Soft package battery press probe mechanism

Abstract

The utility model relates to the field of probes for soft package battery production, and discloses a soft package battery press probe mechanism which comprises a conductive probe assembly and a probe support, the conductive probe assembly comprises a plurality of probes, a plurality of springs and at least two positioning guide columns, the probes comprise a positive electrode current probe, a positive electrode voltage probe, a negative electrode current probe and a negative electrode voltage probe, and current and voltage information of the corresponding probes can be collected by selectively accessing different probes, so that the problem of low yield of the produced soft package batteries caused by non-fine measurement of probe contact parts in the production process of the soft package batteries is solved; the first mounting hole and the through groove are formed in the probe support, so that the positioning guide column and the probe support can be connected with the probe and the spring, and the probe on the press probe mechanism is stably used for production of the soft package battery.

Description

Technical Field

[0001] The utility model relates to the field of probes for producing soft-pack batteries, in particular to a probe mechanism for a soft-pack battery press. Background Art

[0002] Soft-pack batteries, a type of battery cell packaged with aluminum-plastic film, offer numerous advantages, including safety, light weight, low internal resistance, excellent cycle performance, and flexible design. During the production of soft-pack batteries, the press probe mechanism plays a crucial role. Common press probe mechanisms in existing technologies primarily measure current and voltage during the production process using current and voltage probes.

[0003] For example, a multi-needle high-current probe with the authorization announcement number CN218455745U includes several conductive probes and a probe mounting seat. The conductive probes include a voltage probe and a current probe. The probe mounting seat is provided with several mounting holes, in which the conductive probes can be embedded. The mounting holes are arranged in rows to form a square array. The conductive probes embedded in the mounting holes can be arranged in a square array, which can adapt to battery poles with square cross-sections. When the conductive probes are pressed into contact with the battery poles, the conductive probes and the battery poles have a good contact area, thereby avoiding a significant impact on the capacity separation and formation processes of the power battery. However, the probe is not precise enough in measuring the part where the needle directly acts on the production during manufacturing. In the automated production of soft-pack batteries, imprecise measurement can easily lead to a large number of defective products in the production of soft-pack batteries, resulting in the yield rate of a batch of soft-pack batteries being lower than the requirement, causing economic losses.

[0004] Therefore, it is necessary to study a press probe mechanism to address the above-mentioned problems. Utility Model Content

[0005] In order to solve the problem of low yield rate of soft-pack batteries caused by imprecise measurement during the production process of soft-pack batteries, one purpose of the present invention is to provide a probe mechanism for a soft-pack battery press. In order to solve the above problem, the present invention is implemented according to the following technical solutions:

[0006] The soft pack battery press mechanism described in the utility model is used to be connected to an external power source and can be installed on a soft pack battery press, comprising:

[0007] A conductive probe assembly, which can be electrically connected to the positive and negative tabs of the soft-pack battery, and includes a plurality of probes and at least two positioning guide posts. The probes include a positive current probe, a positive voltage probe, a negative current probe, and a negative voltage probe;

[0008] A probe bracket is used to install the probe and install the soft-pack battery press probe mechanism to the soft-pack battery press. The probe bracket is provided with multiple through slots, and each probe is passed through a through slot. The probe bracket is provided with multiple first mounting holes, and the first mounting holes are used to install the positioning guide column. The positioning guide column is connected to the probe to enable the probe to be fixed on the probe bracket.

[0009] In some preferred embodiments, the two ends of the probe protruding from the probe bracket are respectively a needle head and a tail, the needle head is used to contact the tab of the soft-pack battery to achieve electrical connection, and the tail is used to connect the current line and voltage line of the external power supply.

[0010] In some preferred embodiments, the needle head includes a contact portion and a connecting portion, the contact portion is capable of contacting a tab of the soft-pack battery, and the contact portion is provided with a rounded corner.

[0011] In some preferred embodiments, the connecting portion is provided with a first through hole for heat dissipation.

[0012] In some preferred embodiments, the tail portion is provided with a second through hole, and the second through hole can be connected to a current line and a voltage line of an external power supply.

[0013] In some preferred embodiments, the second through hole is provided at a position deviated from the center of the probe tail, and the probes in the conductive probe assembly can be arranged according to the same direction arrangement or staggered arrangement of the second through hole.

[0014] In some preferred embodiments, the first mounting hole is a countersunk hole or a through hole.

