End socket for workpiece packaging, end socket assembly and packaging device

Abstract

The utility model discloses a sealing head, a sealing head assembly and a packaging device for packaging a workpiece. The sealing head comprises a first part, a second part and a heating part, wherein the first component and the second component are oppositely arranged, and a concave-convex structure is formed on the first side surface, opposite to the first component, of the second component; a heating protruding part extending in the first direction is formed on the second side surface, away from the first part, of the second part, and a heating interface is formed on the upper side of the heating protruding part. The heating part is arranged in the second part, extends in the first direction and can heat the heating protruding part. According to the embodiment of the invention, the heating component is arranged in the internal channel of the second component, so that the sealing head is uniformly heated, and inconsistent hot melting thickness of the edge of a battery aluminum-plastic film is avoided; and by arranging the protrusions and the grooves, a user can conveniently disassemble and assemble the parts, and dislocation between the parts after long-time use is avoided.

Description

TECHNICAL FIELD

[0001] The present disclosure relates generally to the technical field of workpiece packaging. More particularly, the present disclosure relates to a lithium battery packaging head. BACKGROUND

[0002] The head is a component that seals the opening part of the battery during the packaging process of the lithium ion battery. Generally, the head is used in cooperation with the tab of the battery and the aluminum plastic film to tightly isolate the external environment, ensure that the internal materials of the lithium battery do not leak, and prevent moisture and air from entering the inside of the battery, while ensuring the pressure balance inside the battery, thereby ensuring the performance and safety of the battery.

[0003] In the prior art, a concave-convex structure is arranged on the contact surface of the head in contact with the packaging material, so that the molten glue of the aluminum plastic film slightly creeps due to the concave-convex structure, and fills the creased part during the creeping process, so that the two layers of aluminum plastic film are hot-melted and bonded together, thereby being able to strengthen the sealing performance.

[0004] However, the technical solution has some deficiencies. First, the way of heating the head in this technical solution is to locally heat several mutually distant points on the head. This heating method is slow to heat up, which affects production efficiency, and is prone to uneven temperature, resulting in inconsistent hot-melt thickness of the edge of the battery aluminum plastic film, thereby affecting the sealing performance of the battery. Second, since the head is fixedly connected with the fixed seat only by fasteners such as bolts, when the head is installed to the fixed seat, the user needs to manually and accurately align the threaded holes of the head and the fixed seat in order to ensure that the fasteners can connect the head and the fixed seat. However, since the contact surfaces of the head and the fixed seat are smooth planes, and there is no any protrusion or plug-in part as a device for assisting the alignment of the threaded holes of the head and the fixed seat, the user needs a relatively long time to successfully install in actual installation. In addition, in the long-term operation of the packaging equipment, since the head and the fixed seat are only linked by fasteners, misalignment between the two is prone to occur, thereby causing misalignment of the hot-melt of the battery aluminum plastic film during the packaging process, thereby affecting the sealing performance of the battery.

[0005] Therefore, it is urgent to provide a technical solution of a lithium battery packaging head, so as to uniformly heat the head, avoid inconsistent hot-melt thickness of the edge of the battery aluminum plastic film, thereby improving the sealing performance of the battery; at the same time, through technical improvement, the user can more easily align the threaded holes of the head and the fixed seat during the process of installing the head to the fixed seat, thereby enabling the user to more quickly and conveniently install; in addition, the problem of mutual misalignment between the head and the fixed seat after a long time of work can also be avoided. SUMMARY

[0006] To at least solve one or more of the above-mentioned technical problems, the present disclosure proposes a technical solution of a lithium battery packaging head in various aspects.

[0007] In a first aspect, the present disclosure provides a head for workpiece packaging, comprising: a first component, a second component, and a heating component; wherein the first component and the second component are oppositely arranged, wherein the second component forms a concave-convex structure on a first side surface oppositely arranged with the first component, so that a shape-fitting contact interface is formed between the first component and the second component; a heating protrusion extending along a first direction is formed on a second side surface of the second component opposite to the first component, and an upper side of the heating protrusion forms a heating interface; the heating component is arranged inside the second component, extends along the first direction, and can heat the heating protrusion.

