CN205911375U - A lithium battery aluminum-plastic film packaging machine with on-line insulation detection function - Google Patents

Abstract

The utility model discloses a lithium cell plastic-aluminum membrane packaging machine with on-line insulation detects function, in operation, the upper cover base drives upper cover and first insulation support downstream together, the lower cover base drives the up-motion together of low head and second insulation support, upper cover and low head carry out the heat-seal to the plastic-aluminum membrane on the lithium cell side jointly, positive pole utmost point ear contact on first conductive probe and the lithium cell, negative pole utmost point ear contact on second conductive probe and the lithium cell, and the third conductive probe pierces into in the plastic-aluminum membrane rather than the aluminium lamination contact, the internal short circuit of first insulation resistance tester to the lithium cell detects, whether aluminium lamination and the negative pole utmost point ear short circuit in the second insulation resistance tester to the lithium cell detect. The present case has realized carrying out online insulation detection's function when lithium cell plastic-aluminum membrane encapsulation, and it detects convenient and practical, and reducible encapsulation back adopts the manual work to come to carry out the cost of an insulation test and can reduce the probability of erroneous judgement to the lithium cell, is favorable to improving work efficiency.

Description

A lithium battery aluminum-plastic film packaging machine with on-line insulation detection function

[technical field]

The utility model relates to a lithium battery aluminum-plastic film packaging machine with an on-line insulation detection function.

[Background technique]

Compared with other types of batteries such as lead-acid and nickel-cadmium, lithium-ion batteries have the advantages of large capacity, high operating voltage, fast charging speed, wide operating temperature range, long cycle life, small size, and light weight. At present, lithium-ion batteries have been widely used in mobile phones, notebook computers, electric tools and other fields, and their application range is becoming wider and wider.

At present, lithium-ion batteries are most widely packaged in aluminum-plastic film flexible packaging. Soft-packed lithium batteries have great advantages over batteries with other packaging structures. After the battery is charged, the aluminum layer is corroded, so in the production process of flexible packaging lithium batteries, several procedures will be added to detect whether the aluminum-plastic film is short-circuited with the negative tab. At the same time, another defect of lithium-ion batteries is internal short circuit. , The burrs on the positive and negative pole pieces of the battery, dust and defects on the separator will all cause internal short circuits, so the internal inspection process is also required to pick out defective products. Most soft-pack lithium-ion battery manufacturers will set up a manual inspection process for short-circuiting between the aluminum-plastic film and the negative electrode tab and the internal short-circuit of the battery after the battery top-sealing process. And employees have high requirements for responsibility, and many defective products are often not detected.

Therefore, how to overcome the above existing defects has become an important issue to be solved urgently by those skilled in the art.

[utility model content]

The utility model overcomes the disadvantages of the above-mentioned technologies, and provides an aluminum-plastic film packaging machine for lithium batteries with the function of on-line insulation detection, which facilitates the on-line insulation detection of lithium batteries during packaging.

In order to achieve the above object, the utility model adopts the following technical solutions:

A lithium battery aluminum-plastic film packaging machine with an online insulation detection function, comprising an upper head base 1 and a lower head base 2, the upper head base 1 is connected to a first insulating The support 11 is connected to the upper head 12 for encapsulating the aluminum-plastic film 4 on the side of the lithium battery 3 in the downward direction, and the lower head base 2 is connected to the second insulating support 21 in the side direction and connected in the upward direction. On the lower head 22 of the aluminum-plastic film 4 on the side of the package lithium battery 3, a workbench 5 is provided between the first insulating support 11 and the second insulating support 21, and the first insulating support 11 is provided with a The first conductive probe 61 that is in contact with the positive pole tab 31 on the lithium battery 3 and the second conductive probe 62 that is used to contact the negative pole tab 32 on the lithium battery 3 and that is used to contact the aluminum layer in the aluminum-plastic film 4 The third conductive probe 63, the first insulation resistance tester 71 is electrically connected between the first conductive probe 61 and the second conductive probe 62, the second conductive probe 62 and the third conductive probe A second insulation resistance tester 72 is electrically connected between the needles 63, and the second insulation support 21 is provided with an insulation device for facilitating the insertion of the third conductive probe 63 into the aluminum-plastic film 4 to contact the aluminum layer. Upholstered blocks8.

