CN204216139U - Energy storage device - Google Patents
Energy storage device Download PDFInfo
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- CN204216139U CN204216139U CN201420642736.4U CN201420642736U CN204216139U CN 204216139 U CN204216139 U CN 204216139U CN 201420642736 U CN201420642736 U CN 201420642736U CN 204216139 U CN204216139 U CN 204216139U
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- 238000004146 energy storage Methods 0.000 title claims abstract description 63
- 238000003466 welding Methods 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 9
- 229910052744 lithium Inorganic materials 0.000 claims description 9
- 239000003792 electrolyte Substances 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 2
- 230000000994 depressogenic effect Effects 0.000 abstract 4
- 238000000034 method Methods 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
Description
技术领域 technical field
本实用新型涉及储能设备领域，具体而言，涉及储能装置。 The utility model relates to the field of energy storage equipment, in particular to an energy storage device.
背景技术 Background technique
超级电容器或者锂电池为市场上常见的储能装置，目前传统的储能装置包括电芯、第一集流体、第二集流体、第一端盖、第二端盖以及用于盛装电芯的管体。第一集流体、第二集流体分别与电芯的两端焊接，第一端盖、第二端盖分别盖住管体两端的开口，并分别与设置于电芯两端的第一集流体、第二集流体连接。其中，第一端盖与第一集流体的连接方式为，第一端盖设置有通孔，第一集流体的一部分从第一端盖的通孔中伸出，第一集流体通孔中伸出并且可直接观察的部分与第一端盖的通孔口直接焊接连接；第一集流体与第一端盖其他无法直接观察的接触面采用超声波点焊或是激光盲焊进行焊接。第一集流体与第一端盖这样的连接方式，第一集流体与第一端盖的连接面积太小，使得电容器电阻较大，并且焊接效果无法量化核实，并使得电容器电阻进一步增加。 Supercapacitors or lithium batteries are common energy storage devices on the market. At present, traditional energy storage devices include battery cells, first current collectors, second current collectors, first end caps, second end caps, and containers for containing the cells. tube body. The first current collector and the second current collector are respectively welded to the two ends of the battery cell, the first end cover and the second end cover respectively cover the openings at both ends of the tube body, and are respectively connected to the first current collector, The second collector is fluidly connected. Wherein, the connection mode between the first end cover and the first current collector is that the first end cover is provided with a through hole, a part of the first current collector protrudes from the through hole of the first end cover, and the through hole of the first current collector The protruding and directly observable part is directly welded to the through hole of the first end cover; the first current collector and other contact surfaces that cannot be directly observed are welded by ultrasonic spot welding or laser blind welding. In the way of connection between the first current collector and the first end cover, the connection area between the first current collector and the first end cover is too small, which makes the resistance of the capacitor larger, and the welding effect cannot be verified quantitatively, and further increases the resistance of the capacitor.
实用新型内容 Utility model content
本实用新型的目的在于提供一种储能装置，以使目前储能装置因集流体与端盖的连接方式导致储能装置电阻较大的状况得到改善。 The purpose of the utility model is to provide an energy storage device, so that the current energy storage device has a relatively high resistance due to the connection mode of the current collector and the end cover.
本实用新型是这样实现的，一种储能装置，包括管体、第一集流体、第一端盖、第二集流体、第二端盖以及电芯， The utility model is realized in this way. An energy storage device includes a pipe body, a first current collector, a first end cover, a second current collector, a second end cover and an electric core,
所述第一端盖、所述第二端盖分别设置于所述管体的两端，所述管体、所述第一端盖以及所述第二端盖形成腔体，所述第一集流体、所述第二集流体以及所述电芯置于所述腔体，所述电芯的两端分别与所述第一集流体、所述第二集流体连接，所述第一集流体与所述第一端盖连接，所述第二集流体与所述第二端盖连接， The first end cap and the second end cap are respectively arranged at both ends of the tube body, the tube body, the first end cap and the second end cap form a cavity, and the first The current collector, the second current collector and the electric core are placed in the cavity, and the two ends of the electric core are respectively connected with the first current collector and the second current collector, and the first current collector The fluid is connected to the first end cap, the second current collector is connected to the second end cap,
所述第一端盖设置有凹陷部，所述第一集流体设置有与所述凹陷部配合的第一凸起部，所述第一集流体与所述第一端盖过盈配合，所述凹陷部与所述第一凸起部通过焊接的方式连接。 The first end cap is provided with a recess, the first current collector is provided with a first protrusion that fits with the recess, and the first current collector is in interference fit with the first end cap, so The concave part is connected to the first protruding part by welding.
