Battery needling mechanism and battery needling device

Abstract

The utility model discloses a battery needling mechanism and a battery needling device.The battery needling mechanism comprises a needling needle assembly, a first adjusting assembly and a second adjusting assembly, the first adjusting assembly comprises a first supporting plate, a first sliding plate and a first lead screw, the first sliding plate is in sliding connection with the first supporting plate, and the first lead screw is in threaded connection with the first sliding plate; the first adjusting assembly comprises a first supporting plate, a second sliding plate and a second lead screw, the first lead screw rotates to drive the first sliding plate to move relative to the first supporting plate in the second direction, the pricking needle assembly is arranged on the side, away from the first supporting plate, of the first sliding plate in a protruding mode, and the second adjusting assembly comprises a second supporting plate, a second sliding plate and a second lead screw; the first supporting plate is connected with the second sliding plate, the second lead screw is in threaded connection with the second sliding plate, and the second lead screw rotates to drive the second sliding plate to slide in the third direction. The alignment precision of the pricking pin assembly and the to-be-tested battery is improved, and the alignment speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing equipment, in particular to a battery puncture mechanism and a battery puncture device comprising the battery puncture mechanism. Background Art

[0002] When batteries are manufactured, a puncture test is performed on the batteries using a puncture device to test the safety of the batteries.

[0003] The puncture device includes a puncture needle assembly and a battery fixing assembly. The puncture needle assembly can move back and forth in a first horizontal direction. The battery fixing assembly is arranged on one side of the puncture needle assembly in the first horizontal direction. The puncture needle assembly moves in the first horizontal direction and can puncture the battery on the battery fixing assembly. The battery fixing assembly includes a fixing table, a hydraulic lifting member and a plurality of pads. The fixing table is used to fix the battery to be tested, and the battery can move along the second horizontal direction on the fixing table. The second horizontal direction is arranged at an angle with the first horizontal direction. The hydraulic lifting member is connected to the fixing table. The hydraulic lifting member is lifted and lowered in the vertical direction, which can drive the fixing table to lift and lower, and then adjust the height position of the battery fixed on the fixing table. During the test, the puncture needle assembly needs to be used to puncture different positions of the battery of the same model, so it is necessary to adjust the relative position of the battery and the puncture needle assembly in the second horizontal direction and the vertical direction to achieve the alignment of the puncture needle and the battery. The puncture device in the prior art directly controls the battery to move along the second horizontal direction on the fixed table by hand, and fine-tunes the height position of the battery in the vertical direction by changing the number of pads on the fixed table. Since the height of the pads is fixed, the puncture device in the prior art has poor adjustment accuracy in the second horizontal direction and the vertical direction, resulting in a large deviation in the alignment of the puncture needle assembly and the battery, which affects the battery puncture test, and the adjustment speed is slow, affecting the puncture efficiency. Utility Model Content

[0004] One purpose of the utility model is to provide a battery puncture mechanism, which is conducive to improving the alignment accuracy of the puncture needle assembly and the battery to be tested, and the alignment speed is fast.

[0005] Another object of the utility model is to provide a battery puncture device, which has good puncture test effect and high operation efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] On the one hand, a battery puncture mechanism is provided, which can be moved along a first direction. The battery puncture mechanism includes a puncture needle assembly, a first adjustment assembly and a second adjustment assembly. The first adjustment assembly includes a first support plate, a first sliding plate and a first screw rod. The first sliding plate is slidably connected to the first support plate, and the first screw rod is threadedly connected to the first sliding plate. The rotation of the first screw rod can drive the first sliding plate to move relative to the first support plate along the second direction. The puncture needle assembly is protrudingly arranged on the side of the first sliding plate away from the first support plate, and the puncture needle assembly is used to puncture the battery. The second adjustment assembly includes a second support plate, a second sliding plate and a second screw rod. The second sliding plate is slidably arranged on one side of the second support plate, the first support plate is connected to the second sliding plate, the second support plate is connected to the driving member, and the second screw rod is threadedly connected to the second sliding plate. The rotation of the second screw rod can drive the second sliding plate to slide along a third direction. The first direction, the second direction and the third direction are arranged at an angle.

[0008] As a preferred technical solution of the battery puncture mechanism, it also includes two first elastic protective members and two second elastic protective members, the first support plate is provided with first convex plates protruding toward the first sliding plate at both opposite ends in the second direction, the first sliding plate is located between the two first convex plates, the first sliding plate is provided with a first groove, the first groove runs through the opposite ends of the first sliding plate in the second direction, one end of the first screw rod passes through the first groove from one of the first convex plates and extends toward the other first convex plate, the first elastic protective member is provided between each of the first convex plates and the first sliding plate, and the two first elastic protective members are sleeved on the outer periphery of the first screw rod;

[0009] The second support plate is respectively provided with second convex plates protruding at the opposite ends of the third direction, the second sliding plate is slidably arranged between the two second convex plates, the second sliding plate is provided with a second groove, the second groove runs through the opposite ends of the second sliding plate in the third direction, one end of the second screw rod passes through the second groove from one of the second convex plates and extends toward the other second convex plate, the second elastic protective piece is arranged between each second convex plate and the second sliding plate, and the two second elastic protective pieces are sleeved on the outer periphery of the second screw rod.