As mentioned above, a lithium battery aluminum-plastic film packaging machine with an online insulation detection function, the first conductive probe 61 and the second conductive probe 62 can both move on the first insulating support 11 .

As mentioned above, a lithium battery aluminum-plastic film packaging machine with an online insulation detection function, the first insulating bracket 11 is provided with a horizontal guide groove 111, and the horizontal guide groove 111 is respectively connected with a first Needle base 611, second needle base 621, and third needle base 631, the first conductive probe 61 is mounted on the first needle base 611, the second conductive probe 62 is mounted on the second On the needle seat 621 , the third conductive probe 63 is mounted on the third needle seat 631 .

As mentioned above, a lithium battery aluminum-plastic film packaging machine with online insulation detection function, the first conductive probe 61 is elastically connected to the first needle base 611 through the first spring 612, and the second The conductive probe 62 is elastically connected to the second needle base 621 through the second spring 622 .

As mentioned above, a lithium battery aluminum-plastic film packaging machine with an online insulation detection function, the first insulating bracket 11 at the notch of the horizontal guide groove 111 is provided with a scale parallel to the horizontal guide groove 111 112.

Compared with the prior art, the beneficial effects of the utility model are:

1. In this case, the online insulation detection of the lithium battery can be carried out during packaging. When working, the upper head base drives the upper head and the first insulating support to move downward together, and the lower head base drives the The lower head and the second insulating support move upward together, and the upper head and the lower head jointly heat-seal the aluminum-plastic film on the side of the lithium battery. At this time, the first conductive probe and the upper positive electrode of the lithium battery Tab contact, the second conductive probe is in contact with the negative pole tab on the lithium battery, and the third conductive probe penetrates into the aluminum-plastic film and contacts its aluminum layer, so that the first insulation resistance tester Detect the internal short circuit of the lithium battery, that is, detect whether the positive pole tab and the negative pole tab are short-circuited. The second insulation resistance tester detects whether the aluminum layer in the lithium battery and the negative pole tab are short-circuited. If the first insulation resistance If the tester emits a short-circuit beeping alarm, the lithium battery is an internal short circuit. If the second insulation resistance tester emits a short-circuit beeping alarm, the lithium battery is a short circuit between the negative electrode tab and the aluminum layer in the aluminum-plastic film. , when the above problems are found, the defective products will be taken out after the packaging is completed for repairing, etc. This case realizes the function of online insulation testing while the lithium battery is packaged with aluminum-plastic film. The cost of conducting insulation tests on lithium batteries one by one can reduce the probability of misjudgment, which is conducive to improving work efficiency.

2. Both the first conductive probe and the second conductive probe can move on the first insulating support, so that, during practical implementation, the first conductive probe can be adjusted to face the positive electrode below it Ear and the negative electrode ear that the second conductive probe faces below it, so that the first conductive probe can be connected with the positive electrode ear and the second conductive probe can be connected with the positive electrode ear when the aluminum-plastic film is packaged. The negative electrode lug contacts.

3. The first conductive probe is elastically connected to the first needle base through the first spring, and the second conductive probe is elastically connected to the second needle base through the second spring, so that when the When the first insulating support moves downward, the first conductive probe moves downward and comes into elastic contact with the positive tab, and the second conductive probe moves down and elastically contacts the negative tab, In this way, it is beneficial to ensure that the contact is in place without crushing the tabs.

[Description of drawings]

Fig. 1 is the structural representation of this case.

Fig. 2 is a specific schematic diagram of the first insulating support in this case.

