Electrical component fixing device and vehicle-mounted energy storage device

Abstract

The utility model discloses an electrical element fixing device and vehicle-mounted energy storage equipment relates to energy storage equipment technical field, and electrical element fixing device includes guide rail and at least one end piece in electrical element end part, every end piece includes clamp hook and two respectively fixedly installed in the both sides of clamp hook, and the both sides of guide rail's two opposite sides are provided with the turn -up of bending, and the turn -up is pressed in the clamp hook, and the clamp hook is connected with the turn -up, and the vertical displacement of end piece is limited, prevents end piece from moving up and down relative to guide rail. The clamp hook is provided with locking screw, and the locking screw is opposite to the turn -up, and the horizontal displacement of end piece is restricted, avoids end piece relative to guide rail horizontal movement. The utility model adopts the fixed mode that the clamp hook is connected and the screw abuts each other to be combined, and the end piece is restricted in vertical direction and horizontal direction simultaneously, makes end piece be able to stably and reliably fixed on guide rail, ensures that the fixation of each electrical element is more reliable.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an electrical component fixing device and a vehicle-mounted energy storage device. Background Technology

[0002] Electric vehicles, electric ships, and rail transit systems are typically equipped with onboard energy storage devices. These devices store electrical energy through battery packs, providing sustained power for long-distance travel. The combiner cabinets and high-voltage boxes of these onboard energy storage devices contain electrical components such as contactors, fuses, and relays. These components are mounted via guide rails to ensure a compact layout and easy maintenance. However, existing guide rails only constrain the components vertically, preventing them from detaching, but cannot effectively restrict their horizontal movement. To address the horizontal freedom issue, end plates are typically added to the ends or middle of the guide rails, using clamping structures to restrict the lateral displacement of the electrical components.

[0003] Traditional terminal plates often employ elastic clamping designs, such as metal spring plates. These plates rely on the friction generated by the deformation of the metal spring plate to resist only minor vibrations and are only suitable for static scenarios. However, metal spring plates are prone to elastic fatigue due to repeated vibrations, causing the clamping force to gradually decrease. In a vehicle environment, continuous acceleration in the width direction is generated when the vehicle is moving, braking, or experiencing bumps, causing traditional terminal plates to loosen due to insufficient elasticity. This leads to displacement of electrical components and unreliable fixation of various electrical components. Utility Model Content

[0004] The purpose of this utility model is to provide an electrical component fixing device and a vehicle-mounted energy storage device. It adopts a fixing method that combines hook and screw engagement to constrain the end piece in both the vertical and horizontal directions, thus solving the technical problem of unreliable fixing of existing electrical components.

[0005] To achieve the above objectives, this utility model provides an electrical component fixing device, including a guide rail and at least one end piece located at the end of the electrical component; each end piece includes a pressure plate and two hooks respectively fixed on both sides of the pressure plate; the two opposite sides of the guide rail are bent with flanges, the pressure plate presses against the flanges, and the hooks engage with the flanges; the pressure plate is provided with a locking screw, which abuts against the flanges.

[0006] In some embodiments, the side of the hook facing the flange has an anti-slip protrusion that abuts against the flange.

[0007] In some embodiments, the outer side of at least one hook includes an angled bottom side and an inclined surface. The bottom side is parallel to the pressure plate, and the bottom side and the inclined surface are smoothly connected by an arc surface. The arc surface and the inclined surface are connected to form an inlet surface, which is used to guide the flange into the hook.

[0008] In some embodiments, the end piece includes a baffle perpendicularly connected to the pressure plate. The baffle has a plurality of raised ribs on the side facing the electrical component. All the raised ribs abut against the end of the electrical component and are linearly distributed along the width direction of the guide rail. The thickness of the raised ribs gradually decreases along the thickness direction of the guide rail.

[0009] In some embodiments, a reinforcing rib is provided between the baffle and the pressure plate, and the reinforcing rib is located on the side of the baffle away from the electrical components.

