Self-adaptive buckle type storage battery connecting wire clamp

Abstract

The invention relates to the technical field of electrical connecting parts, in particular to a self-adaptive buckle type storage battery connecting wire clamp which comprises an outer shell, an insulating layer and a plurality of spring ball self-adaptive assemblies. The insulating layer is tightly attached to the outer surface of the outer shell, the spring ball self-adaption assemblies are evenly distributed in the outer shell in the mode of surrounding the center shaft at equal intervals, and each spring ball self-adaption assembly is connected with the outer shell through a first spring. And each spring ball self-adaptive assembly comprises a ball, a second spring, a limiting cavity and a damping layer. According to the invention, the use cost and the frequency of replacing the wire clamp are reduced, the service life of the wire clamp is prolonged, and the maintenance and replacement cost of equipment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connection components, and is an adaptive snap-type battery connection wire clamp. Background Art

[0002] In the prior art, most of the power connection wire clamps are alligator clips. The contact surface between the wire clamp and the bolt has insufficient friction due to the shape mismatch (the wire clamp is mostly flat, and the bolt is hexagonal prism-shaped). A slight external force can cause it to fall off. Moreover, the V-shaped opening of the traditional alligator clip cannot fit the edges of the hexagonal bolt, and it is only fixed by spring pressure, so it is easy to slip off. In addition, the metal material of the alligator clip is easy to deform, and the clamping force decays over time, which may also cause more frequent falling-off phenomena.

[0003] During the charging and discharging test of communication batteries, it is necessary to use alligator clips to connect the hexagonal bolts on the batteries. During the installation stage, maintenance personnel need to repeatedly adjust it, which is time-consuming and laborious. When the edges of the hexagonal bolts contact the flat surface of the wire clamp, it is necessary to continuously rotate the wire clamp to find a relatively flat clamping surface, and it generally needs to be adjusted 3 - 5 times to barely fix it.

[0004] When operating in a narrow battery cabinet, the movement of the arm is restricted, and the adjustment difficulty is further increased. At the same time, the sizes of the contact bolts of batteries from different batches and different manufacturers are not uniform, but the opening range of the wire clamp is limited, and there is often an embarrassing situation of "not being able to clamp tightly and not being able to hold". The opening and closing tightness of a wire clamp decreases significantly with the increase in the number of uses. When replacing, the entire cable needs to be replaced, which increases the cost and is inconvenient to replace; during the fixing stage, dynamic interference is frequent. Due to the large number of power connection wires, maintenance personnel are very likely to make slight pulling movements inadvertently during the operation and maintenance process. However, in the case of poor contact, any slight pulling force will cause the wire clamp to fall off. Moreover, when the lighting is insufficient, it is difficult to observe the biting state of the wire clamp and the bolt, which further increases the maintenance time and operation and maintenance pressure. Summary of the Invention

[0005] The present invention provides an adaptive snap-type battery connection wire clamp, which overcomes the above-mentioned deficiencies of the prior art and can effectively solve the problems that the wire clamp in the prior art is easy to fall off and it is impossible to judge whether the wire clamp is fixed.

[0006] The technical solution of the present invention is achieved by the following measures: An adaptive snap-type battery connection wire clamp, comprising an outer housing, an insulating layer, and multiple groups of spring ball self-adapting components; the insulating layer is closely attached to the outer surface of the outer housing, and the spring ball self-adapting components are evenly distributed inside the outer housing in a manner of surrounding the central axis and at equal intervals, and each group of spring ball self-adapting components is connected to the outer housing through a first spring; each group of spring ball self-adapting components includes a ball, a second spring, a limiting cavity, and a shock-absorbing layer; the limiting cavity is arranged inside the outer housing for accommodating the second spring and the ball; the second spring is located inside the limiting cavity, one end of which is connected with a convex position, and the ball is located at the opening of the limiting cavity and abuts against the other end of the second spring; the shock-absorbing layer is closely attached between the outer side wall of the limiting cavity and the inner wall of the outer housing; one end of the first spring is fixedly connected to the inner wall of the outer housing, and the other end is fixedly connected to the outer side wall of the limiting cavity.