[0010] As a preferred technical solution of the battery puncture mechanism, the opposite ends of the first elastic protective member are respectively connected to the first sliding plate and the first convex plate through first connecting screws;

[0011] The opposite ends of the second elastic protective member are respectively connected to the second sliding plate and the second convex plate through second connecting screws.

[0012] As a preferred technical solution of the battery puncture mechanism, the first elastic protective member is an accordion plate;

[0013] And / or, the second elastic protective member is an accordion plate.

[0014] As a preferred technical solution of the battery puncture mechanism, the first sliding plate includes a first plate and a second plate connected to one side of the first plate, the first plate is arranged between the first supporting plate and the second plate, the first groove is arranged on the first plate, a first slide groove is arranged on the side of the first supporting plate away from the second adjusting component, the length direction of the first slide groove extends along the second direction, the first plate is slidably arranged in the first slide groove, the groove bottom of the first slide groove is concavely arranged with a first guide groove matched with the first guide part, the first guide part is slidably arranged in the first guide groove, the first screw rod is threadedly connected to the first guide part, and the second plate is slidably arranged at the notch end of the first slide groove;

[0015] The second sliding plate includes a third plate and a fourth plate connected to one side of the third plate, the third plate is arranged between the second supporting plate and the fourth plate, the second groove is arranged in the third plate, the second guide portion is arranged in the second groove, a second slide groove is arranged on the side of the second supporting plate facing the first adjusting component, the length direction of the second slide groove extends along the third direction, the third plate is slidably arranged in the second slide groove, the groove bottom recess of the second slide groove is provided with a second guide groove matching with the second guide portion, the second guide portion is slidably arranged in the second guide groove, the second screw rod is threadedly connected to the second guide portion, and the fourth plate is slidably arranged at the notch end of the second slide groove.

[0016] As a preferred technical solution of the battery puncture mechanism, the first locking assembly further includes two first locking plates and at least one first locking screw, the two first locking plates are protrudingly arranged on a side of the first support plate away from the second adjustment assembly, the two first locking plates are spaced apart along the third direction, and the first slide groove is located between the two first locking plates, at least one of the first locking plates is provided with a first waist-shaped hole, the length of the first waist-shaped hole extends along the second direction, the second plate is provided with a first locking hole, each of the first locking screw bodies corresponds to a first waist-shaped hole and the first locking hole, and the first locking screw passes through the corresponding first waist-shaped hole and is tightened in the first locking hole;

[0017] And / or, it also includes a second locking assembly, the second locking assembly includes a second locking plate and at least one second locking screw, two second locking plates protrude from a side of the second support plate facing the first adjustment assembly, the two second locking plates are spaced apart along the second direction, and the second slide groove is located between the two second locking plates, at least one second locking plate is provided with a second waist-shaped hole, the length of the second waist-shaped hole extends along the second direction, the fourth plate is provided with a second locking hole, the second locking screw corresponds to the second waist-shaped hole and the second locking hole, the second locking rod is threadedly connected to the corresponding second locking hole, and the second locking rod passes through the corresponding second waist-shaped hole and the second locking hole in sequence to press against the third plate.

[0018] As a preferred technical solution of the battery puncture mechanism, the first slide groove is provided with first notches on both sides of the groove sidewalls in the third direction, a first limiting recess is formed between the sidewall of the first notch and the first support plate, and the first plate is provided with first limiting protrusions at both opposite ends in the third direction, the first limiting protrusions correspond to the first limiting recesses one by one, and the first limiting protrusions are movably arranged in the corresponding first limiting recesses;

[0019] And / or, the second sliding groove is provided with second notches on the groove side walls on both sides of the second direction, the side walls of the second notches and the second supporting plate are arranged to form the second limiting recess, and the third plate is provided with second limiting protrusions on two opposite sections in the second direction, the second limiting protrusions correspond to the second limiting recesses one by one, and the second limiting protrusions are movably arranged in the corresponding second limiting recesses.

[0020] As a preferred technical solution of the battery puncture mechanism, it also includes a connecting plate, and the first supporting plate is connected to the fourth plate through the connecting plate.

[0021] As a preferred technical solution of the battery puncture mechanism, it also includes a mounting member, and the second support plate is connected to the driving member through the mounting member.

[0022] As a preferred technical solution of the battery puncture mechanism, it also includes a protective cover, the first adjustment component and the second adjustment component are both arranged in the protective cover, the protective cover is provided with a pinhole, and the puncture needle assembly includes a puncture needle, one end of which passes through the pinhole and protrudes outside the protective cover.

[0023] As a preferred technical solution of the battery puncture mechanism, the puncture needle assembly also includes a fixing plate arranged inside the protective cover, the fixing plate is connected to the side of the first sliding plate away from the first support plate, one end of the puncture needle is connected to the fixing plate, a clamping piece is protruding from the side of the fixing plate away from the first support plate, one end of the protective cover is provided with a cover opening, and the end of the protective cover facing the cover opening is provided with a clamping hole, and the protective cover is clamped with the clamping piece through the clamping hole.

