Probe adjusting frame and current testing device
By designing a probe adjustment bracket and using a threaded rod and a drive component to adjust the contact between the probe and the tab, the problems of poor contact and excessive compression of the current testing device on different types of battery cells were solved, achieving stable contact and versatility.
Patent Information
- Application Number
- CN202423043965.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing current testing devices suffer from problems such as poor contact between the probe and the tab or damage due to excessive pressure when dealing with different types of battery cells, and they also lack versatility.
A probe adjustment frame is designed, including a base, an adjustment plate, and a drive assembly. Through the cooperation of the threaded rod and the drive component, the adjustment plate can move closer to or further away from the base in a first direction, so as to achieve adjustable contact between the probe and the tab and avoid excessive compression.
It achieves stable contact between the probe and the tab, is compatible with multiple battery cell models, avoids damage, and increases the versatility of the current testing device.
Smart Images
Figure CN223582022U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electric core test, especially probe adjusting frame and current testing device. BACKGROUND
[0002] The electric core is the core component of the battery, and needs to be tested by current when it is out of the factory. The test device contacts the pole lug of the electric core through the probe module to form a circuit connection. However, with the increase of the use scene of the electric core, the structural characteristics of the electric core are not the same in different models, that is, the length, width and height of different models of the electric core are different, and the two pole lugs of the electric core are installed on the end face determined by the long side and the wide side.
[0003] The existing current testing device includes a shell main body and an end cover, the electric core is inserted into the shell main body, and the probe is installed on the end cover. When the end cover is buckled with the shell main body, the probe contacts the pole lug of the electric core. However, when the height of the electric core is different, if the height of the electric core is small, the contact between the probe and the pole lug will be poor, and if the height of the electric core is large, the extrusion force between the probe and the pole lug will be too large, which will easily cause deformation and damage of the two.
[0004] Therefore, a probe adjusting frame and a current testing device are needed to solve the above technical problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a probe adjusting frame and a current testing device, which can ensure the contact between the probe and the pole lug for current testing, avoid excessive extrusion between the probe and the pole lug, and increase the universality.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] The probe adjusting frame is suitable for current test of the electric core, and includes:
[0008] The base is provided with a fixed position, the fixed position is used for fixing the electric core, and the pole lug of the electric core faces the first direction;
[0009] The adjusting plate is arranged at intervals with the base in the first direction, the adjusting plate is provided with a probe, and the probe is used for electrically connecting with the pole lug of the electric core;
[0010] The driving assembly includes a driving piece and a threaded rod, the driving piece is installed on the base, the axis of the threaded rod is parallel to the first direction, one end of the threaded rod in the axial direction is rotationally connected with the base, the other end in the axial direction is threadedly connected with the adjusting plate, and the output end of the driving piece can drive the threaded rod to rotate around the axis of the threaded rod, so that the adjusting plate can move close to or away from the base along the first direction.
[0011] As a preferred technical scheme of the probe adjusting frame, the driving assembly further comprises a sliding block, the sliding block is fixed to the adjusting plate, and the threaded rod is in threaded connection with the sliding block.
[0012] As a preferred technical scheme of the probe adjusting frame, a plurality of threaded rods are arranged, the plurality of threaded rods are arranged on the circumferential side of the fixing position, and at least two of the threaded rods are symmetrically arranged on the opposite sides of the fixing position in the second direction or the third direction.
[0013] The first direction, the second direction and the third direction are perpendicular to each other.
[0014] As a preferred technical scheme of the probe adjusting frame, a guide column is further arranged, the guide column is parallel to the threaded rod, one end of the guide column is fixed to the base, and the other end is inserted into the adjusting plate and can move relatively along the axis of the guide column.
[0015] As a preferred technical scheme of the probe adjusting frame, a linear bearing is fixed to the adjusting plate, and the guide column is inserted into the linear bearing.
[0016] As a preferred technical scheme of the probe adjusting frame, in the projection in the first direction, the adjusting plate is rectangular, four guide columns are arranged, respectively arranged at the four corners of the adjusting plate, two threaded rods are arranged, the two threaded rods are symmetrically arranged on the opposite sides of the fixing position in the third direction, and the threaded rods are located between the adjacent two guide columns.
