CN218099317U - Cylindrical battery test fixture - Google Patents

Abstract

The utility model relates to the technical field of battery production, and proposes a cylindrical battery test fixture, including a support plate, a bracket, a carrier plate, an upper probe, a lower probe, and a positioning block, wherein the bracket is fixed on the support plate; the carrier plate and The bracket is slidingly fitted and connected; the carrier plate is provided with a detachable upper probe, the upper probe penetrates the installation groove on the carrier plate, and the detection end of the upper probe faces the support plate; the support plate is provided with a detachable lower probe, The lower probe runs through the through hole on the support plate, and the detection end of the lower probe faces the detection end of the upper probe; the positioning block is detachably installed on the support plate, and the positioning block is provided with a mounting hole; through the setting of the above structure , the carrier board can drive the upper probe to adjust the up and down displacement, so it is convenient to detect batteries of different heights, and the positioning block is detachable, so it is easy to replace the positioning blocks with different sizes of mounting holes, so as to be suitable for positioning batteries of different thicknesses , thereby further improving the scope of application of the fixture.

Description

A cylindrical battery test fixture

technical field

The utility model relates to the technical field of battery production, in particular to a cylindrical battery test fixture.

Background technique

According to its shape, batteries can be mainly divided into cylindrical batteries, square batteries and pouch batteries. Among them, cylindrical batteries are batteries with high capacity, long cycle life and wide temperature range. With the continuous improvement of battery technology, cylindrical batteries It is widely used in the energy supply of new energy vehicles. After the battery is assembled, it is necessary to use a specific test fixture to test the battery's rate performance, cycle performance, high and low temperature performance, etc. to confirm whether it meets the parameter standards.

The existing utility model patent with authorized notification number CN214374890U discloses a cylindrical battery test fixture, which includes a fixture bottom plate that acts as an overall support, and the upper end surface of the fixture bottom plate is fixedly connected with a fixture clip for clamping and fixing the cylindrical battery The connecting block and the bottom plate of the fixture are located on both sides of the cylindrical battery and are fixedly connected with a fixed plate. The fixed plate is movably installed with probes that are pressed into contact with the surface of the cylindrical battery for testing.

For example, the battery test fixture in the above technical solution relies on the clamping block to position the battery when fixing the battery. At present, some battery test fixtures are also equipped with a clamping mechanism to position the battery, but its scope of application Smaller; due to the variety of battery models, the height and thickness of the battery usually vary, so a highly versatile battery positioning mechanism is required, and the positive and negative detection probes of the test fixture must be able to adjust the range to adapt to batteries of different heights Testing needs.

Utility model content

In view of this, the utility model proposes a cylindrical battery test fixture with an easy-to-replace positioning mechanism, strong versatility and a wide detection range, so as to solve the problems of poor versatility and small application range of the existing battery test fixture.

The technical solution of the utility model is realized as follows: the utility model provides a cylindrical battery test fixture, including a support plate, a bracket, a carrier plate, an upper probe, a lower probe, a positioning block, a support column and a bottom plate, wherein,

The bracket is fixed on the support plate;

The carrier board is connected with the support by sliding fit, and the carrier board can move up and down relative to the support board;

At least one upper probe is provided on the carrier, the upper probe is detachably connected to the carrier, at least one installation groove is opened on the carrier, and the upper probe passes through the installation slot, the detection end of the upper probe faces the support plate;

At least one lower probe is provided on the support plate, the lower probe is detachably connected to the support plate, at least one through hole is opened on the support plate, and the lower probe passes through the through hole. hole, the detection end of the lower probe faces the detection end of the upper probe;

The positioning block is detachably installed on the support plate, and the positioning block is provided with a mounting hole, the mounting hole is concentric with the through hole, and the diameter of the through hole is smaller than that of the mounting hole. diameter;

The support column is vertically fixed on the side of the support plate away from the carrier plate;

The bottom plate is fixed on the end of the support column away from the carrier plate.

On the basis of the above technical solutions, preferably, the bracket includes an optical axis, a top plate and a sliding seat, wherein,

The optical axis is vertically fixed on the support plate;

The top plate is fixed on the end of the optical axis away from the support plate;

The sliding seat is sleeved on the optical axis, and the carrier plate is fixedly connected with the sliding seat.