[0024] As a preferred technical solution of the battery puncture mechanism, the fixing plate is threadedly connected to the puncture needle via a fastening screw.

[0025] On the other hand, a battery puncture device is also provided, comprising a battery fixing tool, a driving member and the above-mentioned battery puncture mechanism, wherein the driving member is connected to the second adjustment component of the battery puncture mechanism, and the driving member can drive the battery puncture mechanism to move along a first direction, and the battery fixing tool is arranged on one side of the battery puncture mechanism in the first direction, and the battery fixing tool is used to fix the battery to be tested.

[0026] The beneficial effects of the utility model are as follows: the puncture needle assembly is protruded and arranged on the first sliding plate, and the first screw rod is arranged to be threadedly connected with the first sliding plate. By rotating the first screw rod, the first sliding plate can be driven to slide along the second direction, driving the puncture needle assembly to move along the second direction, thereby realizing fine adjustment of the puncture needle assembly in the second direction; the second sliding plate is connected to the second support plate, and the second screw rod is arranged to be threadedly connected with the second sliding plate. By rotating the second screw rod, the second sliding plate can be driven to move along the third direction, driving the puncture needle assembly to move along the third direction, thereby realizing fine adjustment of the puncture needle assembly in the third direction. In the battery puncture mechanism of this structure, the position of the puncture needle assembly in the second direction and the third direction can be correspondingly fine-tuned by rotating different screw rods through the mutual cooperation between the first screw rod and the first sliding plate and the second screw rod and the second sliding plate, which can effectively improve the adjustment accuracy of the puncture needle assembly, thereby improving the alignment accuracy of the puncture needle assembly and the battery to be tested, and also facilitates the adjustment of the puncture needle assembly, which is conducive to improving the alignment speed of the puncture needle assembly and the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described in detail below based on the drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the battery puncture mechanism described in the embodiment at one angle.

[0029] Figure 2 It is a three-dimensional structural schematic diagram of the battery puncture mechanism described in the embodiment from another angle (the protective cover is removed in the figure).

[0030] Figure 3 It is a cross-sectional view of the battery puncture mechanism described in the embodiment (the protective cover is removed in the figure).

[0031] Figure 4 It is an exploded view of the battery puncture mechanism described in the embodiment.

[0032] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0033] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0034] Figure 7 It is a stereoscopic view of the first adjustment assembly, the connecting plate and the first locking assembly of the embodiment.

[0035] Figure 8 A three-dimensional diagram of a cross-sectional view of the first adjustment assembly, the connecting plate and the first locking assembly of the embodiment (the first plate is removed in the diagram).

[0036] Fig. 9 It is a stereoscopic view of the second adjustment assembly, the mounting member and the second locking assembly of the embodiment.

[0037] Fig.10 It is a three-dimensional view of the first sliding plate of the embodiment.

[0038] Fig.11 It is a three-dimensional diagram of the protective cover described in the embodiment.

[0039] In the figure:

[0040] 1. First adjustment assembly; 11. First support plate; 111. First guide groove; 112. First slide groove; 12. First sliding plate; 121. First plate; 1211. First groove; 1212. First stop convex portion; 122. Second plate; 1221. First guide portion; 13. First screw rod; 14. First elastic protective member; 15. First convex plate; 16. First stop concave portion; 2. Second adjustment assembly; 21. Second support plate; 211. Second guide groove; 22. Second sliding plate; 221. Third plate; 2211. Second groove; 2212. Second stop convex portion; 222. Fourth plate; 23. Second screw rod; 24. First Two elastic protective parts; 25, second convex plate; 26, second limiting recess; 3, needle assembly; 31, fixing plate; 32, needle; 321, connector; 322, needle body; 33, fastening screw; 4, mounting part; 5, protective cover; 51, snap-in hole; 511, first snap-in hole; 512, second snap-in hole; 52, needle hole; 53, avoidance; 6, first locking assembly; 61, first locking plate; 611, first waist-shaped hole; 62, first locking screw; 7, second locking assembly; 71, second locking plate; 711, second waist-shaped hole; 72, second locking screw; 8, snap-in piece; 9, connecting plate; 10, fifth connecting screw. DETAILED DESCRIPTION

[0041] 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 part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0042] In the description of the present invention, unless otherwise clearly specified 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 an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] The utility model provides a battery puncture device, comprising a battery puncture mechanism, a driving member and a battery fixing tool, wherein the battery fixing tool is arranged on one side of the battery puncture mechanism in a first direction, the battery fixing tool is used to fix the battery to be tested, the driving member is connected to the battery puncture mechanism, and the driving member can drive the battery puncture mechanism to move back and forth along the first direction, so that the battery puncture mechanism can selectively fix the battery on the battery fixing tool. The first direction is the X direction in the figure.