[0010] In some embodiments, each end piece is detachably provided with an extension plate at the end away from the guide rail, the extension plate extending along the width direction of the guide rail; the extension plate abuts against the end of the electrical component;

[0011] A pressing strip is detachably installed between the extension plates of adjacent end plates, the pressing strip extending along the length of the guide rail; the pressing strip abuts against the top of the electrical component.

[0012] In some embodiments, the extension plate is a split structure, and the extension plate includes a left extension piece and a right extension piece symmetrically disposed on two opposite sides of the baffle.

[0013] Both the left and right extension pieces have an integral connecting part on one side, and the connecting part and the baffle are provided with a matching side latch and a side latch hole.

[0014] Both the left and right extension pieces have a support portion bent on the other side, and the support portion and the pressing strip are provided with a top locking pin and a top locking hole that cooperate with each other.

[0015] In some embodiments, the pressing strip is provided with a plurality of fixing holes, all of which are arranged linearly along the length of the guide rail; the top of the extension plate is bent to provide a support portion, and a fastening bolt is provided through the support portion. The fastening bolt is selected to cooperate with the fixing hole, and the fastening bolt is equipped with a fastening nut, which abuts against the edge of the fixing hole.

[0016] In some embodiments, the pressing strip is provided with a waist-shaped hole, all of which extend along the length of the guide rail; the top of the extension plate is bent to provide a support portion, the support portion is provided with a connecting bolt, the connecting bolt passes through the waist-shaped hole, the connecting bolt is provided with a connecting nut, and the connecting nut abuts against the edge of the waist-shaped hole.

[0017] This utility model also provides an on-board energy storage device, including the above-mentioned electrical component fixing device.

[0018] Compared to the prior art, this utility model designs an electrical component fixing device, including a guide rail and at least one end piece. Each end piece includes a pressure plate and hooks fixed on both sides of the pressure plate. The pressure plate presses against the flanges on both sides of the guide rail, and the hooks engage with the flanges to restrict the vertical displacement of the end piece and prevent the end piece from moving up and down relative to the guide rail. In addition, a locking screw passes through the pressure plate, and the locking screw abuts against the flange to constrain the horizontal displacement of the end piece and prevent the end piece from moving horizontally relative to the guide rail.

[0019] This utility model adopts a fixing method that combines hook and screw engagement to constrain the end piece in both the vertical and horizontal directions, so that the end piece can be stably and reliably fixed on the guide rail, ensuring more reliable fixing of each electrical component. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the electrical component fixing device provided in the first embodiment of the present invention;

[0022] Figure 2 for Figure 1 Structural diagram of the mid-range chip;

[0023] Figure 3 for Figure 2 Side view;

[0024] Figure 4 for Figure 2 Another structural diagram;

[0025] Figure 5 for Figure 4 A magnified view of part A in the image;

[0026] Figure 6 for Figure 2 The main view;

[0027] Figure 7 for Figure 1 A diagram showing the state of the guide rail when the end piece is not installed;

[0028] Figure 8 for Figure 1 A diagram showing the state of the guide rail when the end piece is installed;

[0029] Figure 9 for Figure 8 A magnified view of part B in the image;

[0030] Figure 10 A state diagram of the electrical component fixing device provided in the second embodiment of this utility model when fixing electrical components;

[0031] Figure 11 This is a structural diagram of the electrical component fixing device provided in the second embodiment of the present utility model;

[0032] Figure 12 for Figure 11 Exploded view of the remaining components after removing the guide rails;

[0033] Figure 13 A structural diagram of the pressing strip of the electrical component fixing device provided in the third embodiment of this utility model;

[0034] Figure 14 This is a structural diagram of the pressing strip of the electrical component fixing device provided in the fourth embodiment of the present utility model.

