direction, and the sleeve frame (1) has surrounding portions (11) at both ends in the axial direction. The surrounding portion (11) has a fastening portion (12) extending laterally. The surrounding portion (11) surrounds the periphery of the support portion (21), and the fastener (5) is fixed to the fastening portion (12).

3. The high-voltage power strip protection device according to claim 1 or 2, characterized in that: The outer surface of the sleeve (1) is integrally provided with a plurality of cross-shaped reinforcing ribs (13), and the reinforcing ribs (13) are arranged along the axial direction of the sleeve (1).

4. The high-voltage power strip protection device according to claim 1 or 2, characterized in that: The sleeve frame (1) and the seat body (2) are detachably connected via a snap-fit ​​structure (6).

5. The high-voltage power strip protection device according to claim 4, characterized in that: The buckle structure (6) comprises an oblique protrusion (61) and a clamping hole (62), and the oblique protrusion (61) and the clamping hole (62) form a clamping connection.

6. The high-voltage power strip protection device according to claim 1 or 2, characterized in that: The mounting cavity (3) has a height equal to the thickness of two electric bars (4) so ​​as to allow two stacked electric bars (4) to penetrate.

7. The high-voltage power strip protection device according to claim 6, characterized in that: The sleeve (1) and the seat (2) are respectively provided with an upper blocking portion (14) and a lower blocking portion (22), and the upper blocking portion (14) and the lower blocking portion (22) are respectively located in the installation cavity (3). The upper blocking portion (14) protrudes from the sleeve (1) toward the lower layer of the electric bus (4) and is abutted against the end of the upper layer of the electric bus (4) for limiting position. The lower blocking portion (22) protrudes from the seat (2) toward the upper layer of the electric bus (4) and is abutted against the end of the lower layer of the electric bus (4) for limiting position.

8. The high-voltage power strip protection device according to claim 7, characterized in that: An operating hole (15) is provided on the sleeve frame (1), and a top cover (16) is detachably mounted on the operating hole (15).

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