Lithium battery test probe

Abstract

The utility model discloses a lithium battery test probe, which comprises a first probe assembly, a second probe assembly, a driving device and a transmission device, and is characterized in that the driving device drives the first probe assembly and the second probe assembly to contact and press two electrodes of a lithium battery through the transmission device so as to realize detection; a support is further included, a first gear and a second gear which are meshed with each other are rotationally connected to the support, a first cam and a second cam are fixed to the circle center of the first gear and the circle center of the second gear respectively, and a first connecting piece and a second connecting piece are rotationally connected to the first cam and the second cam respectively. The support is provided with a first movable channel and a second movable channel which are symmetrically arranged, and a first sliding block and a second sliding block are connected in the first movable channel and the second movable channel in a sliding mode respectively. And electrodes of various sizes can be adapted, so that the condition of missing contact can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery detection, and in particular relates to a lithium battery test probe. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. After the lithium battery is assembled, it needs to pass inspection, including battery performance inspection. However, the existing lithium battery has a structure with electrodes on the same side and electrodes on the opposite side. The existing detection probe is a single probe structure. During the detection, it is easy to deviate from the lithium battery electrode, reducing the efficiency and accuracy of the detection. Therefore, it is very important to obtain a lithium battery test probe that overcomes the above defects. Utility Model Content

[0003] In order to solve at least one of the above technical problems, the utility model provides a lithium battery test probe, including a first probe assembly and a second probe assembly, and also including a driving device and a transmission device, wherein the driving device drives the first probe assembly and the second probe assembly to contact and press the two electrodes of the lithium battery through the transmission device to achieve detection;

[0004] It also includes a bracket, on which a first gear and a second gear meshing with each other are rotatably connected, the centers of the first gear and the second gear are respectively fixed with a first cam and a second cam, on which a first connecting member and a second connecting member are respectively rotatably connected, the bracket is provided with a first movable channel and a second movable channel which are symmetrically arranged, in which a first slider and a second slider are respectively slidably connected, the first slider is provided with a first pin body, the first connecting member is pivotally connected to the first pin body, the second slider is provided with a second pin body, the second connecting member is pivotally connected to the second pin body, and the driving device includes a rotating motor, the output shaft of the rotating motor is fixedly connected to the first gear. A plurality of first bases are fixed on the first slider, and a plurality of second bases are fixed on the second slider.

[0005] As a preferred technical solution mentioned above, the first movable channel and the second movable channel are vertical channels.

[0006] Through the above technical solution, when it is necessary to detect that the positive and negative electrodes are both on the same side of the battery, the first active channel and the second active channel can be set as vertical channels.

[0007] As another preferred technical solution, the first movable channel and the second movable channel are arc-shaped channels and are located on the circumference of the same circle. A rotating column is fixed on the bracket, and a first rotating support member and a second rotating support member are rotatably sleeved on the rotating column. The outer end of the first rotating support member is fixed to the first slider, and the outer end of the second rotating support member is fixed to the second slider.

[0008] Through the above technical solution, when it is necessary to detect that the positive and negative electrodes are located on both sides of the battery, the first active channel and the second active channel can be set to be arc-shaped and separately set at the lower positions on both sides of the battery, so that when the first gear rotates, the first probe assembly and the second probe assembly are clamped toward each other.

[0009] The first probe assembly includes a plurality of first probes, the first probe includes a first seat body, a first movable channel is provided on the first seat body, and also includes a first contact body, the first contact body is at least partially located in the first movable channel and at least partially located outside the first movable channel, and a first spring is installed between the first contact body and the first movable channel, so that the first spring is compressed and buffered after the first contact body contacts the electrode of the lithium battery under pressure;

[0010] The second probe assembly includes a plurality of second probes, the second probe includes a second seat body, a second movable channel is provided on the second seat body, and also includes a second contact body, the second contact body is at least partially located in the second movable channel and at least partially located outside the second movable channel, and a second spring is installed between the second contact body and the second movable channel, so that the second spring is compressed and buffered after the second contact body contacts the electrode of the lithium battery under pressure;

[0011] It also includes a first logic OR gate and a second logic OR gate, wherein the first bases of several of the first probes are electrically connected to the input end of the first logic OR gate, and the second bases of several of the second probes are electrically connected to the input end of the second logic OR gate, and the output ends of the first logic OR gate and the second logic OR gate are respectively connected to the detection circuit.