On the basis of the above technical solution, preferably, the bracket includes a longitudinal beam, a locking plate and a claw bolt, wherein,

The longitudinal beam is provided with one at both ends of the top plate, one end of the longitudinal beam is fixedly connected to the top plate, and the other end of the longitudinal beam is fixedly connected to the support plate;

A number of threaded holes are provided in a longitudinal array on the longitudinal beam;

One of the locking plates is respectively fixed on the two ends of the carrier plate close to the two longitudinal beams;

There are two claw bolts, each of the two claw bolts passes through one of the locking plates and is screwed and connected with the threaded hole on one of the longitudinal beams.

On the basis of the above technical solution, preferably, the top plate is provided with accommodating holes corresponding to the upper probes.

On the basis of the above technical solution, preferably, the carrier plate is provided with three upper probes, and the three upper probes penetrate the same installation groove.

On the basis of the above technical solution, preferably, two grooves are formed on the side beam formed by opening the installation groove on the carrier plate, and a boss is formed at the middle position of the two grooves.

On the basis of the above technical solution, preferably, the upper probe includes a first fixing frame, the first fixing frame is fixedly connected with the upper probe, and the two ends of the first fixing frame are placed on the On the side beam, the fastener is fixedly connected to the side beam after passing through the first fixing frame.

On the basis of the above technical solution, preferably, the lower probe includes a second fixed beam and a connecting frame, wherein,

The second fixed beam is fixedly connected to the lower probe;

The connecting frame is fixed on a side of the second fixed beam facing the supporting plate, and the connecting frame is fixedly connected with the supporting plate through fasteners.

On the basis of the above technical solutions, preferably, the fastener is a bolt.

On the basis of the above technical solution, preferably, a profiling groove is opened on the support plate, the profiling groove corresponds to the shape of the positioning block, and the positioning block is inserted into the profiling groove.

Compared with the prior art, the cylindrical battery test fixture of the present utility model has the following beneficial effects:

(1) A through hole is provided on the support plate, and a detachable positioning block is also provided. The positioning block is provided with a mounting hole concentric with the through hole. In this way, after the battery is put into the mounting hole, The battery can be tested by using the upper probe and the lower probe. In specific applications, since the positioning block is detachable, it is convenient to replace the positioning block with different sizes of mounting holes to apply to batteries of different thicknesses; secondly, because the upper probe Slidingly connected with the bracket, it can move up and down relative to the support plate, so as to facilitate the adjustment of the relative distance between the upper probe and the lower probe, so as to facilitate the detection of batteries of different heights, so that the battery test fixture has a wider range scope of application;

(2) The displacement of the carrier plate and the upper probe is realized by using the optical axis and the sliding seat. Secondly, longitudinal beams, locking plates and claw bolts are also provided. After the carrier plate is displaced, locking the claw bolts can realize the displacement of the carrier plate and the upper probe. The relative position of the optical axis is fixed to ensure a more stable connection between the upper probe and the lower probe and the battery, which is conducive to ensuring the detection effect;

(3) The test fixture can be equipped with a plurality of upper probes, so that it is convenient to detect the positive and negative batteries with the same terminal, which further improves the scope of application of the fixture.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

1 is a perspective view of a cylindrical battery test fixture of the present invention;

Fig. 2 is the front view of the cylindrical battery test fixture of the present invention;

Fig. 3 is the rear structural diagram of the cylindrical battery test fixture of the present invention;

Fig. 4 is an exploded view of the cylindrical battery test fixture of the present invention;

Fig. 5 is a structural diagram of the carrier plate of the cylindrical battery test fixture of the present invention;

Fig. 6 is a diagram of the installation structure of the lower probe of the cylindrical battery test fixture of the present invention;

Fig. 7 is a structural diagram of point A of the cylindrical battery test fixture of the present invention;

Figure 8 is a test structure diagram of batteries with different positive and negative terminals;

Figure 9 is a test composition of positive and negative batteries with the same terminal;

In the figure: support plate 1, through hole 101, profiling groove 102, bracket 2, optical axis 201, top plate 202, accommodation hole 2021, sliding seat 203, longitudinal beam 204, threaded hole 2041, locking plate 205, horn bolt 206, carrier plate 3, installation groove 301, side beam 302, groove 303, boss 304, upper probe 4, first fixed frame 401, lower probe 5, second fixed beam 501, connecting frame 502, positioning block 6. Mounting hole 601 , support column 7 , base plate 8 .

