CN218298463U - Battery testing device - Google Patents

Abstract

The utility model relates to the technical field of photovoltaic power generation, and specifically discloses a battery testing device. The battery testing device provided by the utility model uses a test copper wire instead of a probe to test the working efficiency of the battery. The test copper wire is relatively thin, and an elastic buffer assembly is arranged at both ends of the test copper wire to fix the test copper wire. Block the light, improve the test accuracy, and facilitate the assembly, shorten the assembly time; use a test copper wire instead of a probe row, not only easy to install, but also improve the consistency of the test copper wire installation, thereby improving the test accuracy The service life of the test copper wire is longer than that of the probe, which reduces the maintenance cost; during the test, the elastic buffer component can keep the test copper wire in good contact with the battery, and when the test copper wire is stressed, the test copper wire is in good contact with the battery. Under the action of the elastic buffer component, it can be buffered and deformed to prevent the test copper wire from breaking.

Description

battery test device

technical field

The utility model relates to the technical field of photovoltaic power generation, in particular to a battery testing device.

Background technique

Due to the rapid growth of photovoltaic module market demand, power station investors have higher and higher requirements for the efficiency and power of photovoltaic modules. Conventional photovoltaic modules are gradually withdrawing from the competitive market, and half-cell photovoltaic modules, as a high-power photovoltaic Modules have begun to be widely used and researched; the existing half-cell photovoltaic modules are usually cut into two halves by laser scribing, and the half-cut cells are connected in series, and then connected in parallel It is made into a half-cut photovoltaic module, so the half-cut photovoltaic module can effectively reduce the current mismatch of the cells in the module, and the current loss within the module itself is reduced, so the output power of the half-cut photovoltaic module is higher than that of the same type of full-piece photovoltaic module About 10W, and has the advantages of low temperature coefficient and good low light.

Before the half-cell battery leaves the factory, it is necessary to test the working efficiency of the half-cell battery. The test device in the prior art is a probe row composed of multiple probes, and the number of probe rows is relatively large. Use this device to test the existence of The following problems: 1. Due to the need to assemble multiple probes, it is not only time-consuming but also difficult to ensure the consistency of the assembled dimensions of multiple probes, which will affect the test results; 2. Since the probes are vulnerable parts, they need to be replaced regularly. The probes will affect the production efficiency and also increase the maintenance cost; 3. The fixing of the probe row and the probe row will block the light and affect the test effect.

Therefore, there is an urgent need to provide a battery testing device to solve the above technical problems.

Utility model content

The purpose of the utility model is to provide a battery test device, which improves the test accuracy, prolongs the service life, and reduces the cost of copper wire replacement.

For this purpose, the utility model adopts the following technical solutions:

The battery test device includes a test unit, the test unit includes a plurality of test copper wires arranged at intervals, and the two ends of each test copper wire are respectively connected with a first elastic buffer assembly and a second elastic buffer assembly, the first elastic buffer assembly The elastic buffer component and the second elastic buffer component can make the test copper wire tense, and when the test copper wire abuts against the surface to be tested of the battery, it is buffered in a direction perpendicular to the battery.

As an optional technical solution of the above-mentioned battery testing device, each of the test copper wires is respectively provided with two spaced apart guide wheels, and the two ends of the test copper wires are respectively wound with the corresponding guide wheels. Afterwards, it is connected with the first elastic buffer assembly and the second elastic buffer assembly, and the guide wheel is arranged lower than the first elastic buffer assembly and the second elastic buffer assembly.

As an optional technical solution of the above-mentioned battery testing device, the test unit further includes a length adjustment component, and the length adjustment component is connected to at least one of the first elastic buffer component and the second elastic buffer component , the length adjustment component is configured to adjust the length of the test copper wire.

As an optional technical solution of the above-mentioned battery testing device, the first elastic buffer component includes:

A first copper wire fixing part, the first copper wire fixing part is provided with a first guide groove;

a first copper wire locking member, the first end of the first copper wire locking member is slidably disposed in the first guide groove;

The first elastic member is arranged in the first guide groove, the first end of the first elastic member abuts against the groove bottom of the first guide groove, and the second end of the first elastic member abuts against at the first end of the first copper wire locking member;

The first end of the test copper wire passes through the first copper wire fixing member and the first elastic member in sequence and is fixedly connected to the first copper wire locking member.

As an optional technical solution of the above battery testing device, the second elastic buffer component is connected to the length adjustment component.

