Connecting device for increasing contact area of storage battery terminal
By designing a connection device suitable for various battery models, and utilizing movable modules and elastic elements to automatically correct the angle and increase the contact area, the problem of poor applicability of existing devices is solved, and the detection efficiency and safety are improved.
Patent Information
- Application Number
- CN202520086196.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing battery terminal connection devices are generally only applicable to one type of battery, which requires frequent replacement of different types of connection devices during testing. This is time-consuming and results in loose contact, affecting testing efficiency and safety.
A connection device including a fixed plate, a movable module, a buffer assembly, an auxiliary connection assembly, and a protective assembly is designed. The movable module automatically corrects the angle and increases the contact area. Multiple pairs of guide rods and elastic elements are used to ensure that the abutment and the terminal are fully fitted. The protective assembly is set to prevent excessive pressure and improve safety.
It achieves universality between different battery models, reduces the time required to replace connection devices, increases the contact area, reduces power loss and heat generation, and improves detection accuracy and safety.
Smart Images
Figure CN223871652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery terminal connection technology, and in particular to a connection device for increasing the contact area of battery terminals. Background Technology
[0002] When connecting a battery to electrical equipment or testing equipment, a terminal connection device is usually required. The purpose of this device is to increase the contact area between the battery terminals and the connection device, thereby reducing power loss, reducing heat generation during charging and discharging, and improving the safety factor.
[0003] Battery manufacturers typically produce various models and specifications of products. For batteries with different specifications and shapes, the shapes of the battery terminals (external components for the positive and negative terminals of the battery) will also vary considerably. When connecting batteries to electrical equipment or testing equipment, different connection devices are usually used for different battery terminal shapes to increase the contact area between the battery terminals and the connection device. This aims to reduce power loss, reduce heat generation during charging and discharging, improve safety, and enhance testing accuracy.
[0004] Most battery terminals have a flat surface, but the angle of the surface varies; some are horizontal, and some are tilted. Different products have different dedicated connection devices. If the type of product to be tested changes frequently during the testing process, the connection operation will be very inconvenient. Changing to different dedicated connection devices will consume a lot of time, and the tilt angle of different individual battery terminals of the same type will also vary. When in contact with the connection device, there will inevitably be a situation where the fit is not tight. The required contact is a flat surface, but in reality, the contact may be a line or even a point. It is necessary to ensure the contact area while being able to be used for connection devices of various products. Utility Model Content
[0005] The purpose of this utility model is to provide a connection device that increases the contact area of the battery terminals, so as to solve the problem mentioned in the background art that the existing battery terminal connection devices can generally only be used for one type of battery. This leads to the need to change to different types of special connection devices when testing multiple types of batteries, which is time-consuming and reduces the efficiency of the testing work.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a connecting device for increasing the contact area of battery terminals, comprising a fixing plate, two fixing blocks symmetrically connected to the bottom of the fixing plate, two pairs of connecting rods symmetrically fixed to the bottom of the two fixing blocks, two movable modules symmetrically hinged between the bottom ends of the two pairs of connecting rods, the two movable modules being electrically connected to the positive and negative terminals of the battery, and two threaded holes symmetrically opened on the front of the two movable modules.
[0007] Preferably, the bottom of the fixing plate is provided with a buffer assembly, and the top of the two fixing blocks is connected to the buffer assembly. The advantage of this arrangement is that the buffer assembly can reduce the impact force generated when the moving module comes into contact with the battery terminals, thus protecting the safety of the positive and negative terminals of the battery and the moving module.
[0008] Preferably, the buffer assembly includes two pairs of positioning rods symmetrically and movably inserted into the bottom of the fixed plate. The top ends of the two pairs of positioning rods penetrate the top of the fixed plate, and the bottom ends of the two pairs of positioning rods are fixedly connected to the tops of the two fixed blocks. Two sets of first elastic members are symmetrically fixedly connected between the tops of the two fixed blocks and the bottom of the fixed plate.