[0035] The attached figures are labeled as follows:

[0036] 1. Guide rail; 2. Electrical components; 3. End piece; 4. Locking screw; 5. Extension plate; 6. Pressing strip;

[0037] Flip-edge 11;

[0038] Pressure plate 31, hook 32, baffle 33 and reinforcing rib plate 34;

[0039] Anti-slip protrusions 321, bottom side 322, inclined surface 323, and arc surface 324;

[0040] Protruding ribs 331 and side locking pins 332;

[0041] Left extension piece 51, right extension piece 52, connecting part 53 and supporting part 54;

[0042] Side card slot 531;

[0043] Top locking pin 541;

[0044] Top locking hole 61, fixing hole 62 and waist-shaped hole 63. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] This utility model discloses an electrical component fixing device, as shown in the attached figure. Figure 1 As shown, it includes a guide rail 1 and at least one end piece 3, with the end piece 3 located at the end of the electrical component 2. Specifically, an end piece 3 is installed at each end of the electrical component 2. The electrical component 2 mentioned in the text can be a contactor, fuse, relay, etc.

[0048] In the first specific embodiment, as shown in the appendix Figures 2 to 4 As shown, each end piece 3 includes a pressure plate 31 and two hooks 32 respectively fixed on both sides of the pressure plate 31. (See attached diagram) Figure 1 and 7 As shown, the guide rail 1 has flanges 11 bent on two opposite sides. The pressure plate 31 presses against the flanges 11, and the hooks 32 engage with the flanges 11, as shown in the attached figure. Figure 8 As shown, the vertical displacement of the end piece 3 is restricted to prevent the end piece 3 from moving up and down relative to the guide rail 1.

[0049] Specifically, two hooks 32 are integrally mounted on both sides of the pressure plate 31. Each hook 32 is L-shaped and includes a vertical plate perpendicularly connected to the pressure plate 31 and a snap-fit ​​plate perpendicularly connected to the vertical plate. A U-shaped groove is formed between the snap-fit ​​plate and the pressure plate 31, and the U-shaped groove engages with the flange 11. The guide rail 1 is fixed to the mounting plate, which is fixed inside the combiner cabinet and high-voltage box. The guide rail 1 includes a fixed plate and two support plates fixed to both sides of the fixed plate. The fixed plate is fixed to the mounting plate, and both support plates are perpendicular to the fixed plate. Both support plates are bent to have flanges 11, which are perpendicular to the support plates.

[0050] As attached Figure 1 , 8 As shown in Figure 9, a locking screw 4 is inserted through the pressure plate 31. When the locking screw 4 is tightened, it abuts against the flange 11, constraining the horizontal displacement of the end piece 3 and preventing it from moving horizontally relative to the guide rail 1. Conversely, when the locking screw 4 is loosened, the end piece 3 can slide along the guide rail 1, flexibly adjusting the position of the electrical component 2. Specifically, threaded holes are provided on both sides of the pressure plate 31, and the locking screw 4 is threaded into the threaded holes. The locking screw 4 is fitted with a washer. When the locking screw 4 is tightened, the washer abuts against the edge of the threaded hole, increasing the friction between the locking screw 4 and the pressure plate 31, preventing the locking screw 4 from loosening and ensuring that the electrical component 2 is reliably fixed.

[0051] In summary, this utility model adopts a fixing method that combines hook 32 snap-fit ​​and screw abutment to constrain the end piece 3 in both the vertical and horizontal directions, so that the end piece 3 can be stably and reliably fixed on the guide rail 1, and the fixing of each electrical component 2 is more reliable.

[0052] In the first specific embodiment, the hook 32 has an anti-slip protrusion 321 on the side facing the flange 11, as shown in the attached figure. Figure 5 As shown, the anti-slip protrusion 321 abuts against the flange 11, increasing the friction between the hook 32 and the flange 11, effectively preventing the hook 32 from accidentally slipping or loosening along the flange 11 under vibration or external force, allowing the end piece 3 to withstand load impacts in a vehicle environment. Furthermore, the contact surface between the anti-slip protrusion 321 and the flange 11 forms additional support points, dispersing the stress at the connection part 53, reducing the risk of plastic deformation during long-term use, and extending the service life of the end piece 3. Specifically, all the anti-slip protrusions 321 are evenly distributed along the length of the guide rail 1.