[0015] In some preferred embodiments, the probe bracket is provided with a mounting ear, and the mounting ear is provided with a second mounting hole for mounting the soft pack press probe mechanism on the soft pack battery press.

[0016] In some preferred embodiments, a centering guide portion for aligning with the probe is provided on a side of the probe holder close to the needle head, and the centering guide portion is provided with a spring slide rail.

[0017] In some preferred embodiments, the conductive probe assembly further includes a plurality of springs, a guide groove is provided in the middle of the probe, two opposite clips are provided at both ends of the guide groove, the spring is connected between the two clips, the guide groove is located in the through groove, and the positioning guide column is also connected to the spring to guide the spring.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model fixes the positioning guide column, the probe holder and the probe through the first mounting hole and the through groove of the probe holder, so as to stabilize the overall structure of the press probe mechanism. By dividing the probes into positive current probe, positive voltage probe, negative current probe and negative voltage probe, production personnel can select the connected probes according to their needs, and then collect the required current and voltage data of the positive current, positive voltage, negative current and negative voltage. Therefore, the problem of low yield of soft-pack batteries caused by imprecise measurement of the needle head directly acting on the production during the production process of soft-pack batteries can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a three-dimensional schematic diagram of the second through holes of the present invention arranged in the same direction;

[0022] Figure 2 This is an exploded schematic diagram of the second through holes of the present invention arranged in the same direction;

[0023] Figure 3 This is a three-dimensional schematic diagram of the staggered arrangement of the second through holes of the present invention;

[0024] Figure 4 It is a three-dimensional schematic diagram of the probe bracket of the utility model;

[0025] In the picture:

[0026] 11. Positive current probe; 12. Positive voltage probe; 13. Negative current probe; 14. Negative voltage probe;

[0027] 2. Probe bracket; 21. Through slot; 22. First mounting hole; 23. Second mounting hole; 24. Mounting ear;

[0028] 25. Centering guide; 251. Positioning slide rail;

[0029] 31. Guide groove; 32. Buckle; 33. Contact portion; 34. Connecting portion; 35. First through hole; 36. Second through hole;

[0030] 4. Spring; 5. Positioning guide pin. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0032] In the description of the present invention, it should be understood that the terms "above", "one side", "bottom", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0034] In order to solve the problem that imprecise measurement during the production process of soft-pack batteries may lead to low yield of the produced soft-pack batteries, the utility model application provides a soft-pack battery press probe mechanism, which allows production personnel to select connected probes according to needs, and then collect the required current and voltage data of positive electrode current, positive electrode voltage, negative electrode current and negative electrode voltage.

[0035] like Figure 1-Figure 4 As shown, the soft pack battery press probe mechanism provided by the utility model application is used to connect to an external power supply and can be installed on a soft pack battery press, including a conductive probe assembly and a probe bracket 2, wherein:

[0036] The conductive probe assembly can be electrically connected to the positive and negative tabs of the soft-pack battery, and includes a plurality of probes and at least two positioning guide posts 5. The probes include a positive current probe 11, a positive voltage probe 12, a negative current probe 13, and a negative voltage probe 14.

[0037] The probe bracket 2 is used to install the probe and install the soft-pack battery press probe mechanism to the soft-pack battery press. The probe bracket is provided with multiple through slots 21, and each probe is passed through a through slot 21. The probe bracket 2 is provided with multiple first mounting holes 22, and the first mounting hole 22 is used to install the positioning guide column 5. The positioning guide column 5 is connected to the probe to enable the probe to be fixed on the probe bracket 2.

[0038] The soft-pack battery press probe mechanism provided in the present application fixes the positioning guide column 5, the probe bracket 2 and the probe through the first mounting hole 22 and the through groove 21 of the probe bracket 2, so that the overall structure of the press probe mechanism can be stable. By dividing the probes into a positive current probe 11, a positive voltage probe 12, a negative current probe 13 and a negative voltage probe 14, the corresponding probes can measure the voltage and current of the contact position between the probe and the soft-pack battery, including the positive and negative poles. In actual production, the staff can select different probes to connect to the current line and voltage line of the external power supply as needed, and then can collect the current and voltage data of the positive current, positive voltage, negative current and negative voltage they need.