[0009] Preferably, the bottom of the two active modules are symmetrically connected with two auxiliary connecting components, which are used to make the bottom surface of the active modules fit more fully with the battery terminals.
[0010] Preferably, the auxiliary connection assembly includes two sets of guide rods symmetrically fixedly connected to the bottom of the two movable modules. Each set of guide rods consists of multiple pairs of guide rods equidistantly distributed from front to back. A connecting block is movably sleeved at the bottom of each pair of guide rods. A second elastic element is fixedly connected between the top of the connecting block and the bottom surface of the movable module. A stop block is fixedly connected to the bottom of the connecting block. The bottom surfaces of the two sets of stop blocks are respectively in contact with the surface of the battery terminals. The auxiliary connection assembly also includes two pairs of elastic clamps symmetrically fixedly connected to the two movable modules. Each pair of elastic clamps is symmetrically fixedly connected to the bottom of the movable module and abuts against the left and right sides of each set of stop blocks. The advantage of this arrangement is that the multiple pairs of guide rods and the second elastic element in each set allow the two sets of multiple stop blocks to move up and down independently. Therefore, when the top surfaces of the positive and negative terminals of the battery are bent, the two sets of stop blocks can more fully contact the positive and negative terminals, increasing the contact area, reducing power loss, and improving the reliability of the connection device.
[0011] Preferably, the fixing plate is provided with a protective component, which is used to prevent excessive contact pressure between the bottom surface of the block and the positive and negative terminals of the battery.
[0012] Preferably, the protective assembly includes a mounting box fixedly connected to the top of the fixed plate. The top of the mounting box has a vertical hole, and symmetrical guide cavities are formed inside the mounting box. The left and right inner walls of the vertical hole and the adjacent inner walls of the two guide cavities are connected through two through-cavities. The bottom end of the vertical hole penetrates the bottom surface of the mounting box. An elastic telescopic rod is fixedly connected to the top of the fixed plate. The top end of the elastic telescopic rod penetrates the bottom end of the vertical hole and is fixedly connected to a slider. The slider is movably inserted into the vertical hole. Two top plates are symmetrically hinged to the left and right sides of the slider via a first rotating rod and a first torsion spring. The ends of the two top plates that are far apart penetrate the left and right side walls of the mounting box, respectively. The protective assembly also includes two swing plates symmetrically hinged to the left and right sides of the fixed plate via a second rotating rod and a second torsion spring. The opposite ends of the top plates abut against the adjacent sides of the two swing plates. The bottom ends of the two swing plates are symmetrically hinged with two clamping plates. The advantage of this arrangement is that when the slider pushes the fixed plate downward, and the abutment and the battery terminals come into contact, the first elastic element is compressed to a certain length, and the elastic telescopic rod begins to retract. At this time, the opposite ends of the two top plates move in opposite directions to push the bottom ends of the two swing plates to rotate in the direction of approach. The two swing plates drive the two clamping plates to rotate in the direction of approach until they clamp the two sides of the battery casing. After the clamping plates clamp the battery casing, the abutment can no longer move downward, thus avoiding excessive pressure on the battery terminals and damage to the positive and negative terminals of the battery, thereby improving the reliability and safety of the connection device.
[0013] In summary, the technical effects and advantages of this utility model are as follows:
[0014] 1. In this utility model, by setting a fixed block, a connecting plate and a movable module, the movable module and the abutment will automatically correct the angle during the cooperation between the abutment and the battery terminal, so that the bottom surface of the abutment and the battery terminal will have a larger contact area, reducing power loss, power consumption and heat generation and inaccurate detection caused by insufficient contact area.
[0015] 2. In this utility model, by setting a rotatable movable module, the movable module and the stop block can automatically correct the contact angle with the battery terminals. It is not necessary to prepare a separate connection device for each battery with similar shape but different terminal tilt angles, which greatly reduces the workload of operators, improves production efficiency and the versatility of the connection device. Attached Figure Description
[0016] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of a connection device for increasing the contact area of battery terminals in an embodiment of this utility model;
[0018] Figure 2 This is a cross-sectional view of a connection device for increasing the contact area of battery terminals in an embodiment of this utility model.