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 to 9, the cylindrical battery test fixture of the present invention is used for the detection of battery S, which includes a support plate 1, a bracket 2, a carrier plate 3, an upper probe 4, a lower probe 5, and a positioning block 6. Support column 7 and base plate 8.

Wherein, the bracket 2 is fixed on the support plate 1; the carrier plate 3 is slidingly fitted with the bracket 2, and the carrier plate 3 can move up and down relative to the support plate 1; the carrier plate 3 is provided with at least one upper probe 4, the upper probe 4 It is detachably connected with the carrier plate 3, and the carrier plate 3 is provided with at least one installation groove 301, the upper probe 4 penetrates the installation groove 301, and the detection end of the upper probe 4 faces the support plate 1; the support plate 1 is provided with at least one lower probe The probe 5, the lower probe 5 is detachably connected to the support plate 1, the support plate 1 is provided with at least one through hole 101, the lower probe 5 runs through the through hole 101, and the detection end of the lower probe 5 faces the end of the upper probe 4. detection end;

As described above, the carrier board 3 can drive the upper probe 4 to move up and down, so as to change the relative distance between the upper probe 4 and the lower probe 5, so that the device is convenient for detecting batteries S of different heights, and effectively improves the performance of the device. Versatility of the device;

Specifically, as shown in Figure 3, the bracket 2 includes an optical axis 201, a top plate 202 and a slide seat 203, wherein the optical axis 201 is vertically fixed on the support plate 1; the top plate 202 is fixed on the end of the optical axis 201 away from the support plate 1 upper; the sliding seat 203 is sleeved on the optical axis 201, and the carrier plate 3 is fixedly connected with the sliding seat 203; thus, the carrier plate 3 and the upper probe 4 can move up and down through the cooperation of the sliding seat 203 and the optical axis 201. The structure of 2 is a conventional support structure, its overall structure is simple, the number of parts is small, and it has the advantages of convenient assembly and reliable operation;

As shown in FIG. 3 , in order to avoid interference between the upper probe 4 and the top plate 202 when the carrier plate 3 moves upward, the top plate 202 is provided with a corresponding accommodating hole 2021 for the upper probe 4 so that the upper probe 4 moves upward. It can pass through the carrier plate 3 during the displacement, and can increase the displacement stroke of the upper probe 4, thereby facilitating the detection of a higher battery S;

In this device, in order to position the battery S, a positioning block 6 is provided. As shown in FIGS. The installation hole 601 is arranged concentrically with the through hole 101, and the diameter of the through hole 101 is smaller than the diameter of the installation hole 601;

According to the above structure, the positioning block 6 is detachably connected to the carrier plate 3. According to the thickness of the battery S product, the positioning block 6 with a different diameter mounting hole 601 can be replaced to adapt to the diameter of the battery S. The battery S is inserted into the mounting hole. 601, so that the fixture can detect batteries S of different thicknesses, which further improves the versatility of the device and has a wide range of application; since the diameter of the through hole 101 is smaller than the diameter of the mounting hole 601, the support plate 1. The battery can be supported to prevent the lower probe 5 from bearing the weight of the battery S;

Specifically, as shown in Figure 4, a profiling groove 102 is provided on the support plate 1, and the profiling groove 102 corresponds to the shape of the positioning block 6, and the positioning block 6 is inserted in the profiling groove 102; thus, the positioning block 6 It can be quickly plugged and replaced. Of course, in order to further improve the stability of the positioning block 6 and prevent the positioning block 6 from shaking and coming out when taking and placing the battery S, after the positioning block 6 is installed into the profiling groove 102, it can be tightened with screws, bolts, etc. Firmware to locate;

As shown in Figures 1 to 4, the support column 7 is vertically fixed on the side of the support plate 1 away from the carrier plate 3; the base plate 8 is fixed on the end of the support column 7 away from the carrier plate 3; the support column 7 and the base plate 8 are used for this The support of the test fixture is fixed for use.

