Backpack battery fixed cable mounting structure

Abstract

This utility model provides a backpack battery fixing cable mounting structure, relating to the field of backpack batteries, including: a backpack battery, including a shell; a cable fixing assembly, including a fixing base and a pressure block, the fixing base having an arc-shaped protrusion, the lower end of the arc-shaped protrusion having a mounting surface, the mounting surface being inclined, and a wire through hole being opened on the mounting surface; a first wire groove being provided in the fixing base, and a second wire groove being provided on the pressure block, the first wire groove and the second wire groove forming a cable channel, the cable channel being curved forward to form a first anti-tension structure, and the cable channel having protrusions or ridges forming a second anti-tension structure; a cable, disposed in the cable channel, the second end of the cable extending outside the fixing base to form a free end, the free end having an electrical connector forming a suspended connection end. This utility model backpack battery fixing cable mounting structure is simple and compact in structure, has high connection strength and strong tensile strength, good performance, and low manufacturing and maintenance costs.

Description

Technical Field

[0001] This utility model relates to a backpack battery, and more particularly to a fixed cable mounting structure for a backpack battery. Background Technology

[0002] Backpack batteries are portable power devices that integrate battery packs into the structure of a backpack for users to carry and move around. They are widely used in scenarios such as vibration, power tools, outdoor work, and emergency rescue.

[0003] In practical applications, the cables connecting backpack batteries and external devices are often subjected to multi-directional and irregular tensile forces due to user movement or device vibration. To alleviate the problem of concentrated stress on the cables when subjected to lateral tensile forces, some existing backpack batteries have a rotating base at the rear of the backpack. This rotating base is a protruding structure that can rotate left and right, with the cables located below it. When the cables are subjected to lateral tensile forces, the rotating base can rotate accordingly, thereby reducing the lateral bending moment borne by the cable root to some extent.

[0004] However, this structure still has significant shortcomings. First, the rotating base can only accommodate lateral tension. When the cable is subjected to backward tension, the direction of the tension forms a lever arm with the rotation axis of the rotating base, causing the rotating base itself to bear a significant bending moment. Prolonged or repeated stress can easily lead to structural damage, jamming, or even breakage of the rotating base. Second, when the backpack battery is placed upside down, its weight directly affects the rotating base due to its overall weight, easily causing overload damage.

[0005] The aforementioned problems not only reduce the reliability of backpack batteries, but also significantly increase the maintenance frequency and cost of the rotating base and related connecting structures. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a backpack battery fixing cable installation structure that is simple and compact, has high connection strength, strong tensile strength, good performance, and low manufacturing and maintenance costs.

[0007] This utility model provides a backpack battery fixing cable mounting structure, which includes: Backpack battery 1, including casing; A cable fixing assembly includes a fixing base 2 disposed at the rear end of the housing and a pressure block 3 disposed within the fixing base 2. The fixing base 2 has an arc-shaped protrusion 22 protruding from the rear end of the housing. The lower end of the arc-shaped protrusion 22 has a mounting surface 23, which is a downward and rearward inclined surface. A wire through hole 230 is opened on the mounting surface 23. The fixing base 2 has a forward-facing first wire groove 221, and the pressure block 3 has a rearward-facing second wire groove 320. The first wire groove 221 and the second wire groove 320 form a cable channel. The cable channel is arc-shaped and forms a first anti-pull structure. The cable channel has protrusions or protrusions 322, which face away from the bending direction of the cable channel and form a second anti-pull structure. Cable 4 is disposed in the cable channel and its outer wall is attached to the inner wall of the cable channel. The first end of cable 4 is connected to the battery cell in the backpack battery 1. The second end of cable 4 passes through the wire hole 230 and extends to the outside of the fixing base 2 to form a free end. An electrical connector 41 is provided on the free end to form a suspended connection end.

[0008] Furthermore, the angle between the mounting surface 23 and the horizontal plane is 5°-20°.

[0009] Furthermore, the angle between the mounting surface 23 and the horizontal plane is 10°.

[0010] Furthermore, the plane containing the mounting surface 23 passes through the center of the arc-shaped protrusion 22.

[0011] Furthermore, the protrusion or the protrusion 322 is disposed within the second groove 320.

[0012] Furthermore, the edge of the arc-shaped protrusion 22 extends radially outward to form a mounting plate 21, and the rear end of the housing is provided with a mounting groove corresponding to the mounting plate 21. A hole 10 is provided in the mounting groove to allow the arc-shaped protrusion 22 to pass through.