[0007] The following is a further optimization and / or improvement of the above-mentioned invention technical solution: The first spring can be a three-gradient spring.

[0008] The above-mentioned second spring can be a cylindrical spring.

[0009] It can also include an indicator light, which is arranged on the outer surface of the outer housing and is electrically connected to the internal conductive circuit of the wire clamp.

[0010] It can also include a maintenance cover; the maintenance cover covers the top of the outer housing and is detachably connected to the outer housing through a quick-release buckle.

[0011] The above-mentioned maintenance cover can be provided with a transparent observation window.

[0012] The three gradients of the above-mentioned three-gradient spring can have different elastic moduli, and from the end close to the outer housing to the end close to the limiting cavity, the elastic modulus decreases in turn.

[0013] A guiding inclined surface can be arranged at the opening of the above-mentioned limiting cavity.

[0014] The above-mentioned shock-absorbing layer can be made of rubber material.

[0015] The above-mentioned ball can be a tungsten carbide ball.

[0016] The present invention can adapt to storage battery bolts of different sizes and shapes without the need for customization for bolts of specific specifications. This greatly improves the versatility and applicability of the wire clamp. Users do not need to worry about the size differences of bolts, reducing the usage cost and the frequency of replacing the wire clamp. The design of the spring ball self-adapting component makes the connection between the wire clamp and the bolt more stable. Multiple spring ball self-adapting components are evenly distributed around the central axis, capable of applying pressure to the bolt from multiple directions, ensuring the tightness of the contact. At the same time, the elastic effects of the second spring and the first spring can continuously compensate for connection looseness caused by factors such as vibration, thermal expansion and contraction, etc., ensuring stable conductive performance under various working conditions and reducing faults and potential safety hazards caused by poor connection. The insulating layer closely attached to the surface of the outer shell plays a good insulating protection role. It can prevent electric shock hazards when operators come into contact with the wire clamp, and at the same time avoid short circuits between the wire clamp and surrounding conductors, improving the safety during use. Especially in a complex electrical environment, the presence of the insulating layer can effectively guarantee the safety of equipment and personnel. The setting of the shock-absorbing layer reduces the damage to the internal structure caused by vibration. During long-term use, frequent vibration may cause problems such as spring fatigue and component loosening. The shock-absorbing layer can absorb and buffer vibration energy, reducing these adverse effects, extending the service life of the wire clamp, and reducing the maintenance and replacement costs of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Appendix Figure 1 is the internal structure diagram of an embodiment of the present invention.

[0018] Appendix Figure 2 is the overall structure schematic diagram of an embodiment of the present invention.

[0019] Appendix Figure 3 is the structure schematic diagram of another perspective of an embodiment of the present invention.

[0020] Appendix Figure 4 is the structure schematic diagram of the spring ball self-adapting component of an embodiment of the present invention.

[0021] Appendix Figure 5 is the position schematic diagram of the limiting cavity of an embodiment of the present invention.

[0022] The codes in the drawings are respectively: 1 is the ball, 2 is the first spring, 3 is the outer shell, 4 is the insulating layer, 5 is the cable, 6 is the indicator light, 7 is the convex position, 8 is the limiting cavity, and 9 is the second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present invention is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical solution of the present invention and the actual situation.