[0017] As a preferred technical scheme of the probe adjusting frame, a stabilizing member is further arranged, the stabilizing member is connected to the adjacent two guide columns, and the two guide columns are located on the same side of the fixing position in the third direction, the threaded rod is in rotational connection with the stabilizing member.
[0018] As a preferred technical scheme of the probe adjusting frame, the driving assembly further comprises a transfer case, the transfer case comprises an input shaft and a plurality of output shafts, the plurality of output shafts are in one-to-one transmission connection with the plurality of threaded rods, the driving member is in transmission connection with the input shaft, and the driving member can simultaneously drive the plurality of threaded rods to rotate.
[0019] As a preferred technical scheme of the probe adjusting frame, the driving member is a hand wheel, and the hand wheel is fixedly sleeved on the input shaft.
[0020] The current test device also comprises the probe and the probe adjusting frame, the probe is installed on the probe adjusting frame, the probe comprises a first shaft section, a second shaft section and an elastic member, the first shaft section and the second shaft section are slidably connected along the first direction, the elastic member enables the first shaft section to move away from the second shaft section along the first direction, the first shaft section is used for contacting the tab of the battery cell, and the second shaft section is fixed to the adjusting plate.
[0021] The current test device also comprises the probe and the probe adjusting frame, the probe is installed on the probe adjusting frame, the probe comprises a first shaft section, a second shaft section and an elastic member, the first shaft section and the second shaft section are slidably connected along the first direction, the elastic member enables the first shaft section to move away from the second shaft section along the first direction, the first shaft section is used for contacting the tab of the battery cell, and the second shaft section is fixed to the adjusting plate.
[0022] The current test device also comprises the probe and the probe adjusting frame, the probe is installed on the probe adjusting frame, the probe comprises a first shaft section, a second shaft section and an elastic member, the first shaft section and the second shaft section are slidably connected along the first direction, the elastic member enables the first shaft section to move away from the second shaft section along the first direction, the first shaft section is used for contacting the tab of the battery cell, and the second shaft section is fixed to the adjusting plate.
[0023] The current test device also comprises the probe and the probe adjusting frame, the probe is installed on the probe adjusting frame, the probe comprises a first shaft section, a second shaft section and an elastic member, the first shaft section and the second shaft section are slidably connected along the first direction, the elastic member enables the first shaft section to move away from the second shaft section along the first direction, the first shaft section is used for contacting the tab of the battery cell, and the second shaft section is fixed to the adjusting plate. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.
[0025] Fig. 1 is a structural schematic diagram of the current test device provided by the embodiments of the present application;
[0026] Fig. 2 is a structural schematic diagram of the current test device provided by the embodiments of the present application;
[0027] Fig. 3 is a side view of the current testing device provided by the embodiment of the utility model.
[0028] In the drawings:
[0029] X, first direction; Y, second direction; Z, third direction;
[0030] 1, current testing device; 2, battery cell;
[0031] 100, base;
[0032] 200, adjusting plate; 210, linear bearing;
[0033] 300, driving assembly; 310, hand wheel; 320, threaded rod; 330, sliding block; 340, transfer case; 341, input shaft; 342, output shaft; 343, box; 344, reversing transmission mechanism;
[0034] 400, guide column; 500, stabilizing piece; 600, probe. DETAILED DESCRIPTION
[0035] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.
[0036] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium; It can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0037] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "below" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0039] like Figs. 1 to 3 As shown, this utility model provides a probe adjustment frame 1, suitable for current testing of a battery cell 2, including a base 100, an adjustment plate 200, and a drive assembly 300. The base 100 has a fixing position for fixing the battery cell 2, with the tabs of the battery cell 2 facing a first direction X. The adjustment plate 200 is spaced apart from the base 100 in the first direction X, and a probe 600 is mounted on the adjustment plate 200 for electrical connection with the tabs of the battery cell 2. The drive assembly 300 includes a drive component and a threaded rod 320. The drive component is mounted on the base 100, and the axis of the threaded rod 320 is parallel to the first direction X. One axial end of the threaded rod 320 is rotatably connected to the base 100, and the other axial end is threadedly connected to the adjustment plate 200. The output end of the drive component can drive the threaded rod 320 to rotate around its axis, allowing the adjustment plate 200 to move closer to or further away from the base 100 along the first direction X.