[0013] Furthermore, the arc-shaped protrusion 22 has a front-opening mounting cavity formed inside, the first groove 221 is disposed in the mounting cavity, and the mounting cavity has forward-facing mounting posts 24 on both sides, forming a mounting area 220 between the mounting posts 24; the pressure block 3 includes a pressure block body 32, which is disposed in the mounting area 220, and its side walls can contact the mounting posts 24 and achieve limiting; the front sides of the pressure block body 32 extend outward to form mounting portions 31, and mounting holes 311 corresponding to the mounting posts 24 are opened on the mounting portions 31.

[0014] Furthermore, the mounting cavity is provided with a first arc-shaped surface facing forward, and the first groove 221 is formed on the first arc-shaped surface; the pressure block body 32 is provided with a second arc-shaped surface 321 facing backward and able to fit against the first arc-shaped surface, and the second groove 320 is formed on the second arc-shaped surface 321, and the first arc-shaped surface and the second arc-shaped surface have a width difference.

[0015] Furthermore, the bottom surface of the mounting area 220 is provided with a first limiting surface 231, and the bottom surface of the pressing block body 32 is provided with a second limiting surface 323 that can contact the first limiting surface 231. The first limiting surface 231 and the second limiting surface 323 are inclined surfaces and have the same inclination direction as the mounting surface 23.

[0016] Furthermore, the rear end of the arc-shaped protrusion is provided with a wear-resistant protrusion 26, which can contact the ground when the backpack battery 1 is placed with its back facing down.

[0017] Furthermore, the edge of the thread hole 230 is rounded.

[0018] This utility model relates to a fixed cable mounting structure for backpack batteries. It employs a fixed base and a pressure block, eliminating the easily damaged rotating base found in existing technologies. When the cable is subjected to backward tension, the force is directly transmitted to the fixed base and the housing. The cantilevered lever arm structure of the rotating base is eliminated, thus preventing breakage or jamming due to bending moments. Furthermore, since there are no moving parts, the entire weight is directly borne by the housing when the backpack battery is inverted, preventing additional load on the cable fixing components and avoiding the damage caused by the load on existing rotating bases. This utility model's fixed cable mounting structure for backpack batteries is simple and compact, with high connection strength, high tensile strength, good performance, and low manufacturing and maintenance costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the backpack battery fixing cable mounting structure of this utility model; Figure 2 This is a partial sectional view of the backpack battery fixing cable mounting structure of this utility model; Figure 3 This is an exploded structural diagram of the backpack battery fixing cable mounting structure of this utility model; Figure 4 This is a cross-sectional view of the cable fixing component of the backpack battery fixing cable mounting structure of this utility model; Figure 5 This is another planar sectional view of the cable fixing assembly of the backpack battery fixing cable mounting structure of this utility model; Figure 6This is a schematic diagram of the mounting base for the backpack battery fixing cable installation structure of this utility model; Figure 7 This is a schematic diagram of the mounting base of the backpack battery fixing cable mounting structure of this utility model from another angle. Figure 8 This is a cross-sectional view of the mounting base for the backpack battery fixing cable installation structure of this utility model; Figure 9 This is a schematic diagram of the pressure block in the backpack battery fixing cable mounting structure of this utility model; Figure 10 This is a schematic diagram of the pressure block of the backpack battery fixing cable mounting structure of this utility model from another angle. Figure 11 This is a side view of the backpack battery fixing cable mounting structure of this utility model.

[0020] In the diagram: 1. Backpack battery, 2. Mounting base, 3. Pressure block, 4. Cable, 10. Hole, 21. Mounting plate, 22. Arc-shaped protrusion, 23. Mounting surface, 24. Mounting post, 26. Wear-resistant protrusion, 31. Mounting part, 32. Pressure block body, 41. Electrical connector, 220. Mounting area, 221. First wire groove, 230. Wire hole, 231. First limiting surface, 311. Mounting hole, 320. Second wire groove, 321. Second arc-shaped surface, 322. Protrusion, 323. Second limiting surface. Detailed Implementation

[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] See Figures 1-11 This utility model provides a backpack battery fixing cable installation structure, which includes a backpack battery 1, a cable fixing component and a cable 4.

[0023] Backpack Battery 1 includes a battery pack body and a wearable component. The battery pack body, as the core energy storage unit, includes a shell and battery cells housed within the shell. The shell is injection molded from engineering plastic with a certain structural strength, combining lightweight and impact resistance. A charging port is located on the side wall of the shell. The wearable component is mounted on the battery pack body and is used to carry the battery pack body on the back. This wearable component is an adjustable shoulder strap structure, including shoulder straps and a waist belt, providing reliable support for the stable carrying of the battery pack body.