进一步地，所述第一集流体、所述第二集流体与所述电芯通过焊接的方式连接。采用焊接方式，所述第一集流体、所述第二集流体与所述电芯连接的紧密度更高，也更牢固，相互之间的电阻相对其他连接方式较低。 Further, the first current collector, the second current collector and the electric core are connected by welding. By welding, the connection between the first current collector and the second current collector and the electric core is more compact and firmer, and the mutual resistance is lower than other connection methods.
进一步地，所述第二集流体与所述管体为一体化结构，所述第二集流体与所述管体组成与所述第二端盖配合的凹陷结构，所述第二集流体与所述第二端盖通过焊接的方式连接。 Further, the second current collector and the pipe body are an integrated structure, the second current collector and the pipe body form a concave structure that cooperates with the second end cover, and the second current collector and the pipe body The second end cap is connected by welding.
采用这种结构，减少了所述第二集流体与所述管体连接的焊接工序，避免焊接引起的电阻不稳定性，也避免了所述第二集流体与所述管体连接时进行的高精度对中装配，降低工装精度，简化工艺要求，同时，凹陷结构使得所述第二端盖与所述管体的连接更加稳固。 With this structure, the welding process for connecting the second current collector to the pipe body is reduced, the resistance instability caused by welding is avoided, and the welding process performed when the second current collector is connected to the pipe body is also avoided. High-precision centering assembly reduces tooling accuracy and simplifies process requirements. At the same time, the concave structure makes the connection between the second end cover and the pipe body more stable.
同时，所述第二集流体与所述第二端盖的接触面积、所述第二集流体与所述电芯的接触面积能够最大化，使得储能装置的电阻也对应的减少。所述第二集流体与所述电芯焊接的焊接轨迹能够覆盖电芯的整个端面，焊接轨迹可见、可控。 At the same time, the contact area between the second current collector and the second end cap, and the contact area between the second current collector and the battery cell can be maximized, so that the resistance of the energy storage device is correspondingly reduced. The welding trajectory of the second current collector and the electric core can cover the entire end face of the electric core, and the welding trajectory is visible and controllable.
进一步地，所述第一端盖设置有第二凸起部，所述第二凸起部设置于所述第一端盖远离所述腔体的一侧。第二凸起部的设置是便 于所述储能装置在使用时，所述第一端盖能够更为方便的与外部的其他器件进行连接。 Further, the first end cap is provided with a second protrusion, and the second protrusion is disposed on a side of the first end cap away from the cavity. The setting of the second protrusion is to facilitate the connection of the first end cover with other external devices when the energy storage device is in use.
进一步地，所述第二端盖设置有第三凸起部，所述第三凸起部设置于所述第二端盖远离所述腔体的一侧。第三凸起部的设置是便于所述储能装置在使用时，所述第二端盖能够更为方便的与外部的其他器件进行连接。 Further, the second end cap is provided with a third protrusion, and the third protrusion is disposed on a side of the second end cap away from the cavity. The provision of the third protrusion is to facilitate the connection of the second end cover with other external devices when the energy storage device is in use.
进一步地，所述第二端盖设置有用于注入电解液的通孔，所述腔体通过所述通孔与外部连通，所述储能装置还包括与所述通孔配合的塞子。通孔的设置使得所述储能装置在生产装配时，工艺更为简单，在内部结构连接完成以后，只需要通过通孔注入电解液，再以塞子将通孔塞住，对腔体进行密封即可。 Further, the second end cap is provided with a through hole for injecting electrolyte, the cavity communicates with the outside through the through hole, and the energy storage device further includes a plug matched with the through hole. The setting of the through hole makes the production and assembly of the energy storage device simpler. After the internal structure connection is completed, it is only necessary to inject electrolyte through the through hole, and then plug the through hole with a plug to seal the cavity. That's it.
进一步地，所述两个塞子包括外塞和内塞，所述内塞设置于所述通孔内，所述外塞设置于所述通孔与外部连通的一端，所述外塞与所述第二端盖通过焊接的方式连接。内塞对通孔连通腔体一端进行密封，外塞对通孔连通外部的一端进行密封，而且外塞焊接在第二端盖上，使得腔体的密封性得到进一步的保证。 Further, the two plugs include an outer plug and an inner plug, the inner plug is arranged in the through hole, the outer plug is arranged at one end of the through hole communicating with the outside, the outer plug and the The second end cap is connected by welding. The inner plug seals the end of the through hole connected to the cavity, the outer plug seals the end of the through hole connected to the outside, and the outer plug is welded on the second end cover, so that the sealing of the cavity is further guaranteed.