[0024] The present invention will be further described below in conjunction with the embodiments: Embodiment 1: As shown in Figure 1 , 2 , 3, 4, and 5, the adaptive snap - type battery connection wire clamp includes a housing 3, an insulating layer 4, and multiple groups of spring - ball self - adapting components; the insulating layer 4 is closely attached to the outer surface of the housing 3, and the spring - ball self - adapting components are evenly distributed inside the housing 3 in a manner of surrounding the central axis and at equal intervals. Each group of spring - ball self - adapting components is connected to the housing 3 through a first spring 2; each group of spring - ball self - adapting components includes a ball 1, a second spring 9, a limiting cavity 8, and a shock - absorbing layer; the limiting cavity 8 is arranged inside the housing 3 for accommodating the second spring 9 and the ball 1; the second spring 9 is located inside the limiting cavity 8, one end of which is connected with a convex position 7, and the ball 1 is located at the opening of the limiting cavity 8 and abuts against the other end of the second spring 9; the shock - absorbing layer is closely attached between the outer side wall of the limiting cavity 8 and the inner wall of the housing 3; one end of the first spring 2 is fixedly connected to the inner wall of the housing 3, and the other end is fixedly connected to the outer side wall of the limiting cavity 8. Preferably, there are 18 groups of spring - ball self - adapting components. When the wire clamp is bolt - connected to the battery, the bolt presses the ball 1, and the ball 1 compresses the second spring 9 and retracts into the limiting cavity 8. At the same time, the first spring 2 also deforms accordingly according to the size and shape of the bolt, so that the spring - ball self - adapting components as a whole adjust their positions to adapt to the bolt. The shock - absorbing layer reduces the vibration during installation and use. In this way, the adaptive connection of the wire clamp to battery bolts of different sizes and shapes is realized, improving the stability and reliability of the connection. The insulating layer 4 ensures safety during use, and the shock - absorbing layer extends the service life of the wire clamp.

[0025] During operation, when connecting the wire clamp to the battery bolt, align the wire clamp with the bolt and apply a certain pressure. At this time, the ball 1 in the multiple spring ball self-adapting components evenly distributed around the central axis will first come into contact with the surface of the bolt. Since the sizes and shapes of bolts may vary, the extrusion forces received by the balls 1 at different positions will also be different. After being extruded by the bolt, the ball 1 will move into the limiting cavity 8. Because the ball 1 abuts against the second spring 9 located in the limiting cavity 8, the movement of the ball 1 will compress the second spring 9. When the second spring 9 is compressed, it will undergo elastic deformation and store elastic potential energy. Due to different forces on the balls 1 at different positions, the degree of compression of the second spring 9 is also different. For example, when the bolt diameter is large, most of the balls 1 will be subjected to greater extrusion, and correspondingly, the degree of compression of the second spring 9 will also be greater; if there are irregularities or a certain taper on the surface of the bolt, some of the balls 1 will be subjected to greater pressure first, and the second spring 9 at these positions will be compressed first. With the movement of the ball 1 and the second spring 9, the first spring 2 connected to the outer wall of the limiting cavity 8 will also participate in the adaptive adjustment process. One end of the first spring 2 is fixed to the inner wall of the outer housing 3, and the other end is connected to the outer wall of the limiting cavity 8. When the spring ball self-adapting component receives the force from the bolt, the first spring 2 will undergo corresponding deformation according to the magnitude and direction of the force. If the extrusion force of the bolt on the spring ball self-adapting component at a certain position is large, the first spring 2 at this position will be stretched or compressed to adjust the position and angle of the spring ball self-adapting component, so that the wire clamp can better fit the bolt. The multiple first springs 2 work together to enable the entire wire clamp to adapt to the irregular shape and different sizes of the bolt. During the installation process, vibrations may occur, such as when tightening the bolt or being subjected to external impacts. At this time, the shock-absorbing layer closely attached between the outer wall of the limiting cavity 8 and the inner wall of the outer housing 3 will play a role. The shock-absorbing layer usually has elasticity and buffering performance, and it can absorb and disperse the energy generated by the vibration, reduce the impact of the vibration on the spring ball self-adapting component and the outer housing 3, and ensure the stability of the internal structure of the wire clamp. After the above series of adaptive adjustment processes, the spring ball self-adapting component can be adjusted according to the actual situation of the bolt, so that the wire clamp is tightly connected to the bolt. After the connection is completed, the second spring 9 and the first spring 2 maintain a certain amount of elastic deformation and continuously provide pressure to ensure that the ball 1 is in close contact with the surface of the bolt, thereby achieving a stable electrical connection.