[0024] The cable fixing assembly serves as the mounting structure for the cable 4 and the backpack battery 1. It includes a fixing base 2 located at the rear end of the housing and a pressure block 3 located within the fixing base 2. The fixing base 2 has an arc-shaped protrusion 22 protruding from the rear end of the housing, and the arc-shaped protrusion 22 has a spherical surface. The lower end of the arc-shaped protrusion 22 is provided with a mounting surface 23, which is an inclined surface facing downward and backward, i.e., the front end is low and the rear end is high. Preferably, the plane on which the mounting surface 23 is located passes through the center of the sphere of the arc-shaped protrusion 22. A wire hole 230 is provided on the mounting surface 23, and the wire hole 230 is perpendicular to the mounting surface. A first wire groove 221 is provided in the fixed base 2, and the first wire groove 221 is set facing forward. A second wire groove 320 is provided on the pressure block 3, and the second wire groove 320 is set facing backward. The first wire groove 221 and the second wire groove 320 are spliced ​​to form a cable channel. The cable channel is curved forward in an arc shape to form a first anti-pull structure. At the same time, a protrusion or protrusion 322 is provided in the cable channel. The protrusion or protrusion faces away from the bending direction of the cable channel. When the cable channel bends forward, the protrusion or protrusion is either backward or upward to form a second anti-pull structure.

[0025] Cable 4 is installed inside the cable channel. The outer wall of cable 4 is attached to the inner wall of the cable channel and is held by the first cable groove 221 and the second cable groove 320. The first end of cable 4 extends into the backpack battery 1 and connects to the battery cell inside the backpack battery 1. The second end of cable 4 passes through the wire hole 230 and extends to the outside of the fixing base 2, forming a free end. Since the mounting surface 23 is inclined, the root of cable 4 is inclined backward. An electrical connector 41 is provided on the free end to form a hanging connection end. The electrical connector is a quick plug that can be quickly plugged into another electrical connector on the electrical equipment, such as a vibrator. The cable 4 hangs freely, forming a suspension, which facilitates quick plugging and unplugging.

[0026] This application adopts a fixed cable installation structure consisting of a fixed base and a pressure block, eliminating the easily damaged rotating base in the prior art. When the cable is subjected to backward pulling force, the force is directly transmitted to the fixed base and the housing. There is no cantilever lever arm structure of the rotating base, so there will be no problem of the rotating base breaking or jamming due to bending moment. At the same time, since there are no moving parts, when the backpack battery is inverted, the weight of the whole device is directly borne by the housing, which will not put additional load on the cable fixing components and avoid the defect of the existing rotating base being damaged due to load.

[0027] The cable channel curves forward in an arc, creating a natural bend in the cable within the channel. When the cable is subjected to outward tension, the bent section generates frictional and deformation resistance against the inner wall of the channel, effectively preventing the cable from slipping. Simultaneously, protrusions or strips are installed within the channel, facing away from the bending direction of the cable channel, i.e., towards the inside of the cable bend. When the cable is subjected to tension, it tends to move closer to these protrusions or strips, naturally pressing the cable against them and further increasing the contact pressure and friction coefficient with the outer wall of the cable, forming multi-point engagement. The combined effect of these two elements ensures that even under high-frequency, large-angle tension conditions, such as when the vibrating rod cable is hooked by a reinforcing bar, the cable can be reliably held in place, preventing fatigue fracture of the core wire or insulation layer at the connection point.

[0028] Meanwhile, in this application, a rearward-sloping mounting surface is adopted, so the cable naturally extends out at a backward angle, avoiding a sharp bend backward after going vertically downward, thus reducing the risk of fatigue fracture. The cable extending out at a backward angle is far away from the rear edge of the shell, forming a space to avoid collision. The cable is less likely to come into contact with the edge of the shell during swinging, reducing the risk of wear and tear and shell edge cutting. Furthermore, the vertically downward cable is prone to back-and-forth swinging due to gravity and inertia, with a large swing amplitude. In contrast, the initial segment of the backward-sloping cable has a backward horizontal component, making its center of gravity closer to the back of the backpack, and the range of back-and-forth swinging is relatively reduced during movement.