In this embodiment, as a preferred manner, as shown in FIG. 4 , the bracket 2 includes a longitudinal beam 204, a locking plate 205, and a claw bolt 206, wherein the longitudinal beam 204 is provided with one at both ends of the top plate 202, One end of the longitudinal beam 204 is fixedly connected to the top plate 202, and the other end of the longitudinal beam 204 is fixedly connected to the support plate 1; several threaded holes 2041 are provided in a longitudinal array on the longitudinal beam 204; One is fixed at both ends of the longitudinal beam 204; two horn bolts 206 are provided, each of the two horn bolts 206 runs through a locking plate 205 and is screwed and connected with a threaded hole 2041 on a longitudinal beam 204;

As in the above structure, since the carrier plate 3 drives the upper probe 4 to move along the optical axis 201 through the sliding seat 203, the upper probe 4 is held against the battery S by the weight of the carrier plate 3 and its own weight, and the connection may be unstable. , in order to avoid affecting the detection accuracy, a claw bolt 206 and a locking plate 205 are provided. After the claw bolt 206 and the threaded hole 2041 are tightened, the claw bolt 206 and the longitudinal beam 204 will clamp and fix the locking plate 205, so that the carrier plate 3 The position of the optical axis 201 and the longitudinal beam 204 is relatively fixed, which can ensure the stability of the connection between the upper and lower probes and the battery S;

Of course, the carrier plate 3 in this device can also be moved up and down by the cooperation of the nut base, the screw mandrel and the motor, or driven by telescopic devices such as electric push rods, which are all common existing components. The mentioned cooperation It is also a prior art solution.

In this embodiment, as a preferred manner, as shown in Figures 1-4, three upper probes 4 are arranged on the carrier board 3, and the three upper probes 4 penetrate the same installation groove 301;

Since there are several types of batteries S, it is more common that the positive and negative poles are located at both ends of the battery S, such as battery S1 shown in Figure 8, when testing battery S1, the upper probe located in the middle of the three upper probes 4 4 Hold the positive pole of the battery S1, and test by pressing the lower probe 5 against the negative pole of the battery S1;

The second type of battery is battery S2 with positive and negative terminals at the same end. As shown in Figure 9, the structure of this type of battery is similar to that of a battery with different terminals for positive and negative electrodes. Among the three upper probes 4, the upper probe 4 in the middle is against the positive pole of the battery S2, and the other two upper probes 4 are against the negative pole of the battery S2 for detection; the setting of the above structure improves the test fixture. scope of application;

Since the positive pole of battery S2 with positive and negative poles at the same end is higher than the negative pole, although the current probe has a spring that can be stretched, it is difficult to avoid excessive compression of the spring and exert excessive pressure on the positive pole of battery S2. Therefore, as shown in the figure 5, two grooves 303 are formed on the side beam 302 formed by opening the installation groove 301 on the carrier plate 3, and a boss 304 is formed at the middle position of the two grooves 303; thus, the three upper probes 4 The upper probe 4 in the middle has a higher height, while the other two upper probes 4 have a lower height, corresponding to the height of the positive and negative electrodes of the battery S2, so as to avoid excessive pressure on the battery.

In this embodiment, as a preferred manner, as shown in Figure 6 and Figure 7, the upper probe 4 includes a first fixing frame 401, the first fixing frame 401 is fixedly connected with the upper probe 4, and the first fixing frame 401 Place the two ends of the side beam 302 on the side beam 302, and the fastener passes through the first fixing frame 401 and is fixedly connected with the side beam 302;

The lower probe 5 includes a second fixed beam 501 and a connecting frame 502, wherein the second fixed beam 501 is fixedly connected with the lower probe 5; the connecting frame 502 is fixed on the side of the second fixed beam 501 facing the support plate 1, and the connecting frame 502 is fixedly connected with the support plate 1 through fasteners;

The setting of the above structure makes the upper probe 4 and the lower probe 5 easy to disassemble and replace, so as to adjust according to the type of battery S to be detected, and the unused probes can be removed to prevent the interference detection work. When the needle is damaged, it is beneficial to the maintenance work. In order to improve the convenience of disassembly, the above-mentioned fasteners adopt bolts.

Specific implementation steps:

When testing the battery S, firstly, according to the thickness of the battery S, select the positioning block 6 to be installed in the profiling groove 102, the diameter of the mounting hole 601 of the positioning block 6 corresponds to the diameter of the battery S, and then move the carrier plate 3 up to place the battery S Enter the installation hole 601, when testing the battery S1 with different positive and negative terminals, the negative pole of the battery S1 is held against the lower probe 5, and the carrier plate 3 is slowly moved down so that the upper probe 4 is held against the positive pole of the battery S1, and then locked. Tighten the horn bolts 206 to position the carrier plate 3, and then detect it;

The installation steps of the battery S2 with positive and negative terminals are the same as above, and the electrode of the battery S2 is installed upwards. When testing, the upper probe 4 in the middle of the three upper probes 4 is used to resist the positive pole of the battery S2, and the other two upper probes 4 are used to resist the positive pole of the battery S2. The probe 4 can be pressed against the negative electrode of the battery S2 for detection.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (10)

