CN221056620U - Cell internal resistance voltage testing device - Google Patents

Abstract

The utility model discloses a device for testing internal resistance voltage of a battery cell, which comprises a base, a first cylinder, a second cylinder and a testing instrument, wherein the base is provided with a first air inlet and a second air inlet; the base is "L" type structure, the left side of the vertical end of base is fixed with the limiting plate, the upside of the horizontal end of base is fixed with first mount, the upside of the vertical end of base is through installation component demountable installation has the second mount, this electric core internal resistance voltage testing arrangement, through setting up first cylinder second cylinder on the base, the battery electric core of different specification sizes is fixed conveniently, through seting up the second mounting groove on the test clamp plate, and set up detachable test probe in the second mounting groove, be convenient for install in advance test probe's position, in order to adapt to the test of different model battery electric cores, accessible governing valve adjusts atmospheric pressure simultaneously, in order to adapt to the fixed of different thickness shell battery electric cores, and a structure is simple, and application scope is wide.

Description

Cell internal resistance voltage testing device

Technical Field

The utility model belongs to the technical field of battery testing, and particularly relates to a device for testing internal resistance voltage of a battery cell.

Background

The demand quantity of the new energy automobiles is increased, the demand quantity of the lithium batteries is increased, and the internal resistance voltage of the battery cells is required to be tested in the production process of the lithium batteries.

Through retrieving, the patent of application number 201320544176.4 discloses a test fixture of the internal resistance of battery cell and voltage of lithium cell, and this patent adopts the mode that the probe moved on the cylinder drive fly leaf, makes probe and the battery cell that awaits measuring contact, has solved the trouble of manual handheld test equipment to battery cell test, has improved the test security, but the fixed position of its two probes 6 is inconvenient to test the battery cell of equidimension, and the use limitation is great.

Disclosure of utility model

In order to solve the problems in the prior art, the utility model provides the battery cell internal resistance voltage testing device, which is characterized in that a first cylinder and a second cylinder are arranged on a base, battery cells with different specifications and sizes are conveniently fixed, a second mounting groove is formed in a testing pressing plate, a detachable testing probe is arranged in the second mounting groove, the position of the testing probe is conveniently preinstalled so as to adapt to testing of battery cells with different types, and meanwhile, the air pressure can be regulated through an adjusting valve so as to adapt to fixing of battery cells with different thickness shells.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The device for testing the internal resistance voltage of the battery cell comprises a base, a first cylinder, a second cylinder and a testing instrument; the base is "L" type structure, the left side of the vertical end of base is fixed with the limiting plate, the upside of the horizontal end of base is fixed with first mount, the upside of the vertical end of base is through mounting assembly demountable installation has the second mount, first mount and second mount are "L" type structure, first cylinder is installed to the upside of the horizontal end of first mount, the second cylinder is installed in the left side of the vertical end of second mount, first cylinder, second cylinder and limiting plate are located same vertical face, the flexible end of first cylinder and second cylinder all is fixed with the kicking block, the kicking block bottom of the flexible end of second cylinder is fixed with test clamp plate, demountable installation has two test probes on the test clamp plate, the gas pocket punishment of first cylinder and second cylinder is connected with the governing valve through the trachea correspondence, the air inlet of governing valve is connected with pneumatic switch through the trachea, the input of pneumatic switch is connected with the air supply, the test probe is connected with the same vertical face through the total battery through the test respectively, and is applicable to the battery core through the first electric wire harness setting up the small-size and is suitable for the battery cell of the whole size of the instrument, and the battery core is different in the size and the whole size is suitable for the battery cell size.

Further, the installation component includes first mounting groove and fastening bolt, two first mounting grooves have been seted up to the horizontal end of second mount, through fastening bolt demountable installation in the upside at the vertical end of base in the first mounting groove, the second mounting groove has been seted up on the test clamp plate, the test probe demountable installation is in this second mounting groove, through seting up the second mounting groove on the test clamp plate to set up demountable test probe in the second mounting groove, be convenient for carry out the pre-installation to test probe's position.

Furthermore, the data display screen is arranged on the testing instrument, the measured internal resistance and voltage of the battery are directly displayed on the instrument screen through numerical values, the measurement control is convenient, and the measurement result is more visual.

Compared with the prior art, the utility model has the beneficial effects that: through setting up first cylinder second cylinder on the base, the convenience is fixed the battery cell of different specification sizes, through seting up the second mounting groove on the test clamp plate, and set up detachable test probe in the second mounting groove, be convenient for install in advance the position of test probe, with the test of adaptation different model battery cell, accessible governing valve adjusts atmospheric pressure simultaneously, with the fixed of adaptation different thickness shell battery cell, and a whole structure is simple, application scope is wide, the internal resistance of measured battery and voltage are direct through numerical value display on the instrument screen, measurement control is convenient, measuring result is more directly perceived.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model.