[0045] Among them, Figures 1 to 4 The battery puncture mechanism includes a puncture needle assembly 3, a first adjustment assembly 1 and a second adjustment assembly 2. The first adjustment assembly 1 includes a first support plate 11, a first sliding plate 12 and a first screw rod 13, the first sliding plate 12 is slidably connected to the first support plate 11, the first screw rod 13 is threadedly connected to the first sliding plate 12, the first screw rod 13 can drive the first sliding plate 12 to move relative to the first support plate 11 along the second direction when it rotates, the puncture needle assembly 3 is protrudingly arranged on the side of the first sliding plate 12 away from the first support plate 11, and the puncture needle assembly 3 is used to puncture the battery. The second adjustment assembly 2 includes a second support plate 21, a second sliding plate 22 and a second screw rod 23, the second sliding plate 22 is slidably arranged on one side of the second support plate 21, the first support plate 11 is connected to the second sliding plate 22, the second support plate 21 is fixed to the driving member, the second screw rod 23 is threadedly connected to the second sliding plate 22, the second screw rod 23 can drive the second sliding plate 22 to slide along the third direction when it rotates, and the first direction, the second direction and the third direction are arranged at an angle. In this embodiment, the first direction, the second direction and the third direction are perpendicular to each other, and the third direction is a vertical direction, and the first direction and the second direction are both horizontal directions. The second direction is the Z direction in the figure, and the third direction is the Y direction in the figure.

[0046] During use, the position of the battery fixing fixture remains unchanged. After the battery to be tested is fixed in the battery fixing work, the battery puncture mechanism is driven by the driving member to move along the first direction as a whole, so that the puncture needle assembly 3 of the battery puncture mechanism punctures the battery on the battery fixing fixture, and then the battery puncture test is carried out.

[0047] The pricking needle assembly 3 is protrudedly arranged on the first sliding plate 12 and a first screw rod 13 is threadedly connected to the first sliding plate 12. By rotating the first screw rod 13, the first sliding plate 12 can be driven to slide along the second direction, driving the pricking needle assembly 3 to move along the second direction, thereby achieving fine-tuning of the pricking needle assembly 3 in the second direction; the second sliding plate 22 is connected to the second supporting plate 21 and a second screw rod 23 is threadedly connected to the second sliding plate 22. By rotating the second screw rod 23, the second sliding plate 22 can be driven to move along the third direction, driving the pricking needle assembly 3 to move along the third direction, thereby achieving fine-tuning of the pricking needle assembly 3 in the third direction. The battery puncture mechanism of this structure cooperates with the first screw rod 13 and the first sliding plate 12 as well as the second screw rod 23 and the second sliding plate 22. By rotating different screw rods, the position of the puncture needle assembly 3 in the second direction and the third direction can be correspondingly fine-tuned. This can effectively improve the adjustment accuracy of the puncture needle assembly 3 (the alignment error of the battery puncture needle assembly and the battery can be reduced to 0.02mm), thereby improving the alignment accuracy of the puncture needle assembly 3 and the battery to be tested, and also facilitating the adjustment of the puncture needle assembly 3, which is beneficial to improving the alignment speed of the puncture needle assembly 3 and the battery.

[0048] As a preferred embodiment, refer to Figures 2 to 4 , Figure 7 and Fig. 9The battery puncture mechanism also includes two first elastic protective members 14 and two second elastic protective members 24. The first elastic protective member 14 can be elastically deformed in the second direction, and the second elastic protective member 24 can be elastically deformed in the third direction. The first support plate 11 is provided with first convex plates 15 protruding from opposite ends of the second direction, and the first sliding plate 12 is slidably arranged between the two first convex plates 15. The first sliding plate 12 is provided with a first groove 1211, and the first groove 1211 runs through the opposite ends of the first sliding plate 12 in the second direction. One end of the first screw rod 13 extends from one of the first convex plates 15 through the first groove 1211 toward the other first convex plate 15. The first elastic protective member 14 is arranged between each of the first convex plates 15 and the first sliding plate 12, and the two first elastic protective members 14 are sleeved on the outer periphery of the first screw rod 13. In this example, the two first convex plates 15 are along the vertical direction (i.e., the second direction), and the first convex plate 15 at the top is provided with a first through hole for the first screw rod 13 to pass through. The second support plate 21 is provided with second convex plates 25 protruding from opposite ends in the third direction, the second sliding plate 22 is slidably disposed between the two second convex plates 25, the second sliding plate 22 is provided with second grooves 2211, the second grooves 2211 penetrate the opposite ends of the second sliding plate 22 in the third direction, one end of the second screw rod 23 passes through the second groove 2211 from one of the second convex plates 25 and extends toward the other second convex plate 25, the second elastic protective member 24 is disposed between each of the second convex plates 25 and the second sliding plate 22, and the two second elastic protective members 24 are sleeved on the outer circumference of the second screw rod 23. Specifically, one of the second convex plates 25 is provided with a second through hole for the second screw rod 23 to pass through.

[0049] It is understandable that dust will be released when the battery is punctured, so there is usually a lot of dust in the working environment of the battery puncture mechanism. An elastic protective member is arranged between the convex plate and the sliding plate. The elastic protective member can cover the screw rod and the gap between the screw rod and the sliding plate to prevent the screw rod from being exposed and causing dust to contact the screw rod, and to prevent external dust from entering the gap between the screw rod and the sliding plate, thereby reducing the possibility of jamming between the screw rod and the sliding plate and ensuring the durability of the screw rod and the sliding plate.