[0040] Specifically, in the first direction X, the adjusting plate 200 relative to the base 100 includes a first position and a second position, when the adjusting plate 200 is in the first position, the distance between the adjusting plate 200 and the base 100 in the first direction X is H1, when the adjusting plate 200 is in the second position, the distance between the adjusting plate 200 and the base 100 in the first direction X is H2, and H2 < H1 is satisfied. When the base 100 is not loaded with the battery cell 2, the adjusting plate 200 can be in the first position, the second position, or any position between the first position and the second position. When it is necessary to install the battery cell 2 to the base 100, the adjusting plate 200 moves to the first position to leave enough installation space for the battery cell 2, and after the fixation of the battery cell 2, the tab of the battery cell 2 faces the side where the adjusting plate 200 is located. The adjusting plate 200 is loaded with the probe 600, the driving member drives the threaded rod 320 to rotate, so that the adjusting plate 200 can move from the first position to the second position along the first direction X, until the probe 600 contacts the tab, at this time, the distance between the adjusting plate 200 and the base 100 in the first direction X is h, and H2 ≤ h < H1 is satisfied. In this way, the distance between the probe 600 and the base 100 can be adjusted according to the specific size of the battery cell 2 in the first direction X, which can not only ensure that the probe 600 contacts the tab for current testing, but also avoid excessive extrusion of the probe 600 and the tab in the first direction X, which can cause deformation and damage of the probe 600 and / or the tab.
[0041] Optionally, the driving assembly 300 further comprises a sliding block 330, the sliding block 330 is fixed to the adjusting plate 200, and the threaded rod 320 is threadedly connected with the sliding block 330. In this way, the processing difficulty of the adjusting plate 200 can be reduced, and the sliding block 330 is provided with a threaded hole for threadedly connecting with the threaded rod 320, and the sliding block 330 can move along the axial direction of the threaded rod 320 with the adjusting plate 200.
[0042] Illustratively, the sliding block 330 and the adjusting plate 200 are fixed through a flange structure.
[0043] Optionally, a plurality of threaded rods 320 are provided, the plurality of threaded rods 320 are installed on the circumferential side of the fixed position, and at least two of the threaded rods 320 are symmetrically arranged on opposite sides of the fixed position in the second direction Y or the third direction Z; the first direction X, the second direction Y and the third direction Z are perpendicular to each other.
[0044] In this way, the stress of the adjusting plate 200 can be uniform, and local stress can be avoided, so that the stability of the adjusting plate 200 during driving by the threaded rod 320 can be maintained.
[0045] Optionally, the probe adjusting rack 1 further comprises a guide column 400, the guide column 400 is parallel to the threaded rod 320, one end of the guide column 400 is fixed to the base 100, and the other end is inserted into the adjusting plate 200 and can move relatively along the axis of the guide column 400.
[0046] In this way, the plug-in relationship between the guide column 400 and the adjusting plate 200 can limit the tendency of the adjusting plate 200 to rotate with the threaded rod 320, keep the adjusting plate 200 stable, and provide more guiding support for the adjusting plate 200, so as to standardize the movement track of the adjusting plate 200 in the first direction X and ensure that the probe 600 carried by the adjusting plate 200 remains aligned with the tab of the battery cell 2.
[0047] Optionally, the adjusting plate 200 is fixed with a linear bearing 210, and the guide column 400 is inserted into the linear bearing 210.
[0048] In this way, the guide column 400 is connected to the adjusting plate 200 through the linear bearing 210, and when the adjusting plate 200 moves relative to the guide column 400 along the axis of the guide column 400, the linear bearing 210 can reduce the friction between the guide column 400 and the adjusting plate 200.
[0049] Optionally, in the projection in the first direction X, the adjusting plate 200 is rectangular, the guide column 400 is provided with four, which are respectively installed at the four corner positions of the adjusting plate 200, and the threaded rod 320 is provided with two, which are symmetrically arranged on the opposite sides fixed in the third direction Z, and the threaded rod 320 is located between the adjacent two guide columns 400.
[0050] In this way, the stress of the adjusting plate 200 is evenly distributed, and when the threaded rod 320 drives the adjusting plate 200 to move, the adjusting plate 200 can remain stable, thereby ensuring that the relative position between the probe 600 and the tab of the battery cell 2 remains stable.