[0053] In the first specific embodiment, as shown in the appendix Figure 6 As shown, at least one hook 32 has an outer surface including a bottom surface 322 and an inclined surface 323 arranged at an angle. The bottom surface 322 is parallel to the pressure plate 31, and the bottom surface 322 and the inclined surface 323 are smoothly connected by an arc surface 324. The arc surface 324 and the inclined surface 323 are connected to form an inlet surface, which is used to guide the flange 11 into the hook 32, as shown in the attached figure. Figure 7 and 8 As shown, this reduces the installation difficulty between guide rail 1 and end piece 3.

[0054] In a first specific embodiment, the end piece 3 includes a baffle 33 perpendicularly connected to the pressure plate 31. The baffle 33 has several raised ribs 331 on the side facing the electrical component 2, as shown in the attached figure. Figure 2 and 3 As shown, all the raised ribs 331 abut against the end of the electrical component 2, and all the raised ribs 331 are linearly distributed along the width direction of the guide rail 1; along the thickness direction of the guide rail 1, the thickness of the raised ribs 331 gradually decreases, that is, the side of the raised ribs 331 facing the electrical component 2 is an inclined surface 323, so that a small amount of interference is formed between the baffle 33 and the electrical component 2, increasing the friction between the baffle 33 and the electrical component 2, so as to adapt to the high vibration conditions under vehicle conditions.

[0055] In a first specific embodiment, a reinforcing rib 34 is provided between the baffle 33 and the pressure plate 31, as shown in the attached figure. Figure 3 and 4As shown, the reinforcing rib 34 is located on the side of the baffle 33 away from the electrical component 2, forming a triangular support structure at the right-angle connection between the baffle 33 and the pressure plate 31. This effectively disperses external loads and reduces stress concentration at the right-angle connection, resisting bending deformation caused by impact or vibration under vehicle load conditions. The reinforcing rib 34 is fixed between the baffle 33 and the pressure plate 31 using welding, riveting, or integral molding processes to prevent cracking or loosening at the connection.

[0056] Compared to the first embodiment, the second embodiment changes the structure of the end piece 3.

[0057] In the second specific embodiment, to improve reliability, the end piece 3 is further provided with an extension plate 5 and a pressing strip 6, as shown in the attached figure. Figure 10 and 11 As shown, this is to accommodate electrical components that are tall or large in size.

[0058] In the second specific embodiment, as shown in the appendix Figure 10 As shown, each end piece 3 has a detachable extension plate 5 at the end furthest from the guide rail 1. The extension plate 5 extends along the width direction of the guide rail 1. The extension plate 5 abuts against the end of the electrical component 2, increasing the contact area between the end piece 3 and the electrical component 2, effectively constraining the horizontal displacement of the electrical component 2 and preventing horizontal movement of the electrical component 2. A pressing strip 6 is detachably installed between the extension plates 5 of adjacent end pieces 3. The pressing strip 6 extends along the length direction of the guide rail 1 and abuts against the top of the electrical component 2, constraining the vertical displacement of the electrical component 2 and preventing vertical movement of the electrical component 2 relative to the guide rail 1. In this utility model, both the extension strip and the pressing strip are detachable, allowing for installation according to the specifications of the electrical component 2, resulting in better adaptability. By adding the extension plate 5 and the pressing strip, the movement of the electrical component 2 relative to the guide rail 1 in both horizontal and vertical directions is restricted, ensuring more reliable fixation of the electrical component 2. Specifically, each end piece 3 is equipped with an extension plate 5, and two pressing strips 6 are installed between the extension plates 5 of adjacent end pieces 3.

[0059] In the second specific embodiment, as shown in the appendix Figure 11 and 12 As shown, the extension plate 5 is a split structure, comprising a left extension piece 51 and a right extension piece 52 symmetrically arranged on opposite sides of the baffle 33, which respectively abut against the two sides of the electrical component 2. Specifically, the left extension piece 51 and the right extension piece 52 have the same structure. The left extension piece 51 includes a stop portion and a connecting portion 53. The stop portion abuts against the end of the electrical component 2, and the connecting portion 53 is detachably connected to the baffle 33. Both the stop portion and the connecting portion 53 are rectangular plates, and the apex corners of the connecting portion 53 and the stop portion are connected. Of course, the extension plate 5 can also be a one-piece structure, which is not specifically limited here.