[0029] The cable fixing assembly of this application consists of only two injection-molded parts: a fixing base and a pressure block. It has no easily damaged moving parts such as shafts, hinges, and springs. It is simple to process and assemble, and does not require regular lubrication or adjustment. It can maintain reliable fixation even in high dust and high vibration environments such as construction sites and field rescue. The maintenance frequency and repair cost are far lower than those of structures with rotating bases.

[0030] In this application, the edge of the wire hole 230 is rounded, which can prevent the cable from being cut or worn by sharp edges when it is repeatedly swinging or stretched, and extend the service life of the insulation layer and the core wire.

[0031] The angle between the mounting surface 23 and the horizontal plane is 5°-20°, preferably 10°. With the above settings, the cable naturally gains a backward slope, the root bending angle is significantly reduced, the risk of fatigue fracture is reduced, and the cable outlet is kept away from the rear edge of the backpack shell to avoid wear.

[0032] In this application, the protrusions or ridges 322 are disposed in the second cable groove 320. Preferably, ridges are used, which are strip-shaped and horizontally disposed, and can contact the curved inner wall end of the cable. The cable channel is curved forward in an arc shape, and the cable naturally forms a curved state in the channel. The protrusions or ridges are located on the inner wall side of the cable bend, i.e., the concave surface. When the cable is subjected to outward pulling force, the edge of the protrusions or ridges will embed into the cable sheath or generate a wedge-shaped blockage, effectively preventing the cable from slipping. Its structure is compact and has a good anti-slip effect.

[0033] The edge of the arc-shaped protrusion 22 extends radially outward to form a mounting plate 21. The mounting plate 21 is rectangular in shape. At the rear end of the housing, there is a mounting groove corresponding to the mounting plate 21. During assembly, the mounting plate 21 is installed into the mounting groove from front to back and fixed with bolts. Meanwhile, a hole 10 is opened in the mounting groove. This hole is a round hole that penetrates the rear end face of the housing, allowing the arc-shaped protrusion 22 to pass through rearward and protrude outward from the housing. Since the mounting plate is assembled from front to back, the backward tension will make the mounting plate fit more tightly against the bottom surface of the mounting groove. At this time, the connection structure mainly bears the compressive stress on the support surface, rather than the tensile stress of the bolts. Therefore, the overall connection strength and tensile strength are high, and the reliability is good.

[0034] The cable fixing components in this application are described in detail below.

[0035] An installation cavity is formed within the arc-shaped protrusion 22, with an open front end for mounting the pressure block. A first groove 221 is provided within the installation cavity, and forward-facing mounting posts 24 are provided on both sides of the installation cavity, forming an installation area 220 between the mounting posts 24. The pressure block 3 includes a pressure block body 32, with a second groove formed on the pressure block body 32. The pressure block body 32 is positioned within the installation area 220, and both sides of the pressure block body 32 can contact the mounting posts 24 to achieve positioning, ensuring precise positioning of the first and second grooves and preventing misalignment. The front ends of the pressure block body 32 extend outward to form installation portions 31, with installation holes 311 provided on the installation portions 31. The installation holes 311 correspond to the screw holes at the ends of the mounting posts 24 for fixing the pressure block 3 to the mounting base.

[0036] Specifically, a first arc-shaped surface facing forward is provided in the mounting cavity, and a first wire groove 221 is formed on the first arc-shaped surface; a second arc-shaped surface 321 facing backward is provided on the pressure block body 32, and the second arc-shaped surface 321 can fit against the first arc-shaped surface. A second wire groove 320 is formed on the second arc-shaped surface 321. When the first arc-shaped surface and the second arc-shaped surface fit together, the first wire groove and the second wire groove are spliced ​​to form a cable channel; and in this embodiment, the first arc-shaped surface and the second arc-shaped surface have a width difference. Preferably, the width of the second arc-shaped surface is greater than the width of the first arc-shaped surface, which can improve the fitting strength between the first arc-shaped surface and the second arc-shaped surface; at the same time, increasing the width of the pressure block body improves the structural strength, which is convenient for production and processing, and easy to assemble.

[0037] A first limiting surface 231 is provided on the bottom surface of the installation area 220, and a second limiting surface 323 is provided on the bottom surface of the pressure block body 32, which can contact the first limiting surface 231. The first limiting surface 231 and the second limiting surface 323 are inclined surfaces, and their inclination direction is the same as that of the installation surface 23. During assembly, the pressure block body is inserted into the installation area from front to back. Radial limiting is achieved on both sides through the installation posts. The second limiting surface at the bottom contacts the first limiting surface. During the backward pushing process, it moves upward under the action of the inclined surface and presses the cable, which is convenient for assembly. Moreover, the first limiting surface and the second limiting surface can withstand pressure. When subjected to tension, most of the cable tension is borne by the normal pressure and friction between the inclined surfaces. The screw mainly plays the role of preventing the pressure block from coming out in the opposite direction, reducing the force on the screw and improving the reliability and stability of the connection.