[0019] Figure 3 This is a partial structural diagram of a connection device for increasing the contact area of battery terminals in an embodiment of the present invention;
[0020] Figure 4 This is a second partial structural diagram of a connection device for increasing the contact area of battery terminals in an embodiment of this utility model;
[0021] Figure 5 As an embodiment of this utility model Figure 3 Enlarged view of point A in the middle;
[0022] Figure 6 As an embodiment of this utility model Figure 4 Enlarged diagram of point B in the middle.
[0023] In the diagram: 1. Fixed plate; 2. Fixed block; 3. Connecting rod; 4. Movable module; 41. Threaded hole; 5. Buffer assembly; 51. Positioning rod; 52. First elastic element; 6. Auxiliary connecting assembly; 61. Guide rod; 62. Connecting block; 63. Second elastic element; 64. Abutment block; 65. Elastic clamping plate; 7. Protective assembly; 71. Mounting box; 72. Vertical hole; 73. Guide cavity; 74. Elastic telescopic rod; 75. Slider; 76. Top plate; 77. Swinging plate; 78. Clamping plate. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0025] Please refer to Figures 1-6The connecting device shown includes a fixed plate 1, two fixed blocks 2 symmetrically connected to the bottom of the fixed plate 1, two pairs of connecting rods 3 symmetrically fixed to the bottom of the two fixed blocks 2, two movable modules 4 symmetrically hinged between the bottom ends of the two pairs of connecting rods 3, the two movable modules 4 being electrically connected to the positive and negative terminals of the battery, and two threaded holes 41 symmetrically opened on the front of the two movable modules 4 for connecting external electrical equipment or testing equipment.
[0026] refer to Figures 1-4 The bottom of the fixed plate 1 is provided with a buffer component 5, and the tops of the two fixed blocks 2 are connected to the buffer component 5.
[0027] Specifically, the buffer component 5 can reduce the impact force generated when the active module 4 comes into contact with the battery terminals, thus protecting the safety of the positive and negative terminals of the battery and the active module 4.
[0028] refer to Figures 1-4 The buffer assembly 5 includes two pairs of positioning rods 51 that are symmetrically and movably inserted into the bottom of the fixed plate 1. The top ends of the two pairs of positioning rods 51 penetrate the top of the fixed plate 1. The bottom ends of the two pairs of positioning rods 51 are fixedly connected to the top of the two fixed blocks 2. Two sets of first elastic members 52 are symmetrically fixedly connected between the top of the two fixed blocks 2 and the bottom of the fixed plate 1.
[0029] refer to Figures 1-4 Two auxiliary connection components 6 are symmetrically connected to the bottom of the two active modules 4. The auxiliary connection components 6 are used to make the bottom surface of the active module 4 fit more fully with the battery terminals.
[0030] refer to Figures 2-6 The auxiliary connection component 6 includes two sets of guide rods 61 symmetrically fixedly connected to the bottom of the two movable modules 4. Each set of guide rods 61 consists of multiple pairs of guide rods 61 equidistantly distributed from front to back. A connecting block 62 is movably sleeved at the bottom of each pair of guide rods 61. A second elastic element 63 is fixedly connected between the top of the connecting block 62 and the bottom surface of the movable module 4. A stop block 64 is fixedly connected to the bottom of the connecting block 62. The bottom surfaces of the two sets of stop blocks 64 are respectively in contact with the surface of the battery terminals. The auxiliary connection component 6 also includes two pairs of elastic clamps 65 symmetrically fixedly connected to the two movable modules 4. Each pair of elastic clamps 65 is symmetrically fixedly connected to the bottom of the movable module 4 and abuts against the left and right sides of each set of stop blocks 64.