[0051] Optionally, the probe adjusting frame 1 further comprises a stabilizing piece 500, the stabilizing piece 500 is connected to the ends of the adjacent two guide columns 400 opposite to the base 100, the two guide columns 400 are located on the same side fixed in the third direction Z, and the threaded rod 320 is rotationally connected with the stabilizing piece 500. Since one end of each of the two guide columns 400 is fixed with the base 100, and the other end is connected by the stabilizing piece 500, the parallel relationship between the two guide columns 400 can be maintained, and the end of the guide column 400 away from the base 100 can be prevented from losing constraint and shaking relative when the adjusting plate 200 moves to one side of the base 100, thereby affecting the movement track of the adjusting plate 200 to the base 100. Further, the threaded rod 320 is rotationally connected with the stabilizing piece 500, which can also ensure the stability of the parallel relationship between the threaded rod 320 and the guide column 400.
[0052] Optionally, the driving assembly 300 further comprises a transfer case 340, the transfer case 340 comprises an input shaft 341 and a plurality of output shafts 342, the plurality of output shafts 342 are in one-to-one transmission connection with the plurality of threaded rods 320, and the driving member is in transmission connection with the input shaft 341, so as to simultaneously drive the plurality of threaded rods 320 to rotate.
[0053] For example, in the embodiment, the transfer case 340 comprises a case body 343, an input shaft 341, two output shafts 342 and a transmission gear set. The input shaft 341 is parallel to the second direction Y in the axial direction, one end of the input shaft 341 is inserted into the case body 343 and can rotate relative to the case body 343, the output shaft 342 is parallel to the third direction Z in the axial direction, one end of the output shaft 342 is inserted into the case body 343 and can rotate relative to the case body 343, and the input shaft 341 and the output shaft 342 are drivingly connected by the transmission gear set in the case body 343. Further, the transmission gear set comprises a driving gear and two driven gears, the driving gear is coaxially fixed to the input shaft 341, the driven gears are coaxially fixed to the output shaft 342, the driving gear and the driven gears are bevel gears and can be drivingly engaged, thereby completing the reversing and splitting of the transmission.
[0054] Further, the output shaft 342 is drivingly connected to the threaded rod 320 through a reversing transmission mechanism 344. The reversing transmission mechanism 344 can reverse the power transmitted along the third direction Z to the first direction X.
[0055] It should be noted that the reversing transmission mechanism 344 is a prior art and will not be described here.
[0056] Optionally, the driving member is a hand wheel 310, and the hand wheel 310 is fixedly sleeved on the input shaft 341.
[0057] Specifically, the hand wheel 310 is coaxially arranged with the output shaft 342, and the hand wheel 310 is fixedly sleeved on the input shaft 341. A user rotates the hand wheel 310 to rotate the hand wheel 310 about its own axis, thereby starting the transfer case 340 and driving each threaded rod 320 to rotate through the transfer case 340, so as to adjust the distance between the adjusting plate 200 and the base 100.
[0058] Also provided is a current testing device comprising the probe adjusting rack 1 and a probe 600, the probe 600 being mounted on the probe adjusting rack 1, the probe 600 comprising a first shaft segment, a second shaft segment and an elastic member, the first shaft segment being slidingly connected with the second shaft segment along the first direction X, the elastic member allowing the first shaft segment to move away from the second shaft segment along the first direction X, the first shaft segment being used to contact the tab of the battery cell 2, and the second shaft segment being fixed with the adjusting plate 200.
[0059] In this way, the current testing device equipped with the above-mentioned probe adjusting rack 1 can adjust the relative position of the probe 600 to the base 100 according to the height dimension of the battery cell 2 in the first direction X, so that it can be compatible with more models of battery cells 2 and increase its versatility.