[0008] In some embodiments, a first groove is formed on the first component along the first direction on a surface oppositely arranged with the second component; a first protrusion oppositely arranged with the first groove is formed on the first side surface of the second component; wherein the first groove and the first protrusion are adapted for plug-in fitting, and the contact interface formed between the first component and the second component is concave-convex, corresponding to the first groove and the first protrusion.

[0009] In some embodiments, a second groove and a third protrusion alternately arranged in a second direction are formed on the first component on a surface oppositely arranged with the second component, wherein the second direction intersects the first direction; a third groove and a second protrusion alternately arranged are formed on the first side surface of the second component, wherein the second protrusion is oppositely arranged with the second groove, and the third groove is oppositely arranged with the third protrusion.

[0010] In a second aspect, the present disclosure provides a head assembly for soft-pack battery packaging, wherein the head assembly comprises a first head and a second head, the first head and the second head are any one of the heads according to the embodiments of the present disclosure, the workpiece is located between the first head and the second head, the workpiece is a soft-pack battery, and the first head and the second head are symmetrically arranged along the soft-pack battery.

[0011] In a third aspect, the present disclosure provides a packaging device, wherein the packaging device is the head assembly according to any one of the embodiments of the present disclosure, the first head and the second head of the head assembly of the packaging device are located on the symmetrically opposite sides of the soft-pack battery, and the first head and the second head are in contact with the oppositely arranged two sides of the soft-pack battery during packaging.

[0012] By means of the head for workpiece packaging as provided above, the head can be uniformly heated by forming a channel inside the second component and setting the heating component in the channel, thereby avoiding the uneven thickness of the battery aluminum plastic film edge heat melting, improving the sealing of the battery packaged by the head.

[0013] Further, in some embodiments, by setting the protrusion and the groove on the opposite surfaces of the first component and the second component respectively, the first component and the second component can be connected by insertion, so that the user can more easily align the threaded holes of the first component and the second component, thereby enabling the user to more quickly and conveniently install and disassemble, and this can also avoid the problem of mutual misalignment between the first component and the second component after long-term work. BRIEF DESCRIPTION OF DRAWINGS

[0014] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which several embodiments of the present disclosure are shown by way of example, and wherein like reference numerals refer to like elements throughout. In the drawings:

[0015] Figure 1 A whole structure diagram of the head of the embodiment of the present disclosure is shown;

[0016] Figures 2a-2c A whole structure diagram of the first component and the second component of the embodiment of the present disclosure is shown;

[0017] Figures 3a-3c A vertical section structure diagram of the second component and the heating component of the embodiment of the present disclosure is shown;

[0018] Figure 4 A whole structure diagram of the head of the embodiment of the present disclosure is shown;

[0019] Figure 5 A vertical section structure diagram of the head assembly of the embodiment of the present disclosure is shown.

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1a - first head, 1b - second head;

[0022] 10 - first component, 11 - first groove, 12 - second groove, 13 - third protrusion, 131 - first threaded hole;

[0023] 20 - second component, 21 - first side, 211 - first protrusion, 212 - second protrusion, 213 - third groove, 2131 - second threaded hole, 22 - second side, 221 - heating protrusion part, 2211 - first heating protrusion part, 2212 - second heating protrusion part, 23 - channel;

[0024] 30 - heating member, 31 - heating tube, 32 - heating head;

[0025] 40 - encapsulating material;

[0026] 91 - first direction, 92 - second direction. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person skilled in the art without creative labor fall within the protection scope of the present disclosure.

[0028] It should be understood that the terms "comprise" and "include" used in the specification and claims of the present disclosure indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0029] It should also be understood that the terms used in the specification of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. As used in the specification and claims of the present disclosure, the singular forms "a", "an" and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should be further understood that the term "and / or" used in the specification and claims of the present disclosure means any combination of one or more of the associated listed items and all possible combinations thereof, and includes these combinations.