As an optional technical solution of the above battery testing device, the second elastic buffer assembly includes:

The second copper wire fixing part, the second copper wire fixing part is provided with a second guide groove, the length adjustment component is threadedly connected with the second guide groove, and the length adjustment component is provided with a third guide groove ;

a second copper wire locking member, the first end of the second copper wire locking member is slidably disposed in the third guide groove;

The second elastic member is arranged in the third guide groove, the first end of the second elastic member abuts against the groove bottom of the third guide groove, and the second end of the second elastic member abuts against at the first end of the second copper wire locking member;

The second end of the test copper wire passes through the second copper wire fixing member, the length adjustment assembly and the second elastic member in sequence and is fixedly connected to the second copper wire locking member.

As an optional technical solution of the above-mentioned battery testing device, the length adjustment assembly includes a copper wire tensioning member, the first end of the copper wire tensioning member is screwed to the second guide groove, and the copper wire tensioning member The second end of the wire tension member is provided with a third guide groove.

As an optional technical solution of the above-mentioned battery testing device, a lock nut is screwed to the second end of the copper wire tensioning member, and the lock nut can abut against the second copper wire fixing member.

As an optional technical solution of the above-mentioned battery testing device, the second end of the second copper wire locking member extends from the end to the first end to form an L-shaped step surface, and the step surface is provided with a lock A tightening block, the locking block is detachably connected to the second copper wire locking member, the test copper wire can pass through the second copper wire locking member and be fixed on the locking block and the second copper wire locking member Between the second copper wire locking parts.

As an optional technical solution of the above battery testing device, the battery testing device includes at least two test units, the two test units are arranged side by side along the length direction of the test copper wire, and the two test units There is a one-to-one correspondence between the test copper wires of the test units.

The beneficial effects of the utility model:

The battery test device provided by the utility model uses test copper wires instead of probes to test the working efficiency of the battery. The test copper wires are relatively thin, and elastic buffer components are arranged at both ends of the test copper wires to fix the test copper wires, which will not Block the light, improve the test accuracy, and facilitate the assembly, shorten the assembly time; use a test copper wire instead of a probe row, not only easy to install, but also improve the consistency of the test copper wire installation, thereby improving the test accuracy The service life of the test copper wire is longer than that of the probe, which reduces the maintenance cost; during the test, the elastic buffer component can keep the test copper wire in good contact with the battery, and when the test copper wire is stressed, the test copper wire is in good contact with the battery. Under the action of the elastic buffer component, it can be buffered and deformed to prevent the test copper wire from breaking.

Description of drawings

Fig. 1 is a schematic structural view of a battery testing device provided by an embodiment of the present invention;

Fig. 2 is a schematic structural view of the A-A direction in Fig. 1;

Fig. 3 is the enlarged schematic view of the local structure at B of Fig. 2;

FIG. 4 is an enlarged schematic diagram of a local structure at point C in FIG. 2 .

In the picture:

100, test unit; 200, battery;

1. Test copper wire; 2. The first elastic buffer component; 3. The second elastic buffer component; 4. Guide wheel; 5. Length adjustment component; 6. Mounting frame;

21. The first copper wire fixing piece; 22. The first guide groove; 23. The first copper wire locking piece; 24. The first elastic piece;

31. The second copper wire fixing piece; 32. The second guide groove; 33. The second copper wire locking piece; 34. The second elastic piece; 35. The locking block;

51. The third guide groove; 52. The copper wire tensioner; 53. The locking nut; 54. The flange.

detailed description

In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only Some embodiments of the utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

In the description of the present utility model, unless otherwise clearly stipulated and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or a Integral; it can be mechanically or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Aiming at the problems in the prior art of using the probes to test the working efficiency of the battery, the accuracy of the test results is low, the service life of the probes is short, and the efficiency of assembling the probes is low. This embodiment provides a battery testing device to solve the above technical problems.

Specifically, as shown in FIG. 1 and FIG. 2 , the battery testing device provided in this embodiment includes a testing unit 100, and at least two testing units 100, and the two testing units 100 are arranged side by side along the length direction of the test copper wire 1, And the test copper wires of the two test units 100 correspond one to one. Since the battery 200 provided in this embodiment is a half-sheet battery, consisting of two half-sheets, in order to improve the test efficiency and test accuracy, two test units 100 are provided, and the two test units 100 are arranged side by side along the length direction of the test copper wire 1, and There is a one-to-one correspondence between the test copper wires 1 of the two test units 100 . When testing a half-cell battery, two test units 100 simultaneously test the two halves of a half-cell battery.