[0050] In order to facilitate the assembly and disassembly of the elastic protective member, optionally, the opposite ends of the first elastic protective member 14 are detachably connected to the first sliding plate 12 and the first convex plate 15 respectively through first connecting screws. The opposite ends of the second elastic protective member 24 are detachably connected to the second sliding plate 22 and the second convex plate 25 respectively through second connecting screws. Of course, in other examples, the first elastic protective member 14 can also be fixedly connected to the first sliding plate 12 and the first convex plate 15, and the second elastic protective member 24 can also be fixedly connected to the second sliding plate 22 and the second convex plate 25.

[0051] In this example, the first elastic protection member 14 and the second elastic protection member 24 are both accordion plates. The accordion plates have certain folding and unfolding capabilities. When the sliding plate slides, the accordion plates can be driven to fold or unfold to well adapt to the distance between the convex plate and the sliding plate.

[0052] Preferably, the accordion board is a fireproof accordion board, for example, a rubber accordion board.

[0053] Specifically, refer to Figure 3 , Figure 5 , Figure 8 and Fig.10The first sliding plate 12 includes a first plate 121 and a second plate 122 connected to one side of the first plate 121, the first plate 121 is arranged between the first support plate 11 and the second plate 122, the first groove 1211 is arranged on the first plate 121, and the first groove 1211 is provided with a first guide portion 1221, the first support plate 11 is provided with a first slide groove 112 on the side away from the second adjustment assembly 2, the length direction of the first slide groove 112 extends along the second direction, the first plate 121 is slidably arranged in the first slide groove 112, the groove bottom of the first slide groove 112 is recessed with a first guide groove 111 matched with the first guide portion 1221, the first guide portion 1221 is slidably arranged in the first guide groove 111, the first screw rod 13 is threadedly connected with the first guide portion 1221, and the second plate 122 is slidably arranged at the notch end of the first slide groove 112. Specifically, the first plate 121 and the second plate 122 are connected by a third connecting screw. Since the first plate and the second plate are connected together, the first guide portion 1221 is provided with a first threaded hole, and the first screw rod 13 is threadedly matched with the first threaded hole, so that the rotation of the first screw rod 13 can make the first plate 121 slide relative to the first support plate 11 along the second direction. When the battery puncture mechanism punctures the battery, the battery will exert a large stress on the battery puncture mechanism (the direction of the stress is along the first direction, about 200KN), and the second plate 122 is slidably set at the notch end of the first slide groove 112, and the notch end of the first slide groove 112 is used to support the second plate 122, so that the stress can be borne by the first support plate 11 and the second plate 122, and the first plate 121 can be prevented from being crushed.

[0054] Reference Figure 3 , Figure 5 and Fig. 9The second sliding plate 22 includes a third plate 221 and a fourth plate 222 connected to one side of the third plate 221, the third plate 221 is arranged between the second support plate 21 and the fourth plate 222, the second groove 2211 is arranged in the third plate 221, the second groove 2211 is provided with a second guide portion, the second support plate 21 is provided with a second slide groove on the side facing the first adjustment component 1, the length direction of the second slide groove extends along the third direction, the third plate 221 is slidably arranged in the second slide groove, the groove bottom of the second slide groove is recessed with a second guide groove 211 matched with the second guide portion, the second guide portion is slidably arranged in the second guide groove 211, the second screw rod 23 is threadedly connected with the second guide portion, and the fourth plate 222 is slidably arranged at the notch end of the second slide groove. The second guide portion is provided with a second threaded hole, and the second screw rod 23 is threadedly matched with the second threaded hole, so that the rotation of the second screw rod 23 can make the third plate 221 slide relative to the second support plate 21 along the third direction. The fourth plate 222 is slidably arranged at the notch end of the second slide groove, so that the stress can be borne by the second support plate 21 and the fourth plate 222 to prevent the third plate 221 from being crushed.

[0055] It should be noted that the bottom of the first sliding groove 112 refers to the side of the first sliding groove 112 facing the second plate 122 and the side of the second sliding groove facing the fourth plate 222 .

[0056] Among them, refer to Figures 3 to 9 The battery puncture mechanism also includes a first locking assembly 6, which includes two first locking plates 61 and at least one first locking screw 62. The two first locking plates 61 are protrudingly arranged on a side of the first support plate 11 away from the second adjustment assembly 2. The two first locking plates 61 are spaced apart along the third direction, and the first slide groove 112 is located between the two first locking plates 61. At least one of the first locking plates 61 is provided with a first waist-shaped hole 711611, and the length of the first waist-shaped hole 711611 extends along the second direction. The second plate 122 is provided with a first locking hole, which is a threaded hole. Each of the first locking screws 62 has a corresponding first waist-shaped hole 711611 corresponding to the first locking hole. The first locking screw 62 passes through the corresponding first waist-shaped hole 711611 and is tightened in the first locking hole. Through this design, the locking of the second sliding plate 22 can be achieved. In this example, the first locking assembly 6 is provided with two first locking screws 62.