[0026] During the work of heavy discharge of the storage battery, the adaptive snap-type storage battery connecting wire clamp is used to change the force direction from horizontal to vertical by buckling the bolt, so as to offset the possible horizontal dragging force during the operation and maintenance process. When the device buckles towards the bolt, the 18 inner balls 1 first contact the bolt edge. The balls 1 are compressed and retracted under pressure, triggering the compression of the gradient spring, and the whole device generates radial floating to correct the centering deviation. After the connection is successful, the indicator light 6 emits light. At the same time, due to the design of using balls 1 and springs, it can adapt to storage battery bolts of various sizes and types. According to the daily work requirements, when carrying out the charge and discharge test work of the communication storage battery, the device can be directly fixed on the storage battery bolt to be connected by pressing. After each section of the storage battery is correctly connected, the indicator light 6 on the device will light up, and the charge and discharge work of the storage battery will start. The present invention uses the pressing method to sleevethe connecting wire on the bolt of the storage battery, which greatly solves the problem of the wire clamp falling off caused by slight external force dragging. At the same time, because the storage batteries of different manufacturers are different, the sizes of the bolts used for connection are also different. The snap-type wire clamp can widely match various types of storage batteries through the design of the cylindrical spring and the balls 1, reducing the replacement cost while increasing the number of tools carried by the maintenance personnel and improving the operation and maintenance efficiency. The present invention can directly nest the wire clamp on the storage battery bolt by pressing, realizing "blind operation" type rapid alignment. The single clamping time is reduced from an average of 45 seconds to 5 seconds. It can also be compatible with the adaptive wire clamp of multi-size bolts, reducing the tool replacement frequency. At the same time, the fixing situation of the wire clamp can be clearly displayed through the indicator light 6, which can not only meet the actual use requirements, but also enhance the dynamic stability during the operation process and improve the maintenance efficiency of the operation and maintenance personnel.

[0027] This wire clamp can adapt to battery bolts of different sizes and shapes without the need for customization for bolts of specific specifications. This greatly improves the versatility and applicability of the wire clamp. In practical applications, users do not need to worry about the size differences of bolts, reducing the usage cost and the frequency of replacing the wire clamp. Whether it is a bolt of standard size or a non-standard size with certain surface defects, the wire clamp can achieve a good connection through the adjustment of the spring ball self-adapting component. The design of the spring ball self-adapting component makes the connection between the wire clamp and the bolt more stable. Multiple spring ball self-adapting components are evenly distributed around the central axis, which can apply pressure to the bolt from multiple directions, ensuring the tightness of the contact. At the same time, the elastic effects of the second spring 9 and the first spring 2 can continuously compensate for the connection looseness caused by factors such as vibration, thermal expansion and contraction, etc., ensuring stable conductive performance under various working conditions and reducing the failures and safety hazards caused by poor connection. The insulating layer 4 closely attached to the surface of the outer shell 3 plays a good insulating protection role. It can prevent the operator from getting an electric shock when contacting the wire clamp, and at the same time avoid short circuits between the wire clamp and surrounding conductors, improving the safety during use. Especially in a complex electrical environment, the presence of the insulating layer 4 can effectively guarantee the safety of equipment and personnel. The setting of the shock-absorbing layer reduces the damage to the internal structure caused by vibration. During long-term use, frequent vibration may cause problems such as spring fatigue and component loosening, while the shock-absorbing layer can absorb and buffer the vibration energy, reducing these adverse effects, extending the service life of the wire clamp, and reducing the maintenance and replacement costs of the equipment.

[0028] Embodiment 2: As shown in Figure 1 , 2 , 3, 4, 5, the first spring 2 of this self-adaptive snap-type battery connection wire clamp is a three-gradient spring. The three-gradient spring has different elastic characteristics. When the bolt presses the spring ball self-adapting component, according to the different magnitudes of the force, different gradients of the three-gradient spring play a role, more precisely adjusting the position and state of the spring ball self-adapting component. By doing so, the self-adaptive ability of the wire clamp to bolts of different sizes and shapes is further enhanced, making the connection more stable and tight.