[0030] As used in the specification and claims of this document, the term "if' can be interpreted as meaning "when" or "once" or "in response to a determination" or "in response to a detection" depending on the context. Similarly, the phrase "if determined" or "if detected [the described condition or event]" can be interpreted to mean "once determined" or "in response to a determination" or "once detected [the described condition or event]" or "in response to a detection [the described condition or event]" depending on the context.

[0031] The specific embodiments of the present disclosure will be described in detail below in combination with the drawings.

[0032] Figure 1 The overall structure of the head of the embodiment of the present disclosure is shown. As Figure 1As shown, a head for workpiece packaging includes: a first component 10, a second component 20 and a heating component 30; wherein the first component 10 and the second component 20 are oppositely arranged, wherein the second component 20 is formed with a concave-convex structure on the surface of the first side 21 oppositely arranged with the first component 10, so that a shape-fitted contact interface is formed between the first component 10 and the second component 20; the second side 22 surface of the second component 20 opposite to the first component 10 is formed with a heating protrusion 221 extending along the first direction 91, and the upper side of the heating protrusion 221 forms a heating interface; the heating component 30 is arranged inside the second component 20, extends along the first direction 91, and can heat the heating protrusion 221.

[0033] Specifically, the first component 10 can be detachably connected with the second component 20, so that the first component 10 and the second component 20 are stably kept opposite. During the packaging process, the first component 10 pushes the second component 20 to move opposite to the packaging material 40 (such as Figure 5 As shown) of the workpiece (such as a lithium battery), and after contacting with the packaging material 40, the packaging material 40 is heated and melted, so as to be bonded together.

[0034] In some embodiments, the first component 10 and the second component 20 can be oppositely arranged. Specifically, the second component 20 includes a first side 21 and a second side 22. The first side 21 is a side facing the first component 10, and the second side 22 is a side facing away from the first component 10. The second component 20 is detachably mounted on the first component 10, and when the first component 10 is fixedly connected with the second component 20, the first side 21 of the second component 20 is in close contact with the first component 10. The second component 20 is formed with a concave-convex structure on the surface of the first side 21 oppositely arranged with the first component 10. The concave-convex structure can include grooves or protrusions, and the number of grooves and protrusions is not limited. Through the formed concave-convex structure, a shape-fitted contact interface is formed between the first component 10 and the second component 20.

[0035] On the surface of the second side 22 of the second component 20, a heating protrusion 221 extending along the first direction 91 can be formed, and the upper side of the heating protrusion 221 can form a heating interface. The material of the heating protrusion 221 is preferably a material that can easily transfer heat, such as metal, so that heat can be more efficiently conducted to the surface of the heating protrusion 221, and then to the upper side of the heating protrusion 221. The heating protrusion 221 is in the form of a strip as a whole, and the surface of the heating protrusion 221 contacting with the packaging material of the workpiece to be packaged can be the upper side of the heating protrusion 221, which is horizontal to the first side 21, for contacting with the packaging material of the workpiece to be packaged, and melting and bonding the packaging material together at this position.

[0036] Figures 2a-2c The overall structure of the first component and the second component of the embodiment of the present disclosure is shown. As shown in the figure, the heating component 30 can be arranged inside the second component 20 and extend along the first direction 91. Specifically, a channel 23 (not shown in the figure) is formed inside the second component 20, which is in the shape of a cylinder and extends along the first direction 91 inside the second component 20, and the heating component 30 can be placed in the channel 23. The channel 23 can or can not pass through the second component 20, and it is preferred that the channel 23 pass through the second component 20 to facilitate the installation and removal of the heating component 30. Figure 2a

[0037] The heating component 30 is in the shape of a cylinder, and the length of the heating component 30 along the first direction 91 corresponds to the length of the channel 23 along the first direction 91, but the present disclosure is not limited thereto. For example, the length of the heating component 30 can be slightly greater than the length of the channel 23 to facilitate removal; or the length of the heating component 30 can be shorter than the length of the channel 23 to avoid the influence of the heating component 30 on other components around it when heating and to reduce heat loss. When the heating component 30 generates heat, the heat can be conducted from the heating component 30 to the heating protruding part 221, and the surface of the heating protruding part 221 in contact with the packaging material is uniformly heated, thereby uniformly melting the packaging material 40 in contact with the heating protruding part 221, so that the packaging material 40 is bonded together.