[0038] In this application, a wear-resistant protrusion 26 is provided at the rear end of the arc-shaped protrusion. When the backpack battery 1 is placed face down, the wear-resistant protrusion 26 can contact the ground. The wear-resistant protrusion 26 is integrally formed with the fixing base 2. It is a protruding structure and mainly plays a wear-resistant role. Therefore, it is called a wear-resistant protrusion. In this embodiment, there are two wear-resistant protrusions, which are located on both sides of the cable. The wear-resistant protrusion protrudes from the rear end of the arc-shaped protrusion and bears the contact pressure with the ground, preventing the arc-shaped protrusion itself from being worn flat or scratched. With the arc-shaped protrusion, the overall structure has high strength and strong pressure resistance.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A backpack battery fixing cable mounting structure, characterized in that, include: Backpack battery, including casing; A cable fixing assembly includes a fixing seat disposed at the rear end of the housing and a pressure block disposed within the fixing seat. The fixing seat has an arc-shaped protrusion extending beyond the rear end of the housing. The lower end of the arc-shaped protrusion has a mounting surface, which is a downward and rearward inclined surface. A wire through hole is formed on the mounting surface. The fixing seat has a forward-facing first wire groove, and the pressure block has a rearward-facing second wire groove. The first wire groove and the second wire groove form a cable channel. The cable channel is arc-shaped and forms a first anti-pull structure. The cable channel has protrusions or ridges that face away from the bending direction of the cable channel and form a second anti-pull structure. A cable is disposed within the cable channel, with its outer wall fitting against the inner wall of the cable channel. The first end of the cable is connected to the battery cell inside the backpack battery. The second end of the cable passes through the threading hole and extends to the outside of the fixing base to form a free end. An electrical connector is provided on the free end to form a suspended connection end.

2. The backpack battery fixing cable mounting structure as described in claim 1, characterized in that: The angle between the mounting surface and the horizontal plane is 5°-20°.

3. The backpack battery fixing cable mounting structure as described in claim 1, characterized in that: The edges of the threading hole are rounded.

4. The backpack battery fixing cable mounting structure as described in claim 1, characterized in that: The plane containing the mounting surface passes through the center of the arc-shaped protrusion.

5. The backpack battery fixing cable mounting structure as described in claim 1, characterized in that: The protrusion or the protrusion is disposed in the second groove.

6. The backpack battery fixing cable mounting structure as described in claim 1, characterized in that: The edge of the arc-shaped protrusion extends radially outward to form a mounting plate. The rear end of the housing is provided with a mounting groove corresponding to the mounting plate. A hole is opened in the mounting groove to allow the arc-shaped protrusion to pass through.

7. The backpack battery fixing cable mounting structure as described in claim 1, characterized in that: The arc-shaped protrusion has a front-opening mounting cavity, the first groove is disposed in the mounting cavity, and the mounting cavity has forward-facing mounting posts on both sides, forming a mounting area between the mounting posts; the pressure block includes a pressure block body, which is disposed in the mounting area, and its side walls can contact the mounting posts and achieve limiting; the front sides of the pressure block body extend outward to form mounting portions, and mounting holes corresponding to the mounting posts are opened on the mounting portions.

8. The backpack battery fixing cable mounting structure as described in claim 7, characterized in that: The mounting cavity has a forward-facing first arc-shaped surface, and the first groove is formed on the first arc-shaped surface; the pressure block body has a rearward-facing second arc-shaped surface that can fit against the first arc-shaped surface, and the second groove is formed on the second arc-shaped surface, and the first arc-shaped surface and the second arc-shaped surface have a width difference.

9. The backpack battery fixing cable mounting structure as described in claim 7, characterized in that: The bottom surface of the installation area is provided with a first limiting surface, and the bottom surface of the pressure block body is provided with a second limiting surface that can contact the first limiting surface. The first limiting surface and the second limiting surface are inclined surfaces and have the same inclination direction as the installation surface.

10. The backpack battery fixing cable mounting structure as described in claim 1, characterized in that: The rear end of the arc-shaped protrusion is provided with a wear-resistant protrusion, which can contact the ground when the backpack battery is placed face down.

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