The test unit 100 includes several test copper wires 1 arranged at intervals, and one test copper wire 1 replaces one probe row in the prior art. If one test unit 100 is provided, the entire half-cell battery can be tested at the same time, but the test copper wire 1 will be lengthened, which is inconvenient to adjust the tightness of the test copper wire 1 . Alternatively, a test unit 100 is provided, and the test unit 100 corresponds to one of the half-cells in the half-cell battery, and testing the two halves of a half-cell battery will reduce the test efficiency. Preferably, two test units 100 are provided, without extending the length of the test copper wire 1 , and the two halves of the half battery can be tested simultaneously. The battery testing device provided in this embodiment can also test the whole battery.

The two ends of the test copper wire 1 need to be fixed, specifically, the two ends of each test copper wire 1 are respectively connected with the first elastic buffer component 2 and the second elastic buffer component 3, the first elastic buffer component 2 and the second elastic buffer component The buffer assembly 3 can make the test copper wire 1 tense, and when the test copper wire 1 abuts against the surface to be tested of the battery 200 , it is buffered in a direction perpendicular to the battery 200 .

The battery testing device provided in this embodiment uses a test copper wire 1 instead of a probe to test the working efficiency of the battery 200. The test copper wire 1 is relatively thin, and an elastic buffer assembly is set at both ends of the test copper wire 1 for fixed testing. The copper wire 1 will not block the light, which improves the test accuracy. The test copper wire 1 only needs to be fixed at both ends during installation, which is convenient for assembly and shortens the assembly time; a test copper wire 1 is used instead of a probe row, Not only is it easy to install, but it can also improve the installation consistency of the test copper wire 1, thereby improving the test accuracy; the test copper wire 1 has a longer service life than the probe, which reduces maintenance costs; during the test, the elastic buffer component can make the test copper The wire 1 keeps in good contact with the battery 200, and when the test copper wire 1 is stressed, the test copper wire 1 can be buffered and deformed by the elastic buffer component, preventing the test copper wire 1 from breaking.

In this embodiment, each test copper wire 1 is respectively provided with two spaced apart guide wheels 4, and the two ends of the test copper wire 1 are respectively wound around the corresponding guide wheels 4 to connect with the first elastic buffer assembly 2 and the second elastic buffer assembly 2. The two elastic buffer components 3 are connected, and the guide wheel 4 is arranged lower than the first elastic buffer component 2 and the second elastic buffer component 3 . The setting of the guide wheel 4, the first elastic buffer assembly 2 and the second elastic buffer assembly 3 makes the test copper wire 1 have a U-shaped structure, and the guide wheel 4 plays a guiding role to make the test copper wire 1 smoothly transition, avoiding the test copper wire. 1 was bent during the test, affecting the service life. The test copper wire 1 between the two guide wheels 4 is the part in contact with the surface to be tested of the battery 200 . During the test, the test unit 100 of the battery test device moves down, the test copper wire 1 is pressed against the surface to be tested of the battery 200, the test copper wire 1 is subjected to a reaction force, and then deforms, the first elastic buffer assembly 2 and the second The elastic buffer component 3 can buffer the test copper wire 1 during the deformation process, prevent the test copper wire 1 from breaking due to force, and protect the test copper wire 1 from damage. Moreover, the first elastic buffer component 2 and the second elastic buffer component 3 can also keep the test copper wire 1 in good contact with the battery 200, which improves the stability of the test result.

In order to make the first elastic buffer assembly 2 and the second elastic buffer assembly 3 play a better buffering role in the stress process of the test copper wire 1, the elastic deformation of the first elastic buffer assembly 2 and the second elastic buffer assembly 3 The direction and the test copper wire 1 between the two guide wheels 4 are set at an obtuse angle.

The test copper wire 1 will become loose after being used for a period of time, which will lead to poor contact between the test copper wire 1 and the battery 200 during the test. In order to solve this problem, as shown in Figure 3, the battery test device provided by this embodiment also includes a length adjustment assembly 5. The length adjustment component 5 is connected to at least one of the first elastic buffer component 2 and the second elastic buffer component 3 , and the length adjustment component 5 is configured to adjust the length of the test copper wire 1 .

In order to simplify the structure, one of the first elastic buffer assembly 2 and the second elastic buffer assembly 3 is connected with a length adjustment assembly 5 . Specifically, in this embodiment, the second elastic buffer component 3 is connected with a length adjustment component 5 .