[0038] The cross section of the channel 23 and the heating component 30 correspond to each other, and the shape of the cross section is not limited, for example, it can be circular, polygonal, oval, or any other regular or irregular shape, but it is preferred to be circular to facilitate installation. The diameter of the cross section of the channel 23 is slightly larger than the diameter of the cross section of the heating component 30. When the second component 20 and the heating component 30 are at a high temperature, both the second component 20 and the heating component 30 will expand due to thermal expansion. At this time, because the diameter of the cross section of the channel 23 is slightly larger than the diameter of the cross section of the heating component 30, there is a gap between the two, and therefore, the expansion will fill the gap between the channel 23 and the heating component 30, thereby avoiding direct extrusion between the channel 23 and the heating component 30 due to no reserved gap, which causes deformation of the heating component 30.

[0039] As shown in the figure, the heating component 30 can be arranged inside the second component 20 and extend along the first direction 91. Specifically, a channel 23 (not shown in the figure) is formed inside the second component 20, which is in the shape of a cylinder and extends along the first direction 91 inside the second component 20, and the heating component 30 can be placed in the channel 23. The channel 23 can or can not pass through the second component 20, and it is preferred that the channel 23 pass through the second component 20 to facilitate the installation and removal of the heating component 30. Figure 2b , Figure 2c ​In some embodiments, as shown, the first component 10 is formed with a first groove 11 on the surface opposite to the second component 20 along the first direction 91; and the second component 20 is formed with a first protrusion 211 on the first side 21 of the second component 20 opposite to the first groove 11; wherein the first groove 11 and the first protrusion 211 are adapted to be insertedly fitted, and the contact interface between the first component 10 and the second component 20 is formed in a concave-convex shape corresponding to the first groove 11 and the first protrusion 211.

[0040] In some embodiments, the first groove 11 extends through the first component 10 along the first direction 91 on the surface opposite to the second component 20, and the first protrusion 211 extends across the second component 20 along the first direction 91 on the first side 21 of the second component 20. In some embodiments, the first groove 11 and the first protrusion 211 are adapted to be insertedly fitted. Specifically, the contact interface between the first component 10 and the second component 20 is formed in a concave-convex shape, and the first groove 11 and the first protrusion 211 have the same length along the first direction 91 and the same width along the second direction 92, and correspond to each other so that the first protrusion 211 can be completely inserted into the first groove 11 and tightly fitted with each other. When the first protrusion 211 is completely inserted into the first groove 11, the first component 10 and the second component 20 can be stable in the second direction 92, and the movement of the first component 10 and the second component 20 in the direction parallel to the first component 10 can be limited. In the illustrated embodiment, the first direction 91 is the direction in which the heating protrusion 221 and the heating component 30 extend, which can be the length direction of the head; and the second direction 92 can be the width direction of the head.

[0041] In some embodiments, the first component 10 is formed with a second groove 12 and a third protrusion 13 alternately arranged on the surface opposite to the second component 20 along the second direction 92, wherein the second direction 92 intersects the first direction 91; and the second component 20 is formed with a third groove 213 and a second protrusion 212 alternately arranged on the first side 21 of the second component 20, wherein the second protrusion 212 is opposite to the second groove 12, and the third groove 213 is opposite to the third protrusion 13.