In the figure: 1 base, 2 first mount, 3 first cylinder, 4 second mount, 5 installation component, 51 first mounting groove, 52 fastening bolt, 6 second cylinder, 7 kicking block, 8 test clamp plate, 9 second mounting groove, 10 test probe, 11 trachea, 12 governing valve, 13 pneumatic switch, 14 air supply, 15 test instrument, 16 conduction pencil assembly, 17 limiting plate.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples

Referring to fig. 1, a device for testing internal resistance voltage of a battery cell comprises a base 1, a first cylinder 3, a second cylinder 6 and a testing instrument 15; the base 1 is of an L-shaped structure, the limiting plate 17 is fixed on the left side of the vertical end of the base 1, the first fixing frame 2 is fixed on the upper side of the horizontal end of the base 1, the second fixing frame 4 is detachably arranged on the upper side of the vertical end of the base 1 through the mounting component 5, the first fixing frame 2 and the second fixing frame 4 are of an L-shaped structure, the first air cylinder 3 is arranged on the upper side of the horizontal end of the first fixing frame 2, the second air cylinder 6 is arranged on the left side of the vertical end of the second fixing frame 4, the first air cylinder 3, the second air cylinder 6 and the limiting plate 17 are located on the same vertical surface, the jacking blocks 7 of the jacking ends of the first air cylinder 3 and the second air cylinder 6 are respectively fixed with the test pressing plate 8, the two test probes 10 are detachably arranged on the test pressing plate 8, the air holes of the first air cylinder 3 and the second air cylinder 6 are respectively and correspondingly connected with the regulating valve 12 through the air pipe 11, the air inlet of the regulating valve 12 is connected with the air source switch 13 through the air pipe 11, the input end of the air source switch 13 is connected with the air source 14, the test probes 10 are respectively connected with the air source 6 through the air pipe 11, the air source 6 and the air source 6 is respectively connected with the air cylinder 6 through the air cylinder 6, the whole wire harness is provided with the small-size and the battery cell is suitable for the whole size and the battery cell is different in size, the size and the battery cell size can be adjusted by the size and the battery cell size, and the battery size can be adjusted easily, and the battery size can be adjusted.

The installation component 5 includes first mounting groove 51 and fastening bolt 52, two first mounting grooves 51 have been seted up to the horizontal end of second mount 4, through fastening bolt 52 demountable installation in the upside of the vertical end of base 1 in the first mounting groove 51, set up second mounting groove 9 on the test clamp plate 8, test probe 10 demountable installation is in this second mounting groove 9, through set up second mounting groove 9 on the test clamp plate 8 to set up demountable test probe 10 in second mounting groove 9, be convenient for install in advance the position of test probe 10.

The data display screen is arranged on the test instrument 15, the measured internal resistance and voltage of the battery are directly displayed on the instrument screen through numerical values, the measurement control is convenient, and the measurement result is more visual.

Working principle: the battery cell to be tested is placed on the upper side of the horizontal plane of the base 1, the rear side of the battery cell is contacted with the front side of the limiting plate 17, the pneumatic switch 13 is opened, the pressure regulating valve 4 is regulated, the air pressure is regulated to a proper size, the positions of the second fixing frame 4 and the test probe 10 are regulated, the test probe 10 can be contacted with two poles of a tested battery under the action of the second air cylinder 6, the measured internal resistance and voltage of the battery are directly displayed on an instrument screen through numerical values, the measurement and control are convenient, the measurement result is more visual, the battery cells with different specifications and sizes are conveniently fixed by arranging the first air cylinder 3 and the second air cylinder 6 on the base 1, the position of the test probe 10 is conveniently pre-installed by arranging the second mounting groove 9, the air pressure is regulated by the regulating valve 12, the fixing of the battery cells with different thicknesses is suitable for the shell, the whole structure is simple, and the application range is wide.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (3)

1. The utility model provides a electricity core internal resistance voltage testing arrangement, includes base, first cylinder, second cylinder and test instrument, its characterized in that: the base is "L" type structure, the left side of the vertical end of base is fixed with the limiting plate, the upside of the horizontal end of base is fixed with first mount, the upside of the vertical end of base is through installing the subassembly demountable installation has the second mount, first mount and second mount are "L" type structure, first cylinder is installed to the upside of the horizontal end of first mount, the second cylinder is installed in the left side of the vertical end of second mount, first cylinder, second cylinder and limiting plate are located same vertical face, the flexible end of first cylinder and second cylinder all is fixed with the kicking block, the kicking block bottom of the flexible end of second cylinder is fixed with test clamp plate, demountable installation has two test probes on the test clamp plate, the gas pocket punishment of first cylinder and second cylinder is connected with the governing valve through the trachea correspondence, the air inlet of governing valve is connected with pneumatic switch through the trachea, the input of pneumatic switch is connected with the air supply, the test probe is connected with the test instrument through the wire harness through the conduction assembly respectively.

2. The device for testing the internal resistance voltage of a battery cell according to claim 1, wherein: the mounting assembly comprises a first mounting groove and fastening bolts, two first mounting grooves are formed in the horizontal end of the second fixing frame, the first mounting grooves are detachably mounted on the upper side of the vertical end of the base through the fastening bolts, a second mounting groove is formed in the test pressing plate, and the test probe is detachably mounted in the second mounting groove.

3. The device for testing the internal resistance voltage of a battery cell according to claim 1, wherein: and a data display screen is arranged on the test instrument.