A high-precision measuring instrument for internal resistance of button cell

Abstract

This utility model relates to the field of battery technology and discloses a high-precision measuring instrument for the internal resistance of button batteries. It includes a support frame, an internal resistance measuring instrument, a cable tie, a controller, and a threaded rod. A measuring mechanism is located at one end of the bottom surface of the support frame, and a feeding mechanism is located in the middle of the bottom surface. The measuring mechanism includes a fixing block. In this utility model, the measuring instrument, controlled by the controller, drives a first servo motor to rotate the bidirectional threaded rod, which, in conjunction with a guide rod on the fixing block, enables two sliders and a test pen on a hanging bracket to move stably in opposite directions. When the button battery is located between the two test pens, the sliders move in opposite directions, causing the test pens to simultaneously contact the positive and negative terminals of the button battery. The spring telescopic rod on the hanging bracket provides cushioning when the test pens contact the battery, preventing damage and ensuring stable contact with one end of the battery. After measurement, the sliders slide away in the opposite direction, reducing manual instability and improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a high-precision measuring instrument for the internal resistance of button batteries. Background Technology

[0002] Button batteries are small, round batteries named for their button-like shape. They are commonly used to power small electronic devices and are characterized by their small size, light weight, and stable voltage. Measuring the internal resistance of button batteries usually requires an internal resistance meter. The button battery must be fixed in place, and the test pen on the meter must be stably in contact with the positive and negative terminals of the battery to measure its internal resistance.

[0003] However, most button battery internal resistance measuring instruments require manual contact with the positive and negative terminals of the button battery using a test pen. The contact process requires the operator to hold the test pen steady throughout, which can easily lead to poor contact and affect the measurement results. In addition, button batteries are difficult to fix due to their small size, which can significantly affect the continuity of the measurement and reduce the practicality of the measuring device.

[0004] Therefore, those skilled in the art have provided a high-precision measuring instrument for the internal resistance of button batteries to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a high-precision measuring instrument for the internal resistance of button batteries. The measuring instrument uses a controller to control a first servo motor to drive a bidirectional threaded rod to rotate, which, in conjunction with a guide rod on a fixed block, enables two sliders and a test pen on a hanger to move stably in opposite directions. When the button battery is located between the two test pens, the sliders move in opposite directions, causing the test pens to simultaneously contact the positive and negative terminals of the button battery. The spring telescopic rod on the hanger provides a buffer when the test pens make contact, preventing damage to the battery and ensuring a stable fit against one end of the battery. After measurement, the sliders slide away in the opposite direction, reducing the instability caused by manual operation and improving the practicality of the device.

[0006] To achieve the above objectives, this utility model provides a high-precision measuring instrument for the internal resistance of button batteries, including a support frame, an internal resistance measuring instrument, a wire harness tube, a controller, and a threaded rod. A measuring mechanism is provided at one end of the bottom surface of the support frame, and a feeding mechanism is provided in the middle of the bottom surface of the support frame.

[0007] The measuring mechanism includes a fixed block, with guide columns fixedly connected to both ends of one side face of the fixed block. A first servo motor is provided in the middle of the lower end of the fixed block. A bidirectional threaded rod is fixedly connected to the output end of the first servo motor. A slider is sleeved on both the upper and lower ends of the bidirectional threaded rod. A hanger is fixedly connected to the middle of one side face of each of the two sliders. A spring telescopic rod is fixedly connected to both ends of one side face of each of the two hangers. A fixed rod is fixedly connected to one end of each pair of spring telescopic rods. A test pen is provided in the middle of one side face of each of the two fixed rods.

[0008] Through the above technical solution, the measuring instrument controls the first servo motor to drive the bidirectional threaded rod to rotate, and cooperates with the guide rod on the fixed block to enable the two sliders and the test pen on the hanger to move stably in opposite directions. When the button battery is located between the two test pens, the sliders move in opposite directions so that the test pens contact the positive and negative terminals of the button battery at the same time. The spring telescopic rod on the hanger provides a buffer when the test pens make contact to avoid damaging the battery and can stably stick to one end of the battery. After the measurement is completed, the slider slides away in the opposite direction, reducing the instability of manual operation and improving the practicality of the device.

[0009] Furthermore, the feeding mechanism includes a chassis, a second servo motor is provided at the upper end of the chassis, a support rod is fixedly connected to the output end of the second servo motor, a plurality of placement slots are fixedly connected to the outer wall of the support rod, a lower opening is provided in the middle of the lower end face of the plurality of placement slots, a sliding groove is provided on one side of the outer wall of the plurality of placement slots, and a gasket is slidably connected to one side of the outer wall of the plurality of sliding grooves.