[0042] In some embodiments, on the surface opposite to the second component 20, the second groove 12 runs through the entire first component 10 along the second direction 92, and the second protrusion 212 runs across the entire second component 20 along the second direction 92. The second groove 12 and the second protrusion 212 have the same length along the second direction 92 and the same width along the first direction 91, so that the second protrusion 212 can exactly and completely fall into the second groove 12 and tightly fit with each other.

[0043] Meanwhile, the side of the second component 20 facing the first component 10, i.e. the first side 21, is formed with a third groove 213 running across the entire second component 20 along the second direction 92 but being interrupted by the first protrusion 211. Correspondingly, the side of the first component 10 facing the second component 20 is formed with a third protrusion 13 opposite to the third groove 213. The third protrusion 13 runs across the entire second component 20 along the second direction 92 but is interrupted by the first groove 11. The third groove 213 and the second protrusion 212 can be alternately arranged. The third groove 213 and the third protrusion 13 have the same length along the second direction 92 and the same width along the first direction 91, and the two parts interrupted by the first protrusion 211 have the same length along the second direction 92 and the same width along the first direction 91, respectively, and the two parts interrupted by the first protrusion 211 have the same horizontal cross-sectional shape, respectively, so that the third protrusion 13 can exactly and completely fall into the third groove 213 and tightly fit with each other.

[0044] When the second protrusion 212 completely falls into the second groove 12 and the third protrusion 13 completely falls into the third groove 213, the first component 10 and the second component 20 can be kept relatively static along the first direction 91.

[0045] As shown in FIG. 1, Figure 2b On the second component 20, the first protrusion 211 and the second protrusion 212 are perpendicular to each other, so that the third groove 213 forms a cubic space. As shown in FIG. 1, Figure 2c On the first component 10, the first groove 11 and the second groove 12 are perpendicular to each other, so that the third protrusion 13 forms a cubic solid block. The cubic space and the cubic solid block have corresponding horizontal cross-sectional shapes and sizes, so that the cubic solid block can exactly and completely fall into the cubic space and tightly fit with each other.

[0046] In addition, as shown in FIG. 1, Figure 2b , Figure 2c On the first component 10 and the second component 20, there are multiple second grooves 12, third protrusions 13, second protrusions 212 and third grooves 213, which are evenly distributed on the side of the first component 10 facing the first component 10 and the side of the first component 10 facing the first component 10. Through such arrangement, the stability of the connection between the first component 10 and the second component 20 can be further increased.

[0047] Since the first recess 11, the second recess 12, and the third protrusion 13 on the first component 10 are connected to the first protrusion 211, the second protrusion 212, and the third recess 213 on the second component 20 respectively through the plug-in connection, the first component 10 and the second component 20 can remain relatively static in the first direction 91 and the second direction 92, and the first component 10 and the second component 20 only need to be fixed in the direction perpendicular to the first side 21, such as installing the fastener in the direction perpendicular to the first side 21, so as to realize the mutual fixation of the first component 10 and the second component 20 in each direction.

[0048] In some embodiments, the first component 10 and the second component 20 are fixedly connected through the fastener.

[0049] As described above, the existing design can make the first component 10 and the second component 20 remain relatively static in the first direction 91 and the second direction 92. Since the first component 10 and the second component 20 are fixed together in each direction during the working process of the package, the first component 10 and the second component 20 need to be fixed in the direction perpendicular to the first side 21. The fixing manner of the two in the direction perpendicular to the first side 21 is not limited, but is preferably detachably screwed through the fastener. At this time, since the connection is made in a detachable manner, when the second component 20 is damaged during use, the user can replace the second component 20 more conveniently. In some embodiments, the third protrusion 13 is formed with a first threaded hole 131, and the third recess 213 is formed with a second threaded hole 2131 opposite to the first threaded hole 131.