[detailed description]

The features of the utility model and other relevant features are further described in detail below in conjunction with the accompanying drawings through the embodiments, so as to facilitate the understanding of those skilled in the art:

As shown in Figure 1, a lithium battery aluminum-plastic film packaging machine with an on-line insulation detection function includes an upper head base 1 and a lower head base 2, and the upper head base 1 faces sideways The first insulating support 11 is connected in the direction and the upper head 12 for encapsulating the aluminum-plastic film 4 on the side of the lithium battery 3 is connected in the downward direction, and the lower head base 2 is connected with the second insulating support in the side direction. 21 and the lower head 22 for encapsulating the aluminum-plastic film 4 on the side of the lithium battery 3 are connected to the upward direction. A workbench 5 is arranged between the first insulating support 11 and the second insulating support 21. The first insulating support The bracket 11 is provided with a first conductive probe 61 for contacting the positive pole tab 31 on the lithium battery 3, a second conductive probe 62 for contacting the negative pole tab 32 on the lithium battery 3, and a second conductive probe 62 for contacting the aluminum plastic film. The third conductive probe 63 in contact with the aluminum layer in 4, a first insulation resistance tester 71 is electrically connected between the first conductive probe 61 and the second conductive probe 62, and the second conductive probe 62 and the third conductive probe 63 are electrically connected with a second insulation resistance tester 72, and the second insulating support 21 is provided with a device to facilitate the third conductive probe 63 to penetrate into the aluminum-plastic film 4 to Insulating upholstery block 8 in contact with the aluminum layer.

As mentioned above, this case works as follows:

When working, the upper head base 1 drives the upper head 12 and the first insulating support 11 to move downward together, and the lower head base 2 drives the lower head 22 and the second insulating support 21 Moving upward together, the upper sealing head 12 and the lower sealing head 22 jointly heat-seal the aluminum-plastic film 4 on the side of the lithium battery 3. At this time, the first conductive probe 61 and the positive electrode tab on the lithium battery 3 31 contact, the second conductive probe 62 is in contact with the negative electrode tab 32 on the lithium battery 3, and the third conductive probe 63 penetrates into the aluminum-plastic film 4 and contacts its aluminum layer, so that the first An insulation resistance tester 71 detects the internal short circuit of the lithium battery 3, that is, detects whether the positive pole tab 31 and the negative pole tab 32 are short-circuited. Whether the ear 32 is short-circuited is detected. If the first insulation resistance tester 71 sends a short-circuit buzzer alarm, the lithium battery 3 is internally short-circuited. If the second insulation resistance tester 72 sends a short-circuit buzzer alarm, then The lithium battery 3 is a short circuit between the negative electrode tab 32 and the aluminum layer in the aluminum-plastic film 4. When the above-mentioned problems are found, the defective product will be taken out after the packaging is completed for repair. The function of online insulation detection is convenient and practical, which can reduce the cost of using manual insulation tests on lithium batteries 3 one by one after packaging and reduce the probability of misjudgment, which is conducive to improving work efficiency.

As mentioned above, during specific implementation, both the first conductive probe 61 and the second conductive probe 62 can move on the first insulating support 11, so that, during specific implementation, the first conductive probe 61 and the second conductive probe 62 can be adjusted to The probe 61 faces the positive pole tab 31 below it and the second conductive probe 62 faces the negative pole tab 32 below it, so that when the aluminum plastic film 4 is packaged, the first conductive probe 61 can be connected to the The positive pole tab 31 is connected and the second conductive probe 62 can be in contact with the negative pole tab 32 .