[0010] Through the above technical solution, the measuring instrument controls the second servo motor to drive the support rod to rotate in a quarter-circle amplitude. Each rotation aligns the placement slot at one end of the support rod with the two test pens. After the measurement is completed, the support rod continues to rotate at a fixed amplitude to achieve continuous measurement. The button battery after measurement is removed from the placement slot by lifting pads, which improves the measurement efficiency and enhances the practicality of the device.

[0011] Furthermore, an internal resistance measuring instrument is provided in the middle of the upper end face of the support frame, two wire harness tubes are provided at one end of one side end face of the support frame, a controller is provided at one end of the bottom surface of the support frame, and a threaded rod is rotatably connected to the inner center of the bottom surface of the support frame.

[0012] Through the above technical solution, the support frame is used to place the internal resistance measuring instrument and to gather the wiring connected to the test pen through the cable tie tube. The controller controls the operation of components such as the first servo motor and the second servo motor. The threaded bar facilitates the movement of the support rod and the placement slot to one side for easy removal of the battery.

[0013] Furthermore, one end of each of the multiple spring telescopic rods is slidably connected to both ends of one side face of the hanger, and two sliders are slidably connected to one side of the outer wall of the two guide columns;

[0014] Through the above technical solution, the spring telescopic rod provides a buffer when the test pen makes contact to avoid damaging the battery and can stably adhere to one end of the battery.

[0015] Furthermore, one end of the bidirectional threaded rod passes through one side end face of the fixing block and forms a fixed connection with the output end of the first servo motor;

[0016] Through the above technical solution, the rotation of the bidirectional threaded rod is more stable and the fixing block can play an auxiliary fixing role.

[0017] Furthermore, a base is fitted onto the outer wall of the threaded rod, and one side of the outer wall of the base is slidably connected to one side of the outer wall of the bottom surface of the support frame;

[0018] Through the above technical solution, this setting enables the threaded bar to drive the chassis and its components, such as the second servo motor, to move to the middle of the bottom surface of the support frame, making it easier to remove the battery.

[0019] Furthermore, the rotation amplitude of the second servo motor is a fixed quarter circle;

[0020] The above technical solution enables the placement slot to be positioned along with the support rod to receive electrical measurements.

[0021] This utility model has the following beneficial effects:

[0022] 1. This utility model proposes a high-precision measuring instrument for the internal resistance of button batteries. The measuring instrument controls the first servo motor through the controller to drive the bidirectional threaded rod to rotate, and cooperates with the guide rod on the fixed block to enable the two sliders and the test pen on the hanger to move stably in opposite directions. When the button battery is located between the two test pens, the sliders move in opposite directions so that the test pens contact the positive and negative terminals of the button battery at the same time. The spring telescopic rod on the hanger provides a buffer when the test pens make contact to avoid damage to the battery and can stably stick to one end of the battery. After the measurement is completed, the sliders slide away in the opposite direction, reducing the instability of manual operation and improving the practicality of the device.

[0023] 2. The present invention proposes a high-precision measuring instrument for the internal resistance of button batteries. The measuring instrument controls the second servo motor through the controller to drive the support rod to rotate in a quarter-circle amplitude. Each rotation of the support rod aligns the placement slot at one end with the two test pens. After the measurement is completed, the support rod continues to rotate at a fixed amplitude to achieve continuous measurement. The button battery after measurement is removed from the placement slot by lifting pads, which improves the measurement efficiency and enhances the practicality of the device. Attached Figure Description

[0024] Figure 1 An isometric view of a high-precision measuring instrument for the internal resistance of a button battery proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the measuring mechanism of a high-precision measuring instrument for the internal resistance of a button battery proposed in this utility model.

[0026] Figure 3 This is a schematic diagram of the slider and spring telescopic rod of a high-precision measuring instrument for the internal resistance of a button battery proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the feeding mechanism of a high-precision measuring instrument for the internal resistance of button batteries proposed in this utility model.