[0060] In the second specific embodiment, as shown in the appendix Figures 10 to 12 As shown, each pressing strip 6 is integrally formed with reinforcing ribs, which extend along the length of the guide rail 1 to improve the bending strength of the pressing strip 6, so as to adapt to the high vibration conditions in the vehicle environment and ensure that the electrical components 2 are stable and do not loosen under vibration.

[0061] In the second specific embodiment, the extension plate 5 and the baffle 33 are snap-fitted together, and the pressing strip 6 and the extension plate 5 are also snap-fitted together, which facilitates the disassembly of the extension plate 5 and the pressing strip 6.

[0062] As attached Figure 11 and 12 As shown, both the left extension piece 51 and the right extension piece 52 have an integrally formed connecting portion 53 on one side. The connecting portion 53 and the baffle 33 are provided with a matching side latch 332 and a side latch hole 531, facilitating the assembly and disassembly of the extension plates 5. Specifically, the side latch 332 is a circumferential pin integrally formed on the baffle 33, and the side latch hole 531 is a circumferential hole located in the connecting portion 53. Of course, interchangeable positions of the side latch 332 and the side latch hole 531 do not affect the objective of this invention.

[0063] As attached Figure 11 and 12 As shown, both the left extension piece 51 and the right extension piece 52 have a support portion 54 bent on their other side. The support portion 54 and the pressing strip 6 are provided with a top locking pin 541 and a top locking hole 61 that cooperate with each other, facilitating the installation and removal of the pressing strip 6. Specifically, the top locking pin 541 is a circumferential pin integrally formed on the support portion 54, and the top locking hole 61 is a circumferential hole provided on the pressing strip 6. Of course, interchangeable positions of the top locking pin 541 and the top locking hole 61 do not affect the purpose of this utility model.

[0064] In addition to the snap-fit ​​connection, the pressing strip 6 and the extension plate 5 are connected by threads, and multiple connection positions are set on the pressing strip 6. The installation position can be flexibly adjusted according to the actual length of the electrical component 2, which can be compatible with electrical components 2 of different specifications and effectively improve adaptability.

[0065] Compared to the second embodiment, the third embodiment changes the structure of the pressing strip 6.

[0066] In the third specific embodiment, the pressing strip 6 is provided with a plurality of fixing holes 62, as shown in the attached figure. Figure 13 As shown, all the fixing holes 62 are arranged linearly along the length of the guide rail 1, and all the fixing holes 62 are distributed at equal intervals; the top of the extension plate 5 is bent to provide a support part 54, and a fastening bolt is passed through the support part 54. The fastening bolt is selected to cooperate with the fixing hole 62, and the fastening bolt is equipped with a fastening nut. The fastening nut abuts against the edge of the fixing hole 62, so that the pressing strip 6 is reliably fixed on the extension plate 5.

[0067] Compared to the second embodiment, the fourth embodiment changes the structure of the pressing strip 6.

[0068] In the fourth specific embodiment, the pressing strip 6 is provided with a waist-shaped hole 63, as shown in the attached figure. Figure 14 As shown, all the waist-shaped holes 63 extend along the length of the guide rail 1; the top of the extension plate 5 is bent to provide a support part 54, the support part 54 is provided with a connecting bolt, the connecting bolt passes through the waist-shaped hole 63, the connecting bolt is equipped with a connecting nut, the connecting nut abuts against the edge of the waist-shaped hole 63, which can also ensure that the pressing strip 6 is reliably fixed on the extension plate 5.

[0069] This utility model also provides an on-board energy storage device, including the above-mentioned electrical component fixing device, which has the same beneficial effects.