The second elastic buffer assembly 3 specifically includes a second copper wire fixture 31, and the battery testing device also includes a mounting frame 6, the second copper wire fixture 31 is fixed on the mounting frame 6, and the second copper wire fixture 31 is provided with a first Two guide grooves 32, the length adjustment assembly 5 is threadedly connected with the second guide groove 32, the length adjustment assembly 5 is provided with a third guide groove 51, and the third guide groove 51 is provided with a second elastic member 34 and a second copper wire lock Fastener33. Specifically, the first end of the second copper wire locking member 33 is slidably disposed in the third guide groove 51, the first end of the second elastic member 34 abuts against the bottom of the third guide groove 51, and the second elastic member The second end of 34 abuts against the first end of the second copper wire locking member 33 . The second end of the test copper wire 1 passes through the second copper wire fixing member 31 , the length adjustment assembly 5 and the second elastic member 34 in sequence and is fixedly connected to the second copper wire locking member 33 .

When the test copper wire 1 is stressed, the second copper wire locking member 33 slides in the third guide groove 51 and squeezes the second elastic member 34 to provide a buffer for the test copper wire 1, and the second elastic member 34 has a The tendency of the second copper wire locking member 33 to move toward the outside of the third guide groove 51 ensures that the test copper wire 1 can effectively contact the surface to be tested of the battery 200 .

Screw the length adjustment assembly 5 to drive the second copper wire locking member 33 to move to adjust the tension of the test copper wire 1. The structure is simple and easy to operate.

Optionally, the length adjustment assembly 5 includes a copper wire tensioner 52, the first end of the copper wire tensioner 52 is screwed to the second guide groove 32, that is, the outer side wall of the copper wire tensioner 52 is provided with an external thread, The groove wall of the second guide groove 32 is provided with an internal thread screwed with the external thread. The second end of the copper wire tensioning member 52 is provided with a third guide groove 51, the first end of the second copper wire locking member 33 is slidably arranged in the third guide groove 51, and the second elastic member 34 is arranged in the third guide groove 51. In the slot 51 , both ends of the second elastic member 34 abut against the bottom of the third guide slot 51 and the first end of the second copper wire locking member 33 .

In order to facilitate the screwing of the copper wire tensioning member 52 , the second end of the copper wire tensioning member 52 is provided with a flange 54 along the circumferential direction. The flange 54 is integrally formed and connected with the copper wire tension member 52; or a nut is provided at the second end of the copper wire tension member 52, and the nut is fixedly connected with the copper wire tension member 52 to form the flange 54 for manual use. twist.

Optionally, the second end of the copper wire tensioning member 52 is screwed with a locking nut 53 , and the locking nut 53 can abut against the second copper wire fixing member 31 to fix the position of the copper wire tensioning member 52 . Specifically, after the position of the copper wire tensioning member 52 is adjusted, the locking nut 53 is screwed to make the locking nut 53 abut against the second copper wire fixing member 31 , which has a simple structure and is easy to operate.

In this embodiment, the second end of the second copper wire locking member 33 extends from the end to the first end to form an L-shaped step surface, and a locking block 35 is arranged on the step surface, and the locking block 35 is connected to the second end. The copper wire locking piece 33 is detachably connected, and the test copper wire 1 can pass through the second copper wire locking piece 33 and be fixed between the locking block 35 and the second copper wire locking piece 33, which is convenient for disassembly and installation of the lock The tight block 35 , the test copper wire 1 is squeezed and fixed between the locking block 35 and the second copper wire locking member 33 . Optionally, the locking block 35 is connected to the second copper wire locking member 33 through bolts, which is convenient for installation and disassembly.

As shown in Figure 4, the first elastic buffer assembly 2 is not connected to the length adjustment assembly 5, then the structure of the first elastic buffer assembly 2 includes a first copper wire fixing part 21, and the first copper wire fixing part 21 is provided with a first guide The groove 22, the first guide groove 22 is provided with a first elastic member 24 and a first copper wire locking member 23. Specifically, the first end of the first copper wire locking member 23 is slidably disposed in the first guide groove 22, the first end of the first elastic member 24 abuts against the groove bottom of the first guide groove 22, and the first elastic member The second end of 24 abuts against the first end of the first copper wire locking member 23 . The first end of the test copper wire 1 passes through the first copper wire fixing member 21 and the first elastic member 24 in sequence and is fixedly connected to the first copper wire locking member 23 .

When the test copper wire 1 is stressed, the first copper wire locking member 23 slides in the first guide groove 22 and squeezes the first elastic member 24 to provide a buffer for the test copper wire 1, and the first elastic member 24 has a The tendency of the first copper wire locking member 23 to move toward the outside of the first guide groove 22 ensures that the test copper wire 1 can effectively contact the surface to be tested of the battery 200 .

In this embodiment, the first copper wire locking member 23 is a locking block 35 integrally formed with the test copper wire 1. When replacing the test copper wire 1, only the test copper wire fixed by the second copper wire locking member 33 needs to be removed. 1, which simplifies the steps of installing and removing the test copper wire 1.