[0028] Figure 5 This is an exploded view of the placement slot for a high-precision measuring instrument for the internal resistance of a button battery proposed in this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Support frame; 2. Internal resistance measuring instrument; 3. Cable harness; 4. Controller; 5. Measuring mechanism; 51. Fixing block; 52. Guide column; 53. First servo motor; 54. Bidirectional threaded rod; 55. Slider; 56. Hanger; 57. Spring telescopic rod; 58. Fixing rod; 59. Test pen; 6. Feeding mechanism; 61. Chassis; 62. Second servo motor; 63. Support rod; 64. Placement slot; 65. Lower opening; 66. Slide groove; 67. Gasket; 7. Threaded bar. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1-3 This utility model provides a specific implementation method:

[0033] A high-precision measuring instrument for the internal resistance of a button battery includes a support frame 1, an internal resistance measuring instrument 2, a cable tie 3, a controller 4, and a threaded rod 7. A measuring mechanism 5 is provided at one end of the bottom surface of the support frame 1, and a feeding mechanism 6 is provided in the middle of the bottom surface of the support frame 1. The measuring mechanism 5 includes a fixing block 51, with guide posts 52 fixedly connected to both ends of one side face of the fixing block 51. A first servo motor 53 is provided in the middle of the lower end of the fixing block 51, and a bidirectional threaded rod 54 is fixedly connected to the output end of the first servo motor 53. Slider 55 is sleeved on both the upper and lower ends of the bidirectional threaded rod 54. Hangers 56 are fixedly connected to the middle of one side face of each of the two sliders 55, and spring telescopic rods 57 are fixedly connected to both ends of one side face of each of the two hangers 56. Each pair of spring telescopic rods... One end of each of the two sliders 57 is fixedly connected to a fixed rod 58. A test pen 59 is provided in the middle of one end face of each of the two fixed rods 58. The measuring instrument controls the first servo motor 53 through the controller 4 to drive the bidirectional threaded rod 54 to rotate and cooperate with the guide rod 52 on the fixed block 51, so that the two sliders 55 and the test pen 59 on the hanger 56 can move stably in opposite directions. When the button battery is located between the two test pens 59, the sliders 55 move in opposite directions so that the test pens 59 contact the positive and negative terminals of the button battery at the same time. The spring telescopic rod 57 on the hanger 56 provides a buffer when the test pens 59 contact to avoid damage to the battery and can stably stick to one end of the battery. After the measurement is completed, the sliders 55 slide away in the opposite direction, reducing the instability of manual operation and improving the practicality of the device.

[0034] Reference Figure 3-5 The feeding mechanism 6 includes a chassis 61. A second servo motor 62 is installed at the upper end of the chassis 61. A support rod 63 is fixedly connected to the output end of the second servo motor 62. Multiple placement slots 64 are fixedly connected to the outer wall of the support rod 63. A lower opening 65 is opened in the middle of the lower end face of each of the multiple placement slots 64. A sliding groove 66 is opened on one side of the outer wall of each of the multiple placement slots 64. A pad 67 is slidably connected to one side of the outer wall of each of the multiple sliding grooves 66. The measuring instrument controls the second servo motor 62 through the controller 4 to drive the support rod 63 to rotate in a quarter-circle amplitude. Each time the support rod 63 rotates, the placement slot 64 at one end is aligned between the two test pens 59. After the measurement is completed, the support rod 63 continues to rotate at a fixed amplitude to achieve continuous measurement. The button battery after measurement is removed from the placement slot 64 by lifting the pad 67, which improves the measurement efficiency and thus enhances the practicality of the device.

[0035] An internal resistance measuring instrument 2 is installed in the middle of the upper end face of the support frame 1. Two wire harness tubes 3 are installed at one end of one side end face of the support frame 1. A controller 4 is installed at one end of the bottom face of the support frame 1. A threaded rod 7 is rotatably connected to the middle of the bottom face of the support frame 1. The support frame 1 is used to place the internal resistance measuring instrument 2 and to gather the wires connected to the test pen 59 through the wire harness tubes 3. The controller 4 controls the operation of components such as the first servo motor 53 and the second servo motor 62. The threaded rod 7 facilitates the movement of components such as the support rod 63 and the placement slot 64 to one side for easy removal of the battery.

[0036] One end of each of the multiple spring telescopic rods 57 is slidably connected to both ends of one side face of the hanger 56. Two sliders 55 are slidably connected to one side of the outer wall of the two guide posts 52. The spring telescopic rods 57 provide cushioning to avoid damage to the battery when the test pen 59 contacts it and can stably stick to one end of the battery.

[0037] One end of the bidirectional threaded rod 54 passes through one side end face of the fixing block 51 and forms a fixed connection with the output end of the first servo motor 53. The rotation of the bidirectional threaded rod 54 is more stable and the fixing block 51 can play an auxiliary fixing role.

[0038] The outer wall of the threaded rod 7 is fitted with a base plate 61. One side of the outer wall of the base plate 61 is slidably connected to one side of the outer wall of the bottom surface of the support frame 1. This arrangement allows the threaded rod 7 to drive the base plate 61 and the second servo motor 62 and other components on it to move to the middle of the bottom surface of the support frame 1, making it easier to remove the battery.