As mentioned above, during specific implementation, the first insulating bracket 11 is provided with a horizontal guide groove 111, and the first needle holder 611, the second needle holder 621, and the third needle holder 621 are respectively connected to the horizontal guide groove 111 by screws. Needle base 631, the first conductive probe 61 is installed on the first needle base 611, the second conductive probe 62 is installed on the second needle base 621, and the third conductive probe 63 Installed on the third needle base 631, in this way, by adjusting the positions of the first needle base 611, the second needle base 621, and the third needle base 631, the first conductive probe 61 and the second conductive probe 61 can be adjusted correspondingly. The positions of the needle 62 and the third conductive probe 63 .

As mentioned above, in practice, the first conductive probe 61 is elastically connected to the first needle base 611 through the first spring 612 , and the second conductive probe 62 is elastically connected to the first needle base 611 through the second spring 622 . In this way, when the first insulating support 11 moves downward, the first conductive probe 61 moves downward and makes elastic contact with the positive electrode tab 31 and the second conductive probe 61. The probe 62 moves downward and makes elastic contact with the negative electrode tab 32 , so that it is beneficial to ensure that the contact is in place without crushing the tab.

As mentioned above, in practice, the first insulating bracket 11 at the notch of the horizontal guide groove 111 is provided with a scale 112 parallel to the horizontal guide groove 111, so that it is convenient to show the first conductive probe 61 , the scale positions of the second conductive probe 62 and the third conductive probe 63 .

As mentioned above, what this case protects is a lithium battery aluminum-plastic film packaging machine with an online insulation detection function, and all technical solutions with the same or similar structure as this case should be deemed to fall within the protection scope of this case.

Claims (5)

1. A lithium battery aluminum-plastic film encapsulation machine with on-line insulation detection function is characterized in that comprising an upper sealing base (1) and a lower sealing base (2), the upper sealing base ( 1) The first insulating bracket (11) is connected to the side direction and the upper head (12) for encapsulating the aluminum-plastic film (4) on the side of the lithium battery (3) is connected to the downward direction, and the lower head The base (2) is connected with a second insulating support (21) in the side direction and connected with the lower head (22) for encapsulating the aluminum-plastic film (4) on the side of the lithium battery (3) in the upward direction. A workbench (5) is provided between an insulating support (11) and a second insulating support (21), and the first insulating support (11) is provided with a positive electrode tab (31) for connecting with the lithium battery (3). The first conductive probe (61) for contact and the second conductive probe (62) for contacting the negative electrode tab (32) on the lithium battery (3) and for contacting the aluminum layer in the aluminum plastic film (4) The third conductive probe (63), the first insulation resistance tester (71) is electrically connected between the first conductive probe (61) and the second conductive probe (62), and the second A second insulation resistance tester (72) is electrically connected between the conductive probe (62) and the third conductive probe (63), and the second insulating support (21) is provided with a device for facilitating the third conductive probe. (63) Insulating cushion block (8) pierced into said aluminum-plastic film (4) to be in contact with the aluminum layer. 2. A lithium battery aluminum-plastic film packaging machine with on-line insulation detection function according to claim 1, characterized in that the first conductive probe (61) and the second conductive probe (62) can Move on the first insulating support (11). 3. A lithium battery aluminum-plastic film packaging machine with on-line insulation detection function according to claim 2, characterized in that said first insulating support (11) is provided with a horizontal guide groove (111), said The first needle base (611), the second needle base (621), and the third needle base (631) are respectively connected to the horizontal guide groove (111) by screws, and the first conductive probe (61) is installed on the on the first needle seat (611), the second conductive probe (62) is installed on the second needle seat (621), and the third conductive probe (63) is installed on the third needle On seat (631). 4. A lithium battery aluminum-plastic film packaging machine with online insulation detection function according to claim 3, characterized in that said first conductive probe (61) is elastically connected to said first spring (612) The second conductive probe (62) is elastically connected to the second needle seat (621) through a second spring (622). 5. A lithium battery aluminum-plastic film packaging machine with online insulation detection function according to claim 3, characterized in that the first insulating bracket (11) at the notch of the horizontal guide groove (111) is provided with There is a scale (112) arranged parallel to the horizontal guide groove (111).