[0012] Compared with the prior art, the utility model has the following advantages: the utility model has a simple structure, the first probe assembly is provided with a plurality of first probes, which can fully cover the electrodes of the battery, adapt to electrodes of various sizes, and prevent leakage contact from occurring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of implementation mode 1 of the utility model being put into use;

[0014] Figure 2 It is a cross-sectional schematic diagram of an implementation mode of the utility model;

[0015] Figure 3This is a schematic diagram of the second implementation mode of the utility model being put into use;

[0016] Figure 4 It is a cross-sectional schematic diagram of the second embodiment of the utility model;

[0017] Figure 5 It is a three-dimensional diagram of the cooperation between the first rotating support member and the second rotating support member;

[0018] Figure 6 A top view showing the cooperation between the first rotating support member and the second rotating support member;

[0019] Figure 7 This is a schematic diagram of the first probe being put into use;

[0020] Figure 8 is a schematic cross-sectional view of the second probe;

[0021] Fig. 9 is a top view of the first slider;

[0022] Reference numerals:

[0023] 11 first probe assembly; 111 first seat body; 112 first contact body; 113 first spring;

[0024] 12 second probe assembly; 121 second seat body; 122 second contact body; 123 second spring;

[0025] 2 bracket; 21 first gear; 22 second gear; 23 first cam; 24 second cam; 25 first connecting member; 26 second connecting member; 27 first movable channel; 28 second movable channel; 29 first slider; 30 second slider; 31 first pin body; 32 second pin body;

[0026] 41 rotating column; 42 first rotating support member; 43 second rotating support member;

[0027] 5 lithium battery; 51 electrode. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.

[0029] Referring to the accompanying drawings, the utility model adopts the following technical solution: a lithium battery test probe, comprising a first probe assembly 11 and a second probe assembly 12, and also comprising a driving device and a transmission device, wherein the driving device drives the first probe assembly 11 and the second probe assembly 12 to contact and press the two electrodes 51 of the lithium battery 5 through the transmission device to achieve detection;

[0030] The invention also includes a bracket 2, on which a first gear 21 and a second gear 22 meshing with each other are rotatably connected, a first cam 23 and a second cam 24 are fixed to the centers of the first gear 21 and the second gear 22, respectively, a first connecting member 25 and a second connecting member 26 are rotatably connected to the first cam 23 and the second cam 24, a first movable channel 27 and a second movable channel 28 are symmetrically arranged on the bracket 2, a first slider 29 and a second slider 30 are slidably connected in the first movable channel 27 and the second movable channel 28, a first pin body 31 is provided on the first slider 29, the first connecting member 25 is pivotally connected to the first pin body 31, a second pin body 32 is provided on the second slider 30, and the second connecting member 26 is pivotally connected to the second pin body 32, and the driving device includes a rotary motor, the output shaft of which is fixedly connected to the first gear 21. A plurality of first bases are fixed to the first slider 29, and a plurality of second bases are fixed to the second slider 30. The rotary motor can be fixed at any position that can drive the first gear 21.

[0031] As a preferred technical solution described above, the first movable channel 27 and the second movable channel 28 are vertical channels.

[0032] Through the above technical solution, when it is necessary to detect that the positive and negative electrodes 51 are both on the same side of the battery, the first active channel 27 and the second active channel 28 can be set as vertical channels.

[0033] As another preferred technical solution, the first movable channel 27 and the second movable channel 28 are arc-shaped channels and are located on the circumference of the same circle. A rotating column 41 is fixed on the bracket 2, and a first rotating support member 42 and a second rotating support member 43 are rotatably sleeved on the rotating column 41. The outer end of the first rotating support member 42 is fixed to the first slider 29, and the outer end of the second rotating support member 43 is fixed to the second slider 30.

[0034] Through the above technical solution, when it is necessary to detect that the positive and negative electrodes 51 are located on both sides of the battery, the first active channel 27 and the second active channel 28 can be set to be arc-shaped and respectively located at the lower positions on both sides of the battery, so that when the first gear 21 rotates, the first probe assembly 11 and the second probe assembly 12 are clamped toward each other.

[0035] The first probe assembly 11 includes a plurality of first probes, the first probe includes a first seat body 111, a first movable channel 27 is provided on the first seat body 111, and a first contact body 112 is further included, the first contact body 112 is at least partially located in the first movable channel 27 and at least partially located outside the first movable channel 27, and a first spring 113 is installed between the first contact body 112 and the first movable channel 27, so that the first spring 113 is compressed and buffered after the first contact body 112 contacts the electrode 51 of the lithium battery 5 under pressure;

[0036] The second probe assembly 12 includes a plurality of second probes, the second probe includes a second base body 121, a second movable channel 28 is provided on the second base body 121, and a second contact body 122 is further included, the second contact body 122 is at least partially located in the second movable channel 28 and at least partially located outside the second movable channel 28, and a second spring 123 is installed between the second contact body 122 and the second movable channel 28, so that the second spring 123 is compressed and buffered after the second contact body 122 contacts the electrode 51 of the lithium battery 5 under pressure;

[0037] It also includes a first logic OR gate and a second logic OR gate of the existing structure, the first bases of several of the first probes are electrically connected to the input end of the first logic OR gate, the second bases of several of the second probes are electrically connected to the input end of the second logic OR gate, and the output ends of the first logic OR gate and the second logic OR gate are respectively connected to the detection circuit.