进一步地，所述储能装置还包括设置于所述第一端盖、所述管体之间的绝缘圈，所述绝缘圈分别与所述第一端盖、所述管体连接。绝缘圈的设置为了防止所述第一端盖与所述管体直接接触，造成漏电。 Further, the energy storage device further includes an insulating ring disposed between the first end cap and the tube body, and the insulating ring is respectively connected to the first end cap and the tube body. The insulation ring is provided to prevent the first end cap from being in direct contact with the pipe body, causing electric leakage.
进一步地，所述储能装置还包括用于密封所述腔体的密封圈，所述管体的内壁设置有与所述密封圈配合的第四凸起部，所述密封圈的内侧与所述第一端盖连接，所述密封圈的外侧与所述管体的内壁连接。所述密封圈通过与第一端盖、管体的配合对空腔进行了密封，防止电解液外漏。 Further, the energy storage device further includes a sealing ring for sealing the cavity, the inner wall of the pipe body is provided with a fourth protrusion that cooperates with the sealing ring, and the inner side of the sealing ring is in contact with the sealing ring. The first end cap is connected, and the outer side of the sealing ring is connected with the inner wall of the pipe body. The sealing ring seals the cavity by cooperating with the first end cap and the tube body to prevent electrolyte leakage.
进一步地，所述储能装置为超级电容器或者锂电池。超级电容器或者锂电池的工作状态时，与一般的电容或电池相比，有更大的电流，本实用新型提供的储能装置的结构，就是针对这种大电流的工作状态的。 Further, the energy storage device is a supercapacitor or a lithium battery. When the supercapacitor or lithium battery is in working state, compared with the general capacitor or battery, there is a larger current. The structure of the energy storage device provided by the utility model is aimed at the working state of this large current.
本实用新型提供的储能装置，由管体、第一集流体、第一端盖、第二集流体、第二端盖以及电芯组成。第一端盖设置有凹陷部，第一集流体设置有与第一端盖的所述凹陷部配合的第一凸起部，述第一集流体与所述第一端盖过盈配合连接，凹陷部与第一凸起部通过焊接的方式连接。这样的结构，能充分利用管体内的空间，增大了第一集流体与第一端盖的接触面积、第一集流体与电芯的接触面积，使得储能装置的电阻较小。同时凹陷部与第一凸起部的焊接轨迹可见、可控，而且焊点位置在管体内，对空腔密封性没有任何影响。 The energy storage device provided by the utility model is composed of a pipe body, a first current collector, a first end cover, a second current collector, a second end cover and an electric core. The first end cap is provided with a recessed portion, the first current collector is provided with a first protrusion that cooperates with the recessed portion of the first end cap, and the first current collector is connected to the first end cap with an interference fit, The concave part is connected with the first protruding part by welding. Such a structure can make full use of the space in the tube body, increase the contact area between the first current collector and the first end cover, and the contact area between the first current collector and the battery core, so that the resistance of the energy storage device is small. At the same time, the welding track between the concave part and the first convex part is visible and controllable, and the position of the welding spot is in the tube body, which has no influence on the airtightness of the cavity.
为使本实用新型的上述目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附附图，作详细说明如下。 In order to make the above-mentioned purpose, features and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below, together with the accompanying drawings, and are described in detail as follows.
附图说明 Description of drawings
为了更清楚地说明本实用新型实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本实用新型的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.
图1为本实用新型第一实施例提供的储能装置的外部结构示意图； Fig. 1 is a schematic diagram of the external structure of the energy storage device provided by the first embodiment of the utility model;
图2为本实用新型第一实施例提供的储能装置的内部结构示意图； Fig. 2 is a schematic diagram of the internal structure of the energy storage device provided by the first embodiment of the utility model;
图3为本实用新型第一实施例提供的储能装置的内部结构示意图的局部放大图； Fig. 3 is a partial enlarged view of the internal structure schematic diagram of the energy storage device provided by the first embodiment of the utility model;
图4为本实用新型第一实施例提供的储能装置的俯视图； Fig. 4 is a top view of the energy storage device provided by the first embodiment of the utility model;
图5为本实用新型第一实施例提供的储能装置的仰视视图； Fig. 5 is a bottom view of the energy storage device provided by the first embodiment of the present invention;
图6为本实用新型第二实施例提供的储能装置的内部结构示意图。 Fig. 6 is a schematic diagram of the internal structure of the energy storage device provided by the second embodiment of the present invention.