1. A cylindrical battery test fixture, characterized in that it includes a support plate (1), a bracket (2), a carrier plate (3), an upper probe (4), a lower probe (5), and a positioning block (6) , support column (7) and base plate (8), wherein, The bracket (2) is fixed on the support plate (1); The carrier plate (3) is slidingly fitted and connected to the bracket (2), and the carrier plate (3) can move up and down relative to the support plate (1); At least one upper probe (4) is arranged on the carrier (3), the upper probe (4) is detachably connected to the carrier (3), and at least one An installation groove (301) is opened, the upper probe (4) runs through the installation groove (301), and the detection end of the upper probe (4) faces the support plate (1); At least one lower probe (5) is arranged on the support plate (1), the lower probe (5) is detachably connected to the support plate (1), and the support plate (1) is provided with There is at least one through hole (101), the lower probe (5) runs through the through hole (101), and the detection end of the lower probe (5) faces the detection end of the upper probe (4); The positioning block (6) is detachably installed on the support plate (1), and the positioning block (6) is provided with a mounting hole (601), the mounting hole (601) and the through hole (101) arranged concentrically, the diameter of the through hole (101) is smaller than the diameter of the installation hole (601); The support column (7) is vertically fixed on the side of the support plate (1) away from the carrier plate (3); The bottom plate (8) is fixed on the end of the support column (7) away from the carrier plate (3). 2. The cylindrical battery test fixture according to claim 1, characterized in that: the bracket (2) includes an optical axis (201), a top plate (202) and a sliding seat (203), wherein, The optical axis (201) is vertically fixed on the support plate (1); The top plate (202) is fixed on the end of the optical axis (201) away from the support plate (1); The sliding seat (203) is sleeved on the optical axis (201), and the carrier plate (3) is fixedly connected with the sliding seat (203). 3. The cylindrical battery test fixture according to claim 2, characterized in that: the bracket (2) includes a longitudinal beam (204), a locking plate (205) and a claw bolt (206), wherein, The longitudinal beams (204) are provided with one at both ends of the top plate (202), one end of the longitudinal beams (204) is fixedly connected to the top plate (202), and the other end of the longitudinal beams (204) One end is fixedly connected to the support plate (1); several threaded holes (2041) are provided in a longitudinal array on the longitudinal beam (204); One of the locking plates (205) is respectively fixed on the two ends of the carrier plate (3) close to the two longitudinal beams (204); Described claw bolt (206) is provided with two, and two described claw bolts (206) respectively pass through one described locking plate (205) and each described threaded hole ( 2041) screw connection. 4. The cylindrical battery test fixture according to claim 2, characterized in that: the top plate (202) is provided with accommodating holes (2021) corresponding to the upper probes (4). 5. The cylindrical battery test fixture according to claim 1, characterized in that: the carrier plate (3) is provided with three upper probes (4), and the three upper probes (4) run through the same One said installation groove (301). 6. The cylindrical battery test fixture according to claim 5, characterized in that two grooves (303) are opened on the side beam (302) formed by opening the installation groove (301) on the carrier plate (3) , the middle position of the two grooves (303) forms a boss (304). 7. The cylindrical battery test fixture according to claim 6, characterized in that: the upper probe (4) comprises a first fixing frame (401), and the first fixing frame (401) is connected to the upper probe (4) Fixed connection, the two ends of the first fixed frame (401) are placed on the side beam (302), and the fasteners pass through the first fixed frame (401) and connect with the side beam (302) ) fixed connection. 8. The cylindrical battery test fixture according to claim 1, characterized in that: the lower probe (5) comprises a second fixed beam (501) and a connecting frame (502), wherein, The second fixed beam (501) is fixedly connected to the lower probe (5); The connecting frame (502) is fixed on the side of the second fixed beam (501) facing the supporting plate (1), and the connecting frame (502) is fixed to the supporting plate (1) by fasteners connect. 9. The cylindrical battery test fixture according to claim 7 or 8, wherein the fastener is a bolt. 10. The cylindrical battery test fixture according to claim 1, characterized in that: the support plate (1) is provided with a profiling groove (102), and the profiling groove (102) corresponds to the positioning block (6 ), the positioning block (6) is inserted into the profiling groove (102).

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