[0057] Specifically, the battery puncture mechanism also includes a second locking assembly 7, which includes a second locking plate 7171 and at least one second locking screw 72. Two second locking plates 7171 are protrudingly arranged on a side of the second support plate 21 facing the first adjustment assembly 1. The two second locking plates 7171 are spaced apart along the second direction, and the second slide groove is located between the two second locking plates 7171. At least one second locking plate 7171 is provided with a second waist-shaped hole 711, and the length of the second waist-shaped hole 711 extends along the second direction. The fourth plate 222 is provided with a second locking hole. Each second locking screw 72 corresponds to the second waist-shaped hole 711 and the second locking hole. The second locking rod passes through the corresponding second waist-shaped hole 711 and is tightened in the second locking hole. Through this design, the locking of the second sliding plate 22 can be achieved. In this example, the second locking assembly 7 includes a second locking screw 72.

[0058] Optionally, refer to Figure 8 and Fig.10 , the two first abutment blocks are each provided with a first notch on one side facing the first plate 121, a first limiting recess 16 is formed between the side wall of the first notch and the first support plate 11, and the first plate 121 is each provided with a first limiting protrusion 1212 at both opposite ends in the third direction, the first limiting protrusion 1212 corresponds to the first limiting recess 16 one by one, and the first limiting protrusion 1212 is movably arranged in the corresponding first limiting recess 16.

[0059] Reference Figure 5 The second sliding groove is provided with second notches on the side walls on both sides of the second direction, and the side walls of the second notches and the second supporting plate 21 are arranged to form the second limiting recess 26. The third plate 221 is provided with second limiting protrusions 2212 at two opposite sections in the second direction, and the second limiting protrusions 2212 correspond to the second limiting recesses 26 one by one, and the second limiting protrusions 2212 are movably arranged in the corresponding second limiting recesses 26.

[0060] Through the cooperation between the limiting groove and the limiting protrusion, the sliding plate can be restricted on the corresponding supporting plate to prevent the sliding plate from falling off the supporting plate.

[0061] In this embodiment, refer to Figure 3 , Figure 4 , Figure 6 and Figure 7 The battery puncture mechanism also includes a connecting plate 9, and the first support plate 11 is connected to the fourth plate 222 through the connecting plate 9. This design facilitates the first adjustment component 1 and the second adjustment component 2 to be connected as a whole.

[0062] Specifically, the battery puncture mechanism further includes a mounting member 4, and the second support plate 21 is connected to the driving member via the mounting member 4, so that the battery puncture mechanism is easily connected to the driving member.

[0063] It is understandable that when the puncture needle assembly 3 punctures the battery, the battery will explode, and the battery explosion will have a huge impact on the battery puncture mechanism, and the high temperature and fragments of the battery explosion will damage the battery puncture mechanism. Based on this, refer to Figure 1 and Fig.11 The battery puncture mechanism also includes a protective cover 5, the first adjustment component 1 and the second adjustment component 2 are both arranged in the protective cover 5, the protective cover 5 is provided with a pinhole 52, the puncture needle component 3 includes a puncture needle 32, one end of the puncture needle 32 passes through the pinhole 52 and protrudes outside the protective cover 5. The first adjustment component 1 and the second adjustment component 2 are protected by the protective cover 5. On the one hand, the impact force generated by the battery explosion can be buffered; on the other hand, the protective cover 5 can prevent high temperature and debris from damaging the internal components of the battery puncture mechanism.

[0064] In this example, the protective cover 5 is a stainless steel protective cover 5 , which has the characteristics of high structural strength and can provide good protection for the battery puncture mechanism.

[0065] Of course, in other examples, the protective cover 5 may also be an aluminum alloy protective cover 5 or a plastic protective cover 5 , and no specific limitation is made to the material of the protective cover 5 .

[0066] Optionally, refer to Figures 1 to 4 The battery puncture mechanism also includes a fixed plate 31 disposed inside the protective cover 5, and the fixed plate 31 is connected to the side of the first sliding plate 12 away from the first support plate 11 through a fifth connecting screw 10. In this example, the fixed plate 31 is connected to the second plate 122 through a fixing screw. One end of the puncture needle 32 is connected to the fixed plate 31, and a clamping member 8 is protrudingly provided on the side of the fixed plate 31 away from the first support plate 11. One end of the protective cover 5 is provided with a cover opening, and the end of the protective cover 5 facing the cover opening is provided with a clamping hole 51, and the protective cover 5 is clamped with the clamping member 8 through the clamping hole 51. The clamping member 8 is provided on the fixed plate 31, and the protective member is clamped on the fixed plate 31, and the fixed plate 31 is used to bear the weight of the protective cover 5. Since the first adjustment component 1 and the second adjustment component 2 are both arranged in the protective cover 5, the protective cover 5 needs to be removed before the first screw rod 13 and the second screw rod 23 can be manually driven to rotate. The protective cover 5 is arranged to be connected to the clamping member 8 through the clamping hole 51, so that the protective cover 5 can be quickly disassembled and assembled.

[0067] Preferably, the fixing plate 31 fastening screw is threadedly connected to the puncture needle 32. Specifically, the puncture needle 32 includes a connector 321 and a puncture needle body 322 with one end plugged into the connector 321. The puncture needle body 322 is used to contact the object to be tested. The fastening screw 33 is threadedly connected to the connector 321 through the fastening screw 33, so that the puncture needle 32 and the fixing plate 31 are detachably connected. In this way, different types of puncture needles 32 can be replaced as needed to meet test needs.