[0050] Specifically, the first threaded hole 131 can be formed on the third protrusion 13 of the first component 10 and the third recess 213 of the second component 20, or the second threaded hole 2131 can be formed on the second recess 12 of the first component 10 and the second protrusion 212 of the second component 20. The embodiment is preferably the former, and the advantage of the former is that when the second component 20 is penetrated, the third recess 213 is penetrated instead of the third protrusion 13, and the penetration distance of the second component 20 is shorter, so the length of the fastener required by the former is relatively shorter.

[0051] The first component 10 and the second component 20 can be threadedly connected by fasteners by passing the fasteners through the first threaded hole 131 and the second threaded hole 2131. The first threaded hole 131 and the second threaded hole 2131 have the same thread size and the same thread direction, so that the fasteners can pass through smoothly. The fasteners are preferably bolts. The bolts can be additionally provided with washers, so that when the heads of the bolts are in contact with the second side 22 of the second component 20 during the process of tightening, the second component 20 is prevented from being pressed too hard by the heads of the bolts that continue to be tightened, so that the second component 20 is not deformed.

[0052] In addition, as shown in Figure 2b 、 Figure 2c , there can be a plurality of second grooves 12, third protrusions 13, second protrusions 212, and third grooves 213 on the first component 10 and the second component 20, which are uniformly distributed on the side of the first component 10 facing the second component 20 and the side of the second component 20 facing the first component 10. At this time, because there are a plurality of corresponding third protrusions 13 and third grooves 213, there are also a plurality of corresponding first threaded holes 131 and second threaded holes 2131, so that the first component 10 and the second component 20 can be threadedly connected by a plurality of fasteners, so that the pressure on a single fastener can be effectively distributed, and the threads are prevented from being damaged.

[0053] Figure 4 The overall structure of the closure head of the embodiments of the present disclosure is shown.

[0054] As shown in Figure 4 , in some embodiments, the heating protrusion 221 includes a first heating protrusion 2211 and a second heating protrusion 2212 parallel to the first heating protrusion 2211.

[0055] The length of the first heating protrusion 2211 and the second heating protrusion 2212 in the first direction 91 is the same, and the first heating protrusion 2211 and the second heating protrusion 2212 are parallel to each other. At this time, the packaging material can be heated simultaneously with the first heating protrusion 2211 and the second heating protrusion 2212, and the packaging material is uniformly bonded by heat melting at two parallel positions, so that the packaging material can realize twice packaging after one processing, increase the production efficiency, and improve the sealing performance of the packaging.

[0056] Figures 3a-3c The vertical sectional structure of the second component and the heating component of the embodiments of the present disclosure is shown.

[0057] As shown in Figures 3a-3c , in some embodiments, the heating component 30 includes a heating pipe 31 that penetrates the second component 20.

[0058] The heating component 30 comprises a heating tube 31 and a heating head 32. The heating tube 31 penetrates the passage 23 along the first direction 91 to form a through hole penetrating the second component 20. At this time, since the length of the heating tube 31 along the first direction 91 is the same as that of the heating protrusion 221, and the heating tube 31 is just located in the middle of the projection of the heating protrusion 221 perpendicular to the first side 21 to the first component 10, the heat generated by the heating tube 31 can be evenly conducted to the second component 20, so that the second component 20 can be uniformly heated, thereby improving the packaging effect of the heating protrusion 221.

[0059] The heating head 32 is located at both ends of the heating tube 31 and connected with the external heating circuit, so that the heating tube 31 generates heat. The heating head 32 can be integrally connected with the heating tube 31, or can be detachably connected. The cross-sectional diameter of the heating head 32 can be smaller than the cross-sectional diameter of the heating tube 31 (as shown in Figure 3a , can be equal to the cross-sectional diameter of the heating tube 31 (as shown in Figure 3b , or can be greater than the cross-sectional diameter of the heating tube 31 (as shown in Figure 3c , without limitation. As shown in Figure 3a , Figure 3b When the cross-sectional diameter of the heating head can be smaller than or equal to the cross-sectional diameter of the heating tube 31, the entire heating component 30 can be taken out of the second component 20 more conveniently without detaching the heating head 32. As shown in Figure 3c When the cross-sectional diameter of the heating head can be greater than the cross-sectional diameter of the heating tube 31, the heating heads 32 at both ends of the heating tube 31 need to be detached, so that the heating tube 31 can be taken out of the second component 20, but its advantage is that since the cross-sectional diameter of the heating head 32 at both ends of the heating tube 31 can be greater than the cross-sectional diameter of the heating tube 31, the heating head 32 can be used to fix the heating tube 31 in the passage 23, preventing the heating tube 31 from moving along the first direction 91 and affecting the heating effect.