[0038] That is, as long as one of the first contact bodies 112 contacts the electrode 51 , a signal can be sent to the detection circuit; that is, as long as one of the second contact bodies 122 contacts the electrode 51 , a signal can be sent to the detection circuit.

[0039] The first base 111 , the first contact body 112 , the first spring 113 , the second probe assembly 12 , the second base 121 , the second contact body 122 , and the second spring 123 may be made of conductive copper material;

[0040] Compared with the prior art, the utility model has the following advantages: the utility model has a simple structure, the first probe assembly 11 is provided with a plurality of first probes, which can fully cover the electrodes 51 of the battery, adapt to electrodes 51 of various sizes, and prevent leakage contact from occurring.

[0041] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A lithium battery test probe, characterized by: The invention comprises a first probe assembly (11) and a second probe assembly (12), and also comprises a driving device and a transmission device, wherein the driving device drives the first probe assembly (11) and the second probe assembly (12) to contact and press two electrodes (51) of a lithium battery (5) through the transmission device to achieve detection; The invention also includes a bracket (2), wherein a first gear (21) and a second gear (22) are rotatably connected to the bracket (2), wherein a first cam (23) and a second cam (24) are fixed to the centers of the first gear (21) and the second gear (22), respectively, wherein a first connecting member (25) and a second connecting member (26) are rotatably connected to the first cam (23) and the second cam (24), respectively, and a first movable channel (27) and a second movable channel (28) are symmetrically arranged on the bracket (2), wherein the first movable channel (27) and the second movable channel (28) are respectively slidably connected to each other. There are a first slider (29) and a second slider (30), the first slider (29) is provided with a first pin body (31), the first connecting member (25) is pivotally connected to the first pin body (31), the second slider (30) is provided with a second pin body (32), the second connecting member (26) is pivotally connected to the second pin body (32), the driving device includes a rotary motor, the output shaft of the rotary motor is fixedly connected to the first gear (21); the first probe assembly (11) is fixed on the first slider (29), and the second probe assembly (12) is fixed on the second slider (30).

2. The lithium battery test probe according to claim 1, characterized in that: The first probe assembly (11) includes a plurality of first probes, the first probe including a first base (111), a first movable channel (27) being provided on the first base (111), and a first contact body (112), the first contact body (112) being at least partially located within the first movable channel (27) and at least partially located outside the first movable channel (27), a first spring (113) being installed between the first contact body (112) and the first movable channel (27), so that the first spring (113) is compressed and buffered when the first contact body (112) contacts the electrode (51) of the lithium battery (5) under pressure; The second probe assembly (12) includes a plurality of second probes, the second probe including a second base (121), a second movable channel (28) being provided on the second base (121), and a second contact body (122), the second contact body (122) being at least partially located in the second movable channel (28) and at least partially located outside the second movable channel (28), a second spring (123) being installed between the second contact body (122) and the second movable channel (28), so that the second spring (123) is compressed and buffered when the second contact body (122) contacts the electrode (51) of the lithium battery (5) under pressure; It also includes a first logic OR gate and a second logic OR gate, wherein the first bases of several first probes are electrically connected to the input end of the first logic OR gate, and the second bases of several second probes are electrically connected to the input end of the second logic OR gate, and the output ends of the first logic OR gate and the second logic OR gate are respectively connected to the detection circuit.

3. The lithium battery test probe according to claim 1, wherein: The first movable channel (27) and the second movable channel (28) are vertical channels.

4. The lithium battery test probe according to claim 1, wherein: The first movable channel (27) and the second movable channel (28) are arc-shaped channels and are located on the circumference of the same circle.

5. The lithium battery test probe according to claim 4, characterized in that: A rotating column (41) is fixed on the bracket (2), and a first rotating support member (42) and a second rotating support member (43) are rotatably sleeved on the rotating column (41). The outer end of the first rotating support member (42) is fixed to the first slider (29), and the outer end of the second rotating support member (43) is fixed to the second slider (30).

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