[0029] The second spring 9 of this self-adaptive snap-type battery connection wire clamp is a cylindrical spring. When the ball 1 is pressed by the bolt, the cylindrical spring is compressed to produce elastic deformation and store energy; when the bolt pressure decreases or disappears, the cylindrical spring returns to its original state and pushes the ball 1 to reset. It provides stable elastic support for the ball 1, ensuring that the ball 1 can flexibly expand and contract to achieve self-adaptive contact with the bolt.

[0030] Embodiment 3: As shown in Figure 1 , 2As shown in Figures 3, 4, and 5, the adaptive snap-on battery cable clamp includes an indicator light 6, which is located on the outer surface of the outer shell 3 and electrically connected to the conductive circuit within the clamp. Indicator light 6 determines the connection status between the clamp and the battery bolt by detecting the current flowing in the conductive circuit. If the connection is good, indicator light 6 displays one status; if the connection is poor or broken, indicator light 6 displays another status. This allows users to intuitively understand the connection status between the clamp and the battery bolt, allowing them to promptly identify and address any problems, thereby improving user convenience and safety.

[0031] The adaptive snap-on battery cable clamp also includes an inspection cover; the cover fits over the top of the outer shell 3 and is removably connected to the outer shell 3 via a quick-release buckle. When the interior of the adaptive snap-on battery cable clamp needs to be inspected, the operator presses the quick-release buckle to release the buckle's lock on the inspection cover and outer shell 3. The cover can then be removed from the top of the outer shell 3, exposing internal structures such as the spring-ball self-adaptive assembly for easy inspection, maintenance, or component replacement. After inspection, the cover is aligned with the top of the outer shell 3 and pressed to reengage the quick-release buckle, securing the cover to the outer shell 3 and completing the inspection. The removable connection of the cover to the outer shell 3 via the quick-release buckle greatly enhances the maintainability of the clamp. Without the need for complex tools, the operator can quickly open the cover, facilitating inspection and repair of internal components, shortening maintenance time and improving work efficiency. At the same time, the detachable inspection cover design makes it easier to replace damaged internal components, reduces maintenance costs, and extends the overall service life of the wire clamp.

[0032] The inspection cover of this adaptive snap-on battery cable clamp features a transparent observation window. Through this window, users can directly observe the working condition and wear of the clamp's internal components, including the spring and ball self-adaptive assembly. This allows users to view the clamp's internal conditions without opening the cover, facilitating routine inspection and maintenance, identifying potential issues promptly, and improving maintenance efficiency and convenience.

[0033] The outer shell 3 of this adaptive snap-on battery cable clamp is a rigid hexagonal outer shell. This rigid shell protects the internal spring-ball self-adaptive assembly and other structures from external damage. The hexagonal design makes the clamp easier to position and secure during installation and use, enhancing the clamp's overall structural strength and stability, improving durability and ease of installation.

[0034] The ball 1 of the self - adaptive snap - type battery connection wire clamp is a tungsten carbide ball 1. The tungsten carbide ball 1 has high hardness and wear resistance. During the frequent contact and extrusion with the battery bolt, it can maintain the stability of its own shape and performance. It extends the service life of the ball 1, ensures the long - term stable contact between the wire clamp and the bolt, and improves the electrical conductivity and connection reliability.

[0035] Example 4: As shown in Attachments Figure 1 , 2 , 3, 4, and 5, the three steps of the three - gradient spring of the self - adaptive snap - type battery connection wire clamp have different elastic moduli. From the end close to the outer housing 3 to the end close to the limiting cavity 8, the elastic modulus decreases in turn. When the bolt squeezes the spring - ball self - adapting component, first, the step at the end close to the outer housing 3 with a larger elastic modulus bears a larger force and produces a smaller deformation; as the bolt continues to squeeze, the step at the end close to the limiting cavity 8 with a smaller elastic modulus gradually comes into play and produces a larger deformation, thus realizing a more refined self - adaptation adjustment. This enables the wire clamp to more accurately adapt to bolts of different sizes and shapes, improves the accuracy and effect of self - adaptation, and further enhances the connection stability.