[0031] Specifically, the multiple pairs of guide rods 61 and the second elastic element 63 in each group allow the two groups of multiple abutments 64 to rise and fall independently. Thus, when the top surfaces of the positive and negative terminals of the battery are bent, the two groups of abutments 64 can fit more fully with the positive and negative terminals, increasing the contact area, reducing power loss, and improving the reliability of the connection device.
[0032] refer to Figures 1-4 The fixing plate 1 is provided with a protective component 7, which is used to prevent excessive contact pressure between the bottom surface of the abutment block 64 and the positive and negative terminals of the battery.
[0033] refer to Figures 1-4 The protective component 7 includes a mounting box 71 fixedly connected to the top of the fixed plate 1. The top of the mounting box 71 has a vertical hole 72. The mounting box 71 has symmetrically arranged guide cavities 73 inside. The left and right inner sidewalls of the vertical hole 72 and the inner sidewalls of the two guide cavities 73 that are close to each other are connected through two through cavities. The bottom end of the vertical hole 72 penetrates the bottom surface of the mounting box 71. An elastic telescopic rod 74 is fixedly connected to the top of the fixed plate 1. The top end of the elastic telescopic rod 74 penetrates the bottom end of the vertical hole 72 and is fixedly connected to a slider 75. The slider 75 is movably inserted into the vertical hole 72. The left and right sides of the slider 75 are symmetrically hinged to two top plates 76 through a first rotating rod and a first torsion spring. The ends of the two top plates 76 that are far apart penetrate the left and right sidewalls of the mounting box 71 respectively. The protective component 7 also includes two swing plates 77 that are symmetrically hinged to the left and right sides of the fixed plate 1 through a second rotating rod and a second torsion spring. The ends of the two top plates 76 that are far apart abut against the sides of the two swing plates 77 that are close to each other. The bottom ends of the two swing plates 77 are symmetrically hinged to two clamping plates 78.
[0034] Specifically, the slider 75 pushes the fixed plate 1 downward. When the abutment 64 and the battery terminal come into contact and fit together, the first elastic element 52 is compressed to a certain length, and the elastic telescopic rod 74 begins to retract. At this time, the two ends of the two top plates 76 that are far apart move in opposite directions to push the bottom ends of the two swing plates 77 to rotate in opposite directions. The two swing plates 77 drive the two clamping plates 78 to rotate in opposite directions until they clamp the two sides of the battery casing. When the clamping plates 78 clamp the battery casing, the abutment 64 can no longer move downward, thereby avoiding excessive pressure on the battery terminals by the abutment 64 and damage to the positive and negative terminals of the battery, thus improving the reliability and safety of the connection device.
[0035] Working principle: Connect the top of slider 75 to the lifting and pushing device, then align the positive and negative terminals of the battery directly below the two sets of abutments 64, and then start the lifting and pushing device to move the connecting device downward so that the two sets of abutments 64 contact the positive and negative terminals of the battery respectively.
[0036] Under the elastic force of the second elastic element 63, the two sets of abutments 64 independently adjust their height to better fit with the positive and negative terminals of the battery. At the same time, the two sets of abutments 64 rotate with the movable module 4 to better match the angle of the positive and negative terminals of the battery, thereby increasing the contact area between the abutments 64 and the terminals.
[0037] Furthermore, after the abutment 64 and the battery terminal come into contact and fit together, the first elastic element 52 is compressed to a certain length, and the elastic telescopic rod 74 begins to retract. At this time, the two ends of the two top plates 76 that are far apart move in the opposite direction to push the bottom ends of the two swing plates 77 to rotate in the opposite direction. The two swing plates 77 drive the two clamping plates 78 to rotate in the opposite direction until they clamp the two sides of the battery casing. After the clamping plates 78 clamp the battery casing, the abutment 64 can no longer move downward, thereby avoiding excessive pressure on the battery terminals by the abutment 64 and damage to the positive and negative terminals of the battery, thus improving the reliability and safety of the connection device.