[0039] In some preferred embodiments, the two ends of the probe protruding from the probe bracket 2 are respectively a needle head and a tail. The needle head is used to contact the pole ear of the soft-pack battery to achieve electrical connection, and the tail is used to connect the current line and the voltage line of the external power supply. The needle head includes a contact portion 33 and a connecting portion 34. The contact portion 33 can contact the pole ear of the soft-pack battery. The contact portion 33 is provided with a chamfered corner. During the actual production of the soft-pack battery press, the contact portion 33 is pressed into contact with the pole ear of the soft-pack battery arranged on the carrier mechanism. Providing a chamfered corner on the contact portion 33 can prevent the pole ear from being pressed or bent or even damaged.

[0040] In some preferred embodiments, Figure 1-Figure 3 As shown, the connecting portion 34 is provided with a first through hole 35 for heat dissipation, and the connecting portion is close to the probe contact portion 33 used in the production of soft-pack batteries. In actual production, the first through hole 35 can assist in heat dissipation of the probe needle head, and can be used as a process hole during the installation stage of the probe mechanism of the soft-pack battery press of the present application, for example, as a process hole for alignment and positioning of components to ensure precise installation, or as a process hole for the installation of sensors to detect the position of components.

[0041] In some preferred embodiments, Figure 1-Figure 3 As shown, the tail of the probe is provided with a second through hole 36, which can be connected to the current line and voltage line of the external power supply, so that the corresponding probe becomes the positive and negative electrodes in contact with the soft-pack battery and participates in the production of the soft-pack battery. The second through hole 36 is provided at a position deviating from the center of the tail of the probe, which allows users to choose the arrangement method. Specifically, Figure 1 and Figure 3 As shown, the probes in the conductive probe assembly can be arranged according to the same direction arrangement and staggered arrangement of the second through holes 36. It is understandable that the probes are selected as follows. Figure 1 The same direction arrangement shown in the figure will make it easier for the staff to work when connecting the probe to the current line and voltage line of the external power supply, making it easier to connect and observe the wiring errors. Figure 3The staggered arrangement shown is helpful to avoid the same type of circuits from being connected and contacted. In actual production, the intervals between the probe mechanisms of each press machine will be as large as possible to ensure their safety, so the probes are generally arranged in a staggered arrangement.

[0042] In some preferred embodiments, the first mounting hole 22 is a countersunk hole or a through hole, such as Figure 1-Figure 3 As shown, the first mounting hole 22 is used to install the positioning guide column 5. The number of the positioning guide column 5 is determined according to the number of probes. When the first mounting hole 22 is a countersunk hole, the four probes located at the positive and negative poles are respectively installed on the probe bracket 2. When the first mounting hole 22 is a through hole, the two probes located at the same positive pole or negative pole can save steps during installation. In some embodiments of the present application, in order to facilitate installation, the first mounting hole 22 is set to be a through hole that passes through the probe bracket 2.

[0043] In some preferred embodiments, the probe bracket 2 is provided with a mounting ear 24, and the mounting ear 24 is provided with a second mounting hole 23 for mounting the soft-pack press probe mechanism on the soft-pack battery press. The soft-pack battery press probe mechanism of the present application can be installed on the corresponding soft-pack battery press by cooperating with bolts, screws or other fasteners and the second mounting hole 23.

[0044] In some preferred embodiments, the probe holder 2 is provided with a centering guide portion 25 on one side close to the needle head for aligning with the probe. The centering guide portion 25 can align the probe to be installed on the probe holder 2 to avoid installation errors. Figure 1-Figure 4 It is shown that the current and voltage probes at the same positive or negative pole may need to be installed in pairs. The centering guide part 25 can be used as a fool-proof design to remind the staff. The centering guide part 25 is provided with a spring slide rail 251. Considering that the spring 4 needs to be connected with the probe's snap during installation, the probe as a whole needs to be installed on the probe bracket 2 together with the spring 4. The spring slide rail 251 is provided on the centering guide part 25 to avoid the spring from being misplaced during the installation process.

[0045] In some preferred embodiments, the conductive probe assembly also includes multiple springs 4, a guide groove 31 is provided in the middle of the probe, and two opposite clips 32 are provided at both ends of the guide groove 31. The spring 4 is connected between the two clips 32, and the guide groove 31 is located in the through groove 21. The positioning guide column 5 is also connected to the spring 4 to guide the spring 4. The positioning guide column 5 and the probe bracket 2 are connected to the probe and the spring 4 through the first mounting hole 22 and the through groove 21 of the probe bracket 2, so that the probe on the press probe mechanism can be stabilized. Furthermore, through the connection between the guide groove 31 of the probe and its clip 32 and the spring 4, the probe needle can have a certain buffer space when contacting different soft-pack battery tabs, so that the probe needle can adapt to contacting tabs of different positions and heights, and can prevent the tabs from being bent or folded within a certain range. Therefore, the soft-pack battery press probe mechanism of the present invention can adapt to the automated production of soft-pack batteries of multiple specifications.