[0068] In this example, the first clamping member 8 is a clamping screw, one end of which is threadedly screwed onto the fixing plate 31 , and the protective cover 5 is clamped onto the fixing screw between the fixing plate 31 and the nut of the clamping screw.

[0069] Furthermore, the snap-in hole 51 includes a first snap-in hole 511 and a second snap-in hole 512 connected to the first snap-in hole 511, the first snap-in hole 511 is arranged above the second snap-in hole 512, the size of the second snap-in hole 512 is larger than the size of the nut of the snap-in screw, and the size of the first snap-in hole 511 is smaller than the size of the nut of the snap-in screw, so that when the protective cover 5 is sleeved on the outer periphery of the first adjustment component 1 and the second adjustment component 2, the protective cover 5 is manually driven to allow the nut of the snap-in screw to enter through the second snap-in hole 512, and then the protective cover 5 is released. The protective cover 5 automatically descends under the influence of gravity, so that the snap-in screw is automatically snapped into the first snap-in hole 511, so that the protective cover 5 is not easy to fall off from the fixing plate 31 while being disassembled and assembled.

[0070] Reference Fig.11 A side of the protective cover 5 is provided with an escape opening 53, and the escape opening 53 is used to escape the puncture needle body 322. When removing the protective cover 5, the puncture needle body 322 can be first moved from the needle hole 52 to the inside of the protective cover 5, and then the puncture needle body 322 can be moved out of the protective cover 5 from the escape opening 53; when installing the protective cover 5, the needle body 322 can first enter the inside of the protective cover 5 from the escape opening 53, and then pass through the needle hole 52 to protrude outside the protective cover 5. Therefore, the needle body 322 is avoided through the escape opening 53, which is conducive to saving space when disassembling and installing the protective cover 5, thereby making the structure of the battery puncture device more compact.

[0071] In the battery puncture device, the fine adjustment of the puncture needle assembly 3 in the second direction and the third direction is achieved through the cooperation of the screw rod and the sliding plate, which is beneficial to ensure the adjustment accuracy of the puncture needle 32, thereby improving the alignment accuracy between the battery puncture mechanism and the battery, and the battery puncture device can quickly adjust the movement of the puncture needle, which is beneficial to improving the operational efficiency of the battery puncture test.

[0072] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0073] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0074] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0075] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A battery puncture mechanism, the battery puncture mechanism can move along a first direction, characterized in that ,The battery puncture mechanism includes a puncture needle assembly, a first adjustment assembly and a second adjustment assembly, the first adjustment assembly includes a first support plate, a first sliding plate and a first screw rod, the first sliding plate is slidably connected to the first support plate, the first screw rod is threadedly connected to the first sliding plate, and the rotation of the first screw rod can drive the first sliding plate to move relative to the first support plate along the second direction, the puncture needle assembly is protrudingly arranged on the side of the first sliding plate away from the first support plate, the puncture needle assembly is used to puncture the battery, the second adjustment assembly includes a second support plate, a second sliding plate and a second screw rod, the second sliding plate is slidably arranged on one side of the second support plate, the first support plate is connected to the second sliding plate, the second screw rod is threadedly connected to the second sliding plate, and the rotation of the second screw rod can drive the second sliding plate to slide along the third direction, and the first direction, the second direction and the third direction are arranged at an angle.

2. The battery puncture mechanism according to claim 1, characterized in that: It also includes two first elastic protective members and two second elastic protective members, the first support plate is provided with first convex plates at opposite ends in the second direction, both of which are protruding toward the first sliding plate, the first sliding plate is located between the two first convex plates, the first sliding plate is provided with a first groove, the first groove runs through the opposite ends of the first sliding plate in the second direction, one end of the first screw rod passes through the first groove from one of the first convex plates and extends toward the other first convex plate, the first elastic protective member is provided between each of the first convex plates and the first sliding plate, and the two first elastic protective members are sleeved on the outer periphery of the first screw rod; The second support plate is respectively provided with second convex plates protruding at the opposite ends of the third direction, the second sliding plate is slidably arranged between the two second convex plates, the second sliding plate is provided with a second groove, the second groove runs through the opposite ends of the second sliding plate in the third direction, one end of the second screw rod passes through the second groove from one of the second convex plates and extends toward the other second convex plate, the second elastic protective piece is arranged between each second convex plate and the second sliding plate, and the two second elastic protective pieces are sleeved on the outer periphery of the second screw rod.

3. The battery puncture mechanism according to claim 2, characterized in that: The opposite ends of the first elastic protective member are respectively connected to the first sliding plate and the first convex plate through first connecting screws; The opposite ends of the second elastic protective member are respectively connected to the second sliding plate and the second convex plate through second connecting screws.

4. The battery puncture mechanism according to claim 2, characterized in that: The first elastic protective member is an accordion plate; And / or, the second elastic protective member is an accordion plate.