[0060] In some embodiments, the head further comprises a passage 23 arranged inside the heating protrusion 221, wherein the axis of the passage 23 is a straight line or a curve.

[0061] Specifically, the channel 23 is disposed inside the heating protrusion 221, close to the side of the heating protrusion 221 that contacts the encapsulation material, thereby reducing the distance heat needs to be conducted to the contact surface, thus increasing the temperature of the contact surface and reducing heat loss. In some embodiments, the axis of the aforementioned channel 23 can be a straight line, which facilitates the installation of the aforementioned heating tube 31 within the aforementioned channel 23. In some embodiments, the axis of the aforementioned channel 23 can also be curved, that is, the aforementioned channel 23 can be curved and disposed inside the aforementioned heating protrusion 221. When the aforementioned heating tube 31 is installed in the aforementioned channel, the contact area between the heating tube 31 and the heating protrusion 221 can be increased, thereby improving the heating efficiency.

[0062] Figure 5 A vertical cross-sectional structural diagram of the head assembly according to an embodiment of this disclosure is shown.

[0063] like Figure 5 As shown, a head assembly for packaging a pouch battery is provided, wherein the head assembly includes a first head 1a and a second head 1b, the first head 1a and the second head 1b being any of the head types described in the embodiments disclosed herein, the workpiece being located between the first head 1a and the second head 1b, the workpiece being a pouch battery, and the first head 1a and the second head 1b being symmetrically arranged along the pouch battery.

[0064] Specifically, the first end cap 1a and the second end cap 1b are symmetrically arranged along the encapsulation material 40 of the pouch battery. The encapsulation material 40 of the pouch battery is located between the first end cap 1a and the second end cap 1b, so that the encapsulation material 40 is precisely positioned between the first end cap 1a and the second end cap 1b. When the first end cap 1a and the second end cap 1b approach and press against each other, the encapsulation material 40 between the first end cap 1a and the second end cap 1b is simultaneously heated, thereby melting and bonding the encapsulation material 40 at the contact points with the first end cap 1a and the second end cap 1b, thus encapsulating the pouch battery. This allows the encapsulation material 40 to form two layers of encapsulation with a single heating process. When the pouch battery is a lithium battery, the lithium battery aluminum-plastic film can be melted and used to encapsulate the lithium battery.

[0065] This disclosure also provides a packaging device, wherein the packaging device includes a head assembly as described in any of the embodiments of this disclosure, wherein the first head 1a and the second head 1b of the head assembly of the packaging device are located on symmetrical sides of the pouch battery, and during packaging, the first head 1a and the second head 1b respectively contact the opposite sides of the pouch battery.

[0066] Specifically, the packaging device comprises any one of the head assembly in the embodiments of the present disclosure, wherein the first head 1a and the second head 1b are located on the symmetrical two sides of the soft-pack battery, and the first head 1a and the second head 1b can move towards each other and contact the opposite two sides of the soft-pack battery during packaging.

[0067] The head, head assembly or packaging device provided by the present disclosure can achieve the following technical effects, for example.

[0068] By forming a channel inside the second component and arranging the heating component in the channel, the head can be uniformly heated, thereby avoiding the inconsistency of the thickness of the edge of the battery aluminum plastic film in heat melting, so as to improve the sealing performance of the battery.