其中，101-管体；102-第一集流体；103-第一端盖；104-第二集流体；105-第二端盖；106-电芯；107-凹陷部；108-第一凸起部；109-第二凸起部；110-第三凸起部；111-通孔；112-外塞；113-内塞；114-绝缘圈；115-密封圈；116-第四凸起部。 Among them, 101-tube body; 102-first current collector; 103-first end cover; 104-second current collector; 105-second end cover; 106-cell; 109-second raised part; 110-third raised part; 111-through hole; 112-outer plug; 113-inner plug; 114-insulating ring; 115-sealing ring; 116-fourth raised part department.
具体实施方式 Detailed ways
下面将结合本实用新型实施例中附图，对本实用新型实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本实用新型一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本实用新型实施例的组件可以以各种不同的配置来布置和设计。因此，以下对在附图中提供的本实用新型的实施例的详细描述并非旨在限制要求保护的本实用新型的范围，而是仅仅表示本实用新型的选定实施例。基于本实用新型的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本实用新型保护的范围。 The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. . The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.
超级电容器或者锂电池为市场上常见的储能装置，目前传统的储能装置包括电芯、第一集流体、第二集流体、第一端盖、第二端盖以及用于盛装电芯的管体。第一集流体、第二集流体分别与电芯的两端焊接，第一端盖、第二端盖分别盖住管体两端的开口，并分别与设置于电芯两端的第一集流体、第二集流体连接。其中，第一端盖与第一集流体的连接方式为，第一端盖设置有通孔，第一集流体的一部分从第一端盖的通孔中伸出，第一集流体通孔中伸出并且可直接观察的部分与第一端盖的通孔口直接焊接连接；第一集流体 与第一端盖其他无法直接观察的接触面采用超声波点焊或是激光盲焊进行焊接。 Supercapacitors or lithium batteries are common energy storage devices on the market. At present, traditional energy storage devices include battery cells, first current collectors, second current collectors, first end caps, second end caps, and containers for containing the cells. tube body. The first current collector and the second current collector are respectively welded to the two ends of the battery cell, the first end cover and the second end cover respectively cover the openings at both ends of the tube body, and are respectively connected to the first current collector, The second collector is fluidly connected. Wherein, the connection mode between the first end cover and the first current collector is that the first end cover is provided with a through hole, a part of the first current collector protrudes from the through hole of the first end cover, and the through hole of the first current collector The protruding and directly observable part is directly welded to the through hole of the first end cover; the first current collector and other contact surfaces that cannot be directly observed are welded by ultrasonic spot welding or laser blind welding.
发明人经过长期观察和研究发现，第一集流体与第一端盖这样的连接方式，第一集流体与第一端盖的连接面积太小，使得电容器电阻较大，并且焊接效果无法量化核实，并使得电容器电阻进一步增加。 After long-term observation and research, the inventor found that the connecting area between the first current collector and the first end cover is too small, which makes the resistance of the capacitor larger, and the welding effect cannot be quantified and verified. , and further increases the capacitor resistance.
本实用新型实施例提供的储能装置，第一端盖设置有凹陷部，第一集流体设置有与第一端盖的凹陷部配合的第一凸起部，述第一集流体与第一端盖过盈配合连接，凹陷部与第一凸起部通过焊接的方式连接。采用这样的连接方式，第一集流体与第一端盖的连接面积大大增加，且焊接位置改变为凹陷部与第一凸起部的连接处，焊接轨迹可见、可控，不需要再使用超声波点焊或是激光盲焊，简化了产品的工艺，提高生产效率和可靠性。 In the energy storage device provided by the embodiment of the present invention, the first end cover is provided with a recessed part, and the first current collector is provided with a first raised part that cooperates with the recessed part of the first end cover. The end cover is connected by interference fit, and the concave part is connected with the first convex part by welding. With this connection method, the connection area between the first current collector and the first end cap is greatly increased, and the welding position is changed to the connection between the concave part and the first raised part, the welding trajectory is visible and controllable, and no need to use ultrasonic waves Spot welding or laser blind welding simplifies the product process and improves production efficiency and reliability.
参阅图1-5，本实用新型第一实施例提供的储能装置，包括管体101、第一集流体102、第一端盖103、第二集流体104、第二端盖105以及电芯106。 Referring to Figures 1-5, the energy storage device provided by the first embodiment of the present invention includes a tube body 101, a first current collector 102, a first end cover 103, a second current collector 104, a second end cover 105 and an electric core 106.