[0070] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0071] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An electrical component fixing device, characterized in that, It includes a guide rail (1) and at least one end piece (3) located at the end of an electrical component (2); each end piece (3) includes a pressure plate (31) and two hooks (32) respectively fixed on both sides of the pressure plate (31); the guide rail (1) is bent with flanges (11) on two opposite sides, the pressure plate (31) presses against the flanges (11), and the hooks (32) engage with the flanges (11); the pressure plate (31) is provided with a locking screw (4), and the locking screw (4) abuts against the flanges (11).

2. The electrical component fixing device according to claim 1, characterized in that, The hook (32) has an anti-slip protrusion (321) on the side facing the flange (11), and the anti-slip protrusion (321) abuts against the flange (11).

3. The electrical component fixing device according to claim 1, characterized in that, At least one of the hooks (32) has an outer side surface including a bottom side surface (322) and an inclined surface (323) set at an angle. The bottom side surface (322) is parallel to the pressure plate (31). The bottom side surface (322) and the inclined surface (323) are smoothly connected by an arc surface (324). The arc surface (324) and the inclined surface (323) are connected to form an inlet surface. The inlet surface is used to guide the flange (11) into the hook (32).

4. The electrical component fixing device according to any one of claims 1 to 3, characterized in that, The end piece (3) includes a baffle (33) perpendicularly connected to the pressure plate (31). The baffle (33) has a plurality of raised ribs (331) on the side facing the electrical component (2). All the raised ribs (331) abut against the end of the electrical component (2), and all the raised ribs (331) are linearly distributed along the width direction of the guide rail (1). Along the thickness direction of the guide rail (1), the thickness of the raised ribs (331) gradually decreases.

5. The electrical component fixing device according to claim 4, characterized in that, A reinforcing rib (34) is provided between the baffle (33) and the pressure plate (31), and the reinforcing rib (34) is located on the side of the baffle (33) away from the electrical component (2).

6. The electrical component fixing device according to claim 4, characterized in that, Each of the end pieces (3) has an extension plate (5) detachably provided at one end away from the guide rail (1), the extension plate (5) extending along the width direction of the guide rail (1); the extension plate (5) abuts against the end of the electrical component (2); A pressing strip (6) is detachably installed between the extension plates (5) of two adjacent end pieces (3), the pressing strip (6) extending along the length direction of the guide rail (1); the pressing strip (6) abuts against the top of the electrical component (2).

7. The electrical component fixing device according to claim 6, characterized in that, The extension plate (5) is a split structure, and the extension plate (5) includes a left extension piece (51) and a right extension piece (52) respectively symmetrically arranged on two opposite sides of the baffle (33). Both the left extension piece (51) and the right extension piece (52) have a connecting part (53) integrally provided on one side. The connecting part (53) and the baffle (33) are provided with a side latch (332) and a side latch hole (531) that cooperate with each other. The left extension piece (51) and the right extension piece (52) are both bent on the other side and have a support part (54). The support part (54) and the pressing strip (6) are provided with a top locking pin (541) and a top locking hole (61) that cooperate with each other.

8. The electrical component fixing device according to claim 6, characterized in that, The pressing strip (6) is provided with a plurality of fixing holes (62), all of which are arranged linearly along the length of the guide rail (1); the top of the extension plate (5) is bent to provide a support part (54), the support part (54) is provided with a fastening bolt, one of which is matched with the fixing hole (62), the fastening bolt is provided with a fastening nut, and the fastening nut abuts against the edge of the fixing hole (62).

9. The electrical component fixing device according to claim 6, characterized in that, The pressing strip (6) is provided with a waist-shaped hole (63), and all the waist-shaped holes (63) extend along the length direction of the guide rail (1); the top of the extension plate (5) is bent to provide a support part (54), and the support part (54) is provided with a connecting bolt, which passes through the waist-shaped hole (63). The connecting bolt is provided with a connecting nut, and the connecting nut abuts against the edge of the waist-shaped hole (63).

10. A vehicle-mounted energy storage device, characterized in that, Includes the electrical component fixing device as described in any one of claims 1 to 9.

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