[0060] Further, the base 100 comprises a plurality of fixing positions arranged in the third direction Z, each fixing position fixing at most one battery cell 2, the adjusting plate 200 can carry a plurality of probes 600, the plurality of probes 600 correspond to the plurality of fixing positions, each fixing position is provided with two probes 600, which are respectively used for electrically connecting two tabs of the battery cell 2. The height of the tab from the base 100 in the first direction X is D, satisfying D>0, and the value of D is different for different models of battery cells 2. When the probe 600 contacts the tab of the battery cell 2 with D=Dmax, other probes 600 have not contacted the tabs of other battery cells 2, the adjusting plate 200 continues to move to one side of the base 100, at this time, part of the probes 600 have been in contact with the corresponding tab and have elastic deformation, that is, the first shaft section gradually retreats into the second shaft section, and the elastic member makes the first shaft section always contact the corresponding tab, until the tabs of all battery cells 2 contact the corresponding probes 600 to realize electrical connection.
[0061] In addition, the above are only preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims
1. Probe adjustment rack, suitable for current test of an electric core (2), characterized in that, The utility model relates to a battery cell probe device, including: A base (100) is provided with a fixed position for fixing the electrode lug of the battery cell (2) towards a first direction (X); An adjusting plate (200) is arranged with the base (100) in the first direction (X), the adjusting plate (200) is installed with a probe (600) for electrically connecting with the electrode lug of the battery cell (2); A drive assembly (300) includes a drive and a threaded rod (320), the drive is installed to the base (100), the axis of the threaded rod (320) is parallel with the first direction (X), the axial one end of the threaded rod (320) is rotatably connected with the base (100), and the axial other end is threadedly connected with the adjusting plate (200), and the output end of the drive can drive the threaded rod (320) to rotate around the axis of the threaded rod (320), so that the adjusting plate (200) can be close to or away from the base (100) along the first direction (X).
2. The probe conditioning rack of claim 1, wherein, The drive assembly (300) further includes a sliding block (330), the sliding block (330) is fixed to the adjusting plate (200), and the threaded rod (320) is threadedly connected with the sliding block (330).
3. The probe conditioning rack of claim 1, wherein, A plurality of threaded rods (320) are provided, a plurality of threaded rods (320) are installed on the circumferential side of the fixed position, and at least two threaded rods (320) are symmetrically arranged on the opposite sides of the fixed position in a second direction (Y) or a third direction (Z); The first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other.
4. The probe conditioning rack of claim 3, wherein, Further comprising a guide column (400) parallel to the threaded rod (320), one end of the guide column (400) is fixed to the base (100), and the other end is inserted into the adjusting plate (200) and can move relatively along the axis of the guide column (400).
5. The probe conditioning rack of claim 4, wherein, The adjusting plate (200) is fixed with a linear bearing (210), and the guide column (400) is inserted into the linear bearing (210).
6. The probe conditioning rack of claim 4, wherein, In the projection of the first direction (X), the adjusting plate (200) is rectangular, the guide column (400) is provided with four, respectively installed in the four corner positions of the adjusting plate (200), the threaded rod (320) is provided with two, two threaded rods (320) are symmetrically arranged on the opposite sides of the fixed position in the third direction (Z), and the threaded rod (320) is located between the adjacent two guide columns (400).
7. The probe conditioning rack of claim 6, wherein, Further comprising a stabilizing member (500) connected to the opposite ends of the adjacent two guide columns (400) relative to the adjusting plate (200) facing away from the base (100), the two guide columns (400) are located on the same side of the fixed position in the third direction (Z), and the threaded rod (320) is rotatably connected with the stabilizing member (500).
8. Probe adjustment rack according to any of claims 3-7, characterized in that The driving assembly (300) further comprises a transfer case (340), the transfer case (340) comprising an input shaft (341) and a plurality of output shafts (342), the plurality of output shafts (342) being in one-to-one transmission connection with the plurality of threaded rods (320), and the driving member being in transmission connection with the input shaft (341) and capable of simultaneously driving the plurality of threaded rods (320) to rotate.
9. The probe conditioning rack of claim 8, wherein, The driving member is a hand wheel (310), and the hand wheel (310) is fixedly sleeved on the input shaft (341).
10. A current testing device, characterized by The probe (600) is installed on the probe adjusting rack, and the probe (600) comprises a first shaft section, a second shaft section and an elastic member, the first shaft section is in sliding connection with the second shaft section along the first direction (X), the elastic member enables the first shaft section to be away from the second shaft section along the first direction (X), the first shaft section is used for contacting the tab of the battery cell (2), and the second shaft section is fixed with the adjusting plate (200).