In some other embodiments, the first copper wire locking member 23 and the second copper wire locking member 33 have the same structure, which will not be repeated here.

If the first elastic buffer assembly 2 is connected to the length adjustment assembly 5, the structure of the first elastic buffer assembly 2 is the same as that of the second elastic buffer assembly 3, and the connection structure between the first elastic buffer assembly 2 and the length adjustment assembly 5 and the second elastic The connection structure of the buffer assembly 3 and the length adjustment assembly 5 is the same, and details are not repeated here.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (10)

1. battery testing device, it is characterized in that, comprises test unit (100), and described test unit (100) comprises the test copper wire (1) that some intervals are arranged, and the two ends of each described test copper wire (1) respectively A first elastic buffer component (2) and a second elastic buffer component (3) are connected, and the first elastic buffer component (2) and the second elastic buffer component (3) can make the test copper wire (1 ) tension, and buffered in a direction perpendicular to the battery (200) when the test copper wire (1) abuts against the surface to be tested of the battery (200). 2. The battery testing device according to claim 1, characterized in that, each of the test copper wires (1) is respectively provided with two spaced apart guide wheels (4), and the test copper wires (1) The two ends of the corresponding guide wheels (4) are respectively wound and connected with the first elastic buffer assembly (2) and the second elastic buffer assembly (3), and the guide wheels (4) are lower than the The first elastic buffer component (2) and the second elastic buffer component (3) are arranged. 3. The battery testing device according to claim 1, characterized in that, the testing unit (100) further comprises a length adjustment assembly (5), and the length adjustment assembly (5) is connected to the first elastic buffer assembly ( 2) Connected to at least one of the second elastic buffer components (3), the length adjustment component (5) is configured to adjust the length of the test copper wire (1). 4. The battery testing device according to claim 3, characterized in that, the first elastic buffer assembly (2) comprises: A first copper wire fixing part (21), the first copper wire fixing part (21) is provided with a first guide groove (22); A first copper wire locking member (23), the first end of the first copper wire locking member (23) is slidably disposed in the first guide groove (22); The first elastic member (24) is arranged in the first guide groove (22), and the first end of the first elastic member (24) abuts against the groove bottom of the first guide groove (22), The second end of the first elastic member (24) abuts against the first end of the first copper wire locking member (23); The first end of the test copper wire (1) passes through the first copper wire fixing member (21) and the first elastic member (24) in sequence and is fixedly connected to the first copper wire locking member (23). 5. The battery testing device according to claim 3, characterized in that, the second elastic buffer component (3) is connected with the length adjustment component (5). 6. The battery testing device according to claim 5, characterized in that, the second elastic buffer assembly (3) comprises: The second copper wire fixing part (31), the second copper wire fixing part (31) is provided with a second guide groove (32), the length adjustment assembly (5) and the second guide groove (32) threaded connection, the length adjustment component (5) is provided with a third guide groove (51); A second copper wire locking member (33), the first end of the second copper wire locking member (33) is slidably disposed in the third guide groove (51); The second elastic member (34) is arranged in the third guide groove (51), the first end of the second elastic member (34) abuts against the groove bottom of the third guide groove (51), The second end of the second elastic member (34) abuts against the first end of the second copper wire locking member (33); The second end of the test copper wire (1) passes through the second copper wire fixing member (31), the length adjustment assembly (5), the second elastic member (34) and the second The copper wire lock piece (33) is fixedly connected. 7. The battery testing device according to claim 6, characterized in that, the length adjustment assembly (5) comprises a copper wire tension member (52), and the first end of the copper wire tension member (52) is connected to The second guide groove (32) is threadedly connected, and the second end of the copper wire tensioning member (52) is provided with a third guide groove (51). 8. The battery testing device according to claim 7, characterized in that, the second end of the copper wire tension member (52) is screwed with a lock nut (53), and the lock nut (53) can Arrest on the second copper wire fixing piece (31). 9. The battery testing device according to claim 6, characterized in that, the second end of the second copper wire locking member (33) extends from the end to the first end with an L-shaped stepped surface, the A locking block (35) is provided on the step surface, and the locking block (35) is detachably connected to the second copper wire locking member (33), and the test copper wire (1) can pass through the The second copper wire locking piece (33) is fixed between the locking block (35) and the second copper wire locking piece (33). 10. The battery testing device according to claim 1, characterized in that, the battery testing device comprises at least two test units (100), and the two test units (100) are along the test copper wire ( 1) are arranged side by side in the length direction, and the test copper wires (1) of the two test units (100) are in one-to-one correspondence.

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