第一端盖103、第二端盖105设置于管体101的两端，管体101、第一端盖103以及第二端盖105形成腔体，第一集流体102、第二集流体104以及电芯106置于腔体，电芯106的两端分别与第一集流体102、第二集流体104连接，第一集流体102与第一端盖103连接，第二集流体104与第二端盖105连接。 The first end cap 103 and the second end cap 105 are arranged at both ends of the pipe body 101, the pipe body 101, the first end cap 103 and the second end cap 105 form a cavity, and the first current collector 102 and the second current collector 104 And the electric core 106 is placed in the cavity, and the two ends of the electric core 106 are respectively connected with the first current collector 102 and the second current collector 104, the first current collector 102 is connected with the first end cover 103, and the second current collector 104 is connected with the second current collector 104. The two end caps 105 are connected.
第一端盖103设置有凹陷部107，第一集流体102设置有与凹陷部107配合的第一凸起部108，第一集流体102与第一端盖103过盈配合，凹陷部107与第一凸起部108通过焊接的方式连接。 The first end cover 103 is provided with a recessed portion 107, the first current collector 102 is provided with a first raised portion 108 cooperating with the recessed portion 107, the first current collector 102 is interference fit with the first end cover 103, the recessed portion 107 and The first protruding portion 108 is connected by welding.
凹陷部107的凹陷深度与第一凸起部108的凸起高度相等，使得第一集流体102与第一端盖103可以相互卡紧。凹陷部107与第 一凸起部108焊接的焊点位于凹陷部107与第一凸起部108的外部接缝处，进而使得焊接时的焊接轨迹可直接看见。在进行焊接时，如果出现误差，就可以直接观察到，便于及时控制、调整。 The concave depth of the concave portion 107 is equal to the height of the first convex portion 108 , so that the first current collector 102 and the first end cap 103 can be clamped to each other. The welding spot of the recessed portion 107 and the first raised portion 108 is located at the outer seam of the recessed portion 107 and the first raised portion 108, so that the welding track during welding can be directly seen. When welding, if there is an error, it can be directly observed, which is convenient for timely control and adjustment.
第一集流体102与第一端盖103采用这样的连接方式，能充分利用管体101内的空间，增大了第一集流体102与第一端盖103的接触面积、第一集流体102与电芯106的接触面积，使得储能装置的电阻较小。而且凹陷部107与第一凸起部108焊接的焊点位于管体101内，对储能装置的空腔的密封性没有任何影响。 The first current collector 102 and the first end cover 103 are connected in such a way that the space in the pipe body 101 can be fully utilized, and the contact area between the first current collector 102 and the first end cover 103 is increased, and the first current collector 102 The contact area with the battery cell 106 makes the resistance of the energy storage device smaller. Moreover, the welding spot where the recessed part 107 is welded to the first raised part 108 is located in the tube body 101, and has no influence on the airtightness of the cavity of the energy storage device.
作为本实用新型实施例的优选方式，第一集流体102、第二集流体104与电芯106通过焊接的方式连接。采用焊接方式，第一集流体102、第二集流体104与电芯106的连接紧密度更高，也更牢固。同时，相对于其他连接方式，第一集流体102、第二集流体104与电芯106相互之间的电阻较低。 As a preferred mode of the embodiment of the present utility model, the first current collector 102 , the second current collector 104 and the electric core 106 are connected by welding. By welding, the connection between the first current collector 102 , the second current collector 104 and the battery cell 106 is higher and stronger. At the same time, compared with other connection methods, the resistance among the first current collector 102 , the second current collector 104 and the electric core 106 is relatively low.
作为本实用新型实施例的优选方式，第一端盖103设置有第二凸起部109，第二凸起部109设置于第一端盖103远离腔体的一侧。第二凸起部109的设置是便于储能装置在使用时，第一端盖103能够更为方便的与外部的其他器件进行连接。 As a preferred embodiment of the present invention, the first end cover 103 is provided with a second raised portion 109, and the second raised portion 109 is arranged on a side of the first end cover 103 away from the cavity. The arrangement of the second protrusion 109 facilitates the connection of the first end cover 103 with other external devices more conveniently when the energy storage device is in use.
作为本实用新型实施例的优选方式，第二端盖105设置有第三凸起部110，第三凸起部110设置于第二端盖105远离腔体的一侧。第三凸起部110的设置是便于储能装置在使用时，第二端盖105能够更为方便的与外部的其他器件进行连接。 As a preferred embodiment of the present invention, the second end cover 105 is provided with a third protrusion 110, and the third protrusion 110 is disposed on a side of the second end cover 105 away from the cavity. The arrangement of the third protruding portion 110 facilitates the connection of the second end cover 105 with other external devices more conveniently when the energy storage device is in use.