[0046] The working principle of the probe mechanism of the soft pack battery press of the utility model is:

[0047] A soft-pack battery press probe mechanism includes a conductive probe assembly and a probe holder. The conductive probe assembly includes multiple probes, multiple springs and at least two positioning guide pillars. The probes include a positive current probe, a positive voltage probe, a negative current probe and a negative voltage probe. By selecting and connecting different probes, the current and voltage information of the corresponding probes can be collected, thereby solving the problem of low yield of soft-pack batteries produced due to imprecise measurement of the probe needle contact part during the soft-pack battery production process. By arranging a first mounting hole and a through groove on the probe holder, the positioning guide pillar, the probe holder, the probe and the spring can be connected, so that the probes on the press probe mechanism can be stably used for the production of soft-pack batteries.

[0048] Through the guide groove of the probe and the connection between its clip and spring, the probe needle can have a certain buffer space when contacting different soft-pack battery tabs, so that the probe needle can adapt to contacting tabs at different positions and heights, and can prevent the tabs from being bent or folded within a certain range. Therefore, the soft-pack battery press probe mechanism of the utility model can also adapt to the automated production of soft-pack batteries of multiple specifications.

[0049] For other structures of the probe mechanism of the soft-pack battery press in this embodiment, refer to the prior art.

[0050] The above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A probe mechanism for a soft pack battery press, which is used to connect to an external power supply and can be installed on a soft pack battery press, characterized in that: include; A conductive probe assembly, which can be electrically connected to the positive and negative tabs of the soft-pack battery, and includes a plurality of probes and at least two positioning guide posts. The probes include a positive current probe, a positive voltage probe, a negative current probe, and a negative voltage probe; A probe bracket is used to install the probe and install the soft-pack battery press probe mechanism to the soft-pack battery press. The probe bracket is provided with multiple through slots, and each probe is passed through a through slot. The probe bracket is provided with multiple first mounting holes, and the first mounting holes are used to install the positioning guide column. The positioning guide column is connected to the probe to enable the probe to be fixed on the probe bracket.

2. The soft pack battery press probe mechanism according to claim 1, characterized in that: The conductive probe assembly also includes multiple springs, a guide groove is provided in the middle of the probe, two opposite clips are provided at both ends of the guide groove, the spring is connected between the two clips, the guide groove is located in the through groove, and the positioning guide column is also connected to the spring to guide the spring.

3. The soft pack battery press probe mechanism according to claim 1, characterized in that: The two ends of the probe protruding from the probe bracket are respectively a needle head and a tail. The needle head is used to contact the tab of the soft-pack battery to achieve electrical connection, and the tail is used to connect the current line and voltage line of the external power supply.

4. The soft pack battery press probe mechanism according to claim 3, characterized in that: The needle head includes a contact portion and a connecting portion. The contact portion can contact the tab of the soft-pack battery, and the contact portion is provided with a rounded corner.

5. The soft pack battery press probe mechanism according to claim 4, characterized in that: The connecting portion is provided with a first through hole for heat dissipation.

6. The soft pack battery press probe mechanism according to claim 3, characterized in that: The tail portion is provided with a second through hole, and the second through hole can be connected to a current line and a voltage line of an external power supply.

7. The soft pack battery press probe mechanism according to claim 6, characterized in that: The second through hole is provided at a position deviated from the center of the probe tail, and the probes in the conductive probe assembly can be arranged according to the same direction arrangement or staggered arrangement of the second through hole.

8. The soft pack battery press probe mechanism according to claim 1, characterized in that: The first mounting hole is a countersunk hole or a through hole.

9. The soft pack battery press probe mechanism according to claim 1, characterized in that: The probe bracket is provided with a mounting ear, and the mounting ear is provided with a second mounting hole for mounting the soft-pack battery press probe mechanism on the soft-pack battery press.

10. The soft pack battery press probe mechanism according to claim 1, characterized in that: A centering guide portion for aligning with the probe is provided on one side of the probe bracket close to the needle head, and the centering guide portion is provided with a spring slide rail.

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