[0036] Example 5: As shown in Attachments Figure 1 , 2 , 3, 4, and 5, a guiding inclined surface is provided at the opening of the limiting cavity 8 of the self - adaptive snap - type battery connection wire clamp. When the ball 1 is squeezed by the bolt, the guiding inclined surface guides the ball 1 to accurately move into the limiting cavity 8, enabling the ball 1 to smoothly compress the second spring 9. It improves the response speed and stability of the spring - ball self - adapting component, ensures that the ball 1 can accurately perform telescopic movement when stressed, and guarantees the normal functioning of the self - adaptation function of the wire clamp.

[0037] The shock - absorbing layer of the self - adaptive snap - type battery connection wire clamp is made of rubber material. The rubber material has good elasticity and shock - absorbing performance. During the installation and use process, when the wire clamp is vibrated, the rubber shock - absorbing layer can absorb and buffer the vibration energy. It reduces the influence of vibration on the spring - ball self - adapting component and the outer housing 3, protects the internal structure of the wire clamp, extends the service life of the wire clamp, and at the same time reduces problems such as connection loosening caused by vibration.

[0038] The above - mentioned technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effects. Non - essential technical features can be added or subtracted according to actual needs to meet the requirements of different situations.

Claims

1. An adaptive snap - type battery connection wire clamp, characterized in that It includes an outer housing, an insulating layer, and multiple groups of spring ball self - adapting components; the insulating layer is closely attached to the outer surface of the outer housing, and the spring ball self - adapting components are evenly distributed inside the outer housing in a manner of surrounding the central axis and at equal intervals. Each group of spring ball self - adapting components is connected to the outer housing through a first spring; each group of spring ball self - adapting components includes balls, a second spring, a limiting cavity, and a shock - absorbing layer; the limiting cavity is arranged inside the outer housing for accommodating the second spring and the balls; the second spring is located inside the limiting cavity, one end of which is connected with a convex position, and the balls are located at the opening of the limiting cavity and are abutted against the other end of the second spring; the shock - absorbing layer is closely attached between the outer side wall of the limiting cavity and the inner wall of the outer housing; one end of the first spring is fixedly connected to the inner wall of the outer housing, and the other end is fixedly connected to the outer side wall of the limiting cavity.

2. The adaptive snap-type battery connection wire clamp according to claim 1, wherein The first spring is a three - gradient spring.

3. The adaptive snap-type battery connection wire clamp according to claim 1 or 2, characterized in that The second spring is a cylindrical spring.

4. The adaptive snap-type battery connection wire clamp according to claim 1 or 2, characterized in that It further includes an indicator light, and the indicator light is arranged on the outer surface of the outer housing and is electrically connected to the internal conductive circuit of the wire clamp.

5. The adaptive snap-type battery connection wire clamp according to claim 1 or 2, wherein It further includes a maintenance cover; the maintenance cover covers the top of the outer housing and is detachably connected to the outer housing through quick - release buckles.

6. The adaptive snap-type battery connection wire clamp according to claim 5, characterized in that A transparent observation window is provided on the maintenance cover.

7. The self - adaptive snap - type battery connection wire clamp according to claim 2, wherein The three gradients of the three - gradient spring have different elastic moduli, and from the end close to the outer housing to the end close to the limiting cavity, the elastic moduli decrease in sequence.

8. The adaptive snap-type battery connection wire clamp according to claim 1 or 2 or 6 or 7, characterized in that A guiding inclined surface is provided at the opening of the limiting cavity.

9. The adaptive snap-type storage battery connecting wire clamp according to claim 1 or 2 or 6 or 7, characterized in that The shock - absorbing layer is made of rubber material.

10. The adaptive snap - type battery connection line clip according to claim 1 or 2 or 6 or 7, characterized in that The balls are tungsten carbide balls.

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