[0039] The rotation amplitude of the second servo motor 62 is a fixed quarter circle, which allows the placement slot 64 to be positioned with the support rod 63 to receive measurement by the test pen 59.

[0040] Working principle: The measuring instrument controls the first servo motor 53 via controller 4 to drive the bidirectional threaded rod 54 to rotate, causing the two sliders 55 and the test pens 59 on the hanger 56 above them to move in opposite directions on the bidirectional threaded rod 54. At the same time, the guide rod 52 on the fixed block 51 can limit the movement to make it more stable. When the button battery is between the two test pens 59, the sliders 55 move in opposite directions, causing the test pens 59 to contact the positive and negative terminals of the button battery at the same time. When the test pens 59 contact the battery, the spring telescopic rod 57 on the hanger 56 drives the test pens 59 on the fixed rod 58 to retract, thereby buffering the movement, avoiding damage to the battery and ensuring a stable fit against one end of the battery. After the measurement is completed, the sliders 55 slide away in the opposite direction. The measuring instrument controls the second servo motor 62 via controller 4 to drive the support rod 63 to rotate in a quarter-circle amplitude. Each rotation aligns the placement slot 64 at one end of the support rod 63 with the two test pens 59. After the measurement is completed, the support rod 63 continues to rotate at a fixed amplitude. The button battery after the measurement is completed is removed from the placement slot 64 by the lifting pad 67.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific 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 high-precision measuring instrument for the internal resistance of a button cell, comprising a support frame (1), an internal resistance measuring instrument (2), a beam tube (3), a controller (4) and a threaded rod (7), characterized in that: A measuring mechanism (5) is provided at one end of the bottom surface of the support frame (1), and a feeding mechanism (6) is provided in the middle of the bottom surface of the support frame (1). The measuring mechanism (5) includes a fixed block (51), both ends of one side face of the fixed block (51) are fixedly connected to guide posts (52), a first servo motor (53) is provided in the middle of the lower end of the fixed block (51), a bidirectional threaded rod (54) is fixedly connected to the output end of the first servo motor (53), a slider (55) is sleeved on the upper and lower ends of the bidirectional threaded rod (54), a hanger (56) is fixedly connected to the middle of one side face of the two sliders (55), a spring telescopic rod (57) is fixedly connected to both ends of one side face of the two hangers (56), a fixed rod (58) is fixedly connected to one end of each pair of spring telescopic rods (57), and an electric pen (59) is provided in the middle of one side face of each pair of fixed rods (58).

2. The high-precision measuring instrument for the internal resistance of a button cell according to claim 1, characterized in that: The feeding mechanism (6) includes a chassis (61), a second servo motor (62) is provided at the upper end of the chassis (61), a support rod (63) is fixedly connected to the output end of the second servo motor (62), a plurality of placement slots (64) are fixedly connected to the outer wall of the support rod (63), a lower opening (65) is provided in the middle of the lower end face of the plurality of placement slots (64), a sliding groove (66) is provided on one side of the outer wall of the plurality of placement slots (64), and a gasket (67) is slidably connected to one side of the outer wall of the plurality of sliding grooves (66).

3. The high-precision measuring instrument for the internal resistance of a button cell according to claim 1, characterized in that: An internal resistance measuring instrument (2) is provided in the middle of the upper end face of the support frame (1), two wire harness tubes (3) are provided at one end of one side end face of the support frame (1), a controller (4) is provided at one end of the bottom surface of the support frame (1), and a threaded rod (7) is rotatably connected in the middle of the bottom surface of the support frame (1).

4. The high-precision measuring instrument for the internal resistance of a button cell of claim 1, characterized in that: One end of each of the multiple spring telescopic rods (57) is slidably connected to both ends of one side face of the hanger (56), and two sliders (55) are slidably connected to one side of the outer wall of the two guide columns (52).

5. The high-precision measuring instrument for the internal resistance of a button cell according to claim 1, characterized in that: One end of the bidirectional threaded rod (54) passes through one side end face of the fixing block (51) and forms a fixed connection with the output end of the first servo motor (53).

6. The high-precision measuring instrument for the internal resistance of a button cell of claim 1, characterized in that: The outer wall of the threaded rod (7) is fitted with a base plate (61), and one side of the outer wall of the base plate (61) is slidably connected to one side of the outer wall of the bottom surface of the support frame (1).

7. The high-precision measuring instrument for the internal resistance of a button cell according to claim 2, characterized in that: The rotation amplitude of the second servo motor (62) is a fixed quarter circle.

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