[0069] In addition, by arranging the protrusion and the groove on the opposite surfaces of the first component and the second component, respectively, the first component and the second component can be connected by insertion, so that the user can more easily align the threaded holes of the first component and the second component, thereby enabling the user to more quickly and conveniently install, and this can also avoid the problem of mutual misalignment between the first component and the second component after long-term work.

[0070] It should be understood that the above beneficial effects are only a non-exhaustive example description, and are not all the beneficial effects of the present disclosure. Different embodiments can achieve different beneficial effects.

[0071] Although the embodiments of the present disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes and substitutions can be made by those skilled in the art without departing from the spirit and scope of the present disclosure. It should be understood that various alternatives to the embodiments of the present disclosure described herein can be employed in practicing the present disclosure. The appended claims are intended to define the scope of protection of the present disclosure and thus cover equivalents or alternatives within the scope of these claims.

Claims

1. A sealing head for workpiece encapsulation, characterized in that, include: The components include a first component (10), a second component (20), and a heating component (30); wherein, The first component (10) and the second component (20) are disposed opposite to each other, wherein the second component (20) has a concave-convex structure formed on the surface of the first side (21) disposed opposite to the first component (10), so that a shape-fitting contact interface is formed between the first component (10) and the second component (20); On the second side (22) surface of the second component (20) opposite to the first component (10), a heating protrusion (221) extending along the first direction (91) is formed, and a heating interface is formed on the upper side of the heating protrusion (221); The heating element (30) is disposed inside the second element (20), extends along the first direction (91), and is capable of heating the heating protrusion (221).

2. The end cap according to claim 1, characterized in that, On a surface opposite to the second component (20), the first component (10) has a first groove (11) formed along the first direction (91); On the surface of the first side (21) of the second component (20), a first protrusion (211) is formed opposite to the first groove (11); wherein the first groove (11) and the first protrusion (211) are adapted to be inserted into each other, and the contact interface formed between the first component (10) and the second component (20) is concave and convex, corresponding to the first groove (11) and the first protrusion (211).

3. The end cap according to claim 2, characterized in that, On a surface disposed opposite to the second component (20), the first component (10) has alternating second grooves (12) and third protrusions (13) formed in a second direction (92), wherein the second direction (92) intersects the first direction (91); On the surface of the first side (21) of the second component (20), there are alternately arranged third grooves (213) and second protrusions (212), wherein the second protrusions (212) are arranged opposite to the second grooves (12), and the third grooves (213) are arranged opposite to the third protrusions (13).

4. The end cap according to claim 1, characterized in that, The first component (10) and the second component (20) are fixedly connected by fasteners.

5. The end cap according to claim 3, characterized in that, A first threaded hole (131) is formed on the third protrusion (13), and a second threaded hole (2131) opposite to the first threaded hole (131) is formed in the third groove (213).

6. The end cap according to claim 1, characterized in that, The heating protrusion (221) includes a first heating protrusion (2211) and a second heating protrusion (2212) parallel to the first heating protrusion (2211).

7. The end cap according to claim 1, characterized in that, The heating component (30) includes a heating tube (31) that passes through the second component (20).

8. The end cap according to claim 1, characterized in that, The end cap also includes a channel (23), which is disposed inside the heating protrusion (221), wherein the axis of the channel (23) is a straight line or a curve.

9. A head assembly for packaging pouch batteries, characterized in that, The end cap assembly includes a first end cap (1a) and a second end cap (1b), the first end cap (1a) and the second end cap (1b) being end caps as described in any one of claims 1-8, the workpiece being located between the first end cap (1a) and the second end cap (1b), wherein the workpiece is a pouch battery, and the first end cap (1a) and the second end cap (1b) are symmetrically arranged along the pouch battery.

10. A packaging device, characterized in that, The packaging device includes a head assembly as described in claim 9, wherein the first head (1a) and the second head (1b) of the head assembly are located on symmetrical sides of the pouch battery, and during packaging, the first head (1a) and the second head (1b) respectively contact the opposite sides of the pouch battery.

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