5. The battery puncture mechanism according to claim 2, characterized in that: The first sliding plate includes a first plate and a second plate connected to one side of the first plate, the first plate is arranged between the first supporting plate and the second plate, the first groove is arranged on the first plate, a first guide portion is arranged in the first groove, a first slide groove is arranged on the side of the first supporting plate away from the second adjusting assembly, a length direction of the first slide groove extends along the second direction, the first plate is slidably arranged in the first slide groove, a first guide groove matched with the first guide portion is arranged in a groove bottom depression of the first slide groove, the first guide portion is slidably arranged in the first guide groove, the first screw rod is threadedly connected to the first guide portion, and the second plate is slidably arranged at the notch end of the first slide groove; The second sliding plate includes a third plate and a fourth plate connected to one side of the third plate, the third plate is arranged between the second supporting plate and the fourth plate, the second groove is arranged on the third plate, a second guide portion is arranged in the second groove, a second slide groove is arranged on the side of the second supporting plate facing the first adjusting component, a length direction of the second slide groove extends along the third direction, the third plate is slidably arranged in the second slide groove, a second guide groove matching the second guide portion is recessed at the bottom of the second slide groove, the second guide portion is slidably arranged in the second guide groove, the second screw rod is threadedly connected to the second guide portion, and the fourth plate is slidably arranged at the notch end of the second slide groove.

6. The battery puncture mechanism according to claim 5, characterized in that: The invention also includes a first locking assembly, wherein the first locking assembly includes two first locking plates and at least one first locking screw, the two first locking plates are protrudingly arranged on a side of the first supporting plate away from the second adjusting assembly, the two first locking plates are spaced apart along the third direction, and the first slide groove is located between the two first locking plates, at least one of the first locking plates is provided with a first waist-shaped hole, the length of the first waist-shaped hole extends along the second direction, the second plate is provided with a first locking hole, each of the first locking screw bodies corresponds to a first waist-shaped hole and the first locking hole, and the first locking screw passes through the corresponding first waist-shaped hole and is tightened in the first locking hole; And / or, it also includes a second locking assembly, the second locking assembly includes a second locking plate and at least one second locking screw, two second locking plates are protrudingly arranged on a side of the second support plate facing the first adjustment assembly, the two second locking plates are spaced apart along the second direction, and the second slide groove is located between the two second locking plates, at least one second locking plate is provided with a second waist-shaped hole, the length of the second waist-shaped hole extends along the second direction, the fourth plate is provided with a second locking hole, the second locking screw corresponds to the second waist-shaped hole and the second locking hole, the second locking screw is threadedly connected to the corresponding second locking hole, and the second locking screw passes through the corresponding second waist-shaped hole and the second locking hole in sequence to press against the third plate.

7. The battery puncture mechanism according to claim 5, characterized in that: The first slide groove is provided with first notches on the groove side walls on both sides of the third direction, a first limiting recess is formed between the side wall of the first notch and the first support plate, and the first plate is provided with first limiting protrusions on opposite ends of the third direction, the first limiting protrusions correspond to the first limiting recesses one by one, and the first limiting protrusions are movably arranged in the corresponding first limiting recesses; And / or, the second sliding groove is provided with second notches on the groove side walls on both sides of the second direction, the side walls of the second notches and the second supporting plate are arranged to form a second limiting recess, and the third plate is provided with second limiting protrusions on two opposite sections in the second direction, the second limiting protrusions correspond one-to-one to the second limiting recess, and the second limiting protrusions are movably arranged in the corresponding second limiting recesses.

8. The battery puncture mechanism according to claim 5, characterized in that: It also includes a connecting plate, and the first supporting plate is connected to the fourth plate through the connecting plate.

9. The battery puncture mechanism according to any one of claims 1 to 8, characterized in that: It also includes a mounting member, and the second support plate is connected to the driving member of the battery puncture device through the mounting member.

10. The battery puncture mechanism according to any one of claims 1 to 8, characterized in that: It also includes a protective cover, the first adjustment component and the second adjustment component are both arranged in the protective cover, the protective cover is provided with a needle hole, and the puncture needle assembly includes a puncture needle, one end of which passes through the needle hole and protrudes outside the protective cover.

11. The battery puncture mechanism according to claim 10, characterized in that: The puncture needle assembly also includes a fixing plate arranged inside the protective cover, the fixing plate is connected to the side of the first sliding plate away from the first supporting plate, one end of the puncture needle is connected to the fixing plate, a clamping piece is protruding from the side of the fixing plate away from the first supporting plate, one end of the protective cover is provided with a cover opening, and the end of the protective cover facing the cover opening is provided with a clamping hole, and the protective cover is clamped with the clamping piece through the clamping hole.

12. The battery puncture mechanism according to claim 11, characterized in that: The fixing plate is threadably connected to the puncture needle via a fastening screw.

13. A battery puncture device, characterized in that: It comprises a battery fixing tool, a driving member and the battery puncture mechanism according to any one of claims 1 to 12, wherein the driving member is connected to the second adjustment component of the battery puncture mechanism, the driving member can drive the battery puncture mechanism to move along a first direction, the battery fixing tool is arranged on one side of the battery puncture mechanism in the first direction, and the battery fixing tool is used to fix the battery to be tested.

Images