[0038] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A connecting device for increasing the contact area of battery terminals, comprising a fixing plate (1), characterized in that: The bottom of the fixed plate (1) is symmetrically connected to two fixed blocks (2), and the bottom of the two fixed blocks (2) is symmetrically fixedly connected to two pairs of connecting rods (3). The bottom ends of the two pairs of connecting rods (3) are symmetrically hinged to two movable modules (4). The two movable modules (4) are electrically connected to the positive and negative terminals of the battery. The front of the two movable modules (4) is symmetrically opened with two threaded holes (41).
2. The connection device for increasing the contact area of battery terminals according to claim 1, characterized in that: The bottom of the fixing plate (1) is provided with a buffer assembly (5), and the tops of the two fixing blocks (2) are connected to the buffer assembly (5).
3. The connection device for increasing the contact area of battery terminals according to claim 2, characterized in that: The buffer assembly (5) includes two pairs of positioning rods (51) symmetrically and movably inserted into the bottom of the fixed plate (1). The top ends of the two pairs of positioning rods (51) penetrate the top of the fixed plate (1). The bottom ends of the two pairs of positioning rods (51) are fixedly connected to the top of the two fixed blocks (2). Two sets of first elastic members (52) are symmetrically fixedly connected between the top of the two fixed blocks (2) and the bottom of the fixed plate (1).
4. The connection device for increasing the contact area of battery terminals according to claim 3, characterized in that: Two auxiliary connection components (6) are symmetrically connected to the bottom of the two active modules (4). The auxiliary connection components (6) are used to make the bottom surface of the active module (4) fit more fully with the battery terminal.
5. The connection device for increasing the contact area of battery terminals according to claim 4, characterized in that: The auxiliary connection assembly (6) includes two sets of guide rods (61) symmetrically fixedly connected to the bottom of the two movable modules (4). Each set of guide rods (61) consists of multiple pairs of guide rods (61) evenly distributed from front to back. A connecting block (62) is movably sleeved at the bottom of each pair of guide rods (61). A second elastic element (63) is fixedly connected between the top of the connecting block (62) and the bottom surface of the movable module (4). A stop block (64) is fixedly connected to the bottom of the connecting block (62). The bottom surfaces of the two sets of stop blocks (64) are respectively in contact with the surface of the battery terminals. The auxiliary connection assembly (6) also includes two pairs of elastic clamps (65) symmetrically fixedly connected to the two movable modules (4). Each pair of elastic clamps (65) is symmetrically fixedly connected to the bottom of the movable module (4) and respectively abuts against the left and right sides of each set of stop blocks (64).
6. The connection device for increasing the contact area of battery terminals according to claim 5, characterized in that: The fixing plate (1) is provided with a protective component (7), which is used to prevent excessive contact pressure between the bottom surface of the abutment (64) and the positive and negative terminals of the battery.
7. The connection device for increasing the contact area of battery terminals according to claim 6, characterized in that: The protective component (7) includes a mounting box (71) fixedly connected to the top of the fixing plate (1). The top of the mounting box (71) has a vertical hole (72). The mounting box (71) has symmetrically arranged guide cavities (73). The left and right inner walls of the vertical hole (72) and the inner walls of the two guide cavities (73) that are close to each other are connected through two through cavities. The bottom end of the vertical hole (72) penetrates the bottom surface of the mounting box (71). An elastic telescopic rod (74) is fixedly connected to the top of the fixing plate (1). The top end of the elastic telescopic rod (74) penetrates the bottom end of the vertical hole (72) and is fixedly connected to a slider (75). (75) is movably inserted into the vertical hole (72). The left and right sides of the slider (75) are symmetrically hinged with two top plates (76) through the first rotating rod and the first torsion spring. The ends of the two top plates (76) that are far apart pass through the left and right side walls of the mounting box (71). The protective component (7) also includes two swing plates (77) that are symmetrically hinged to the left and right sides of the fixed plate (1) through the second rotating rod and the second torsion spring. The ends of the two top plates (76) that are far apart are respectively pressed against the sides of the two swing plates (77) that are close to each other. The bottom ends of the two swing plates (77) are symmetrically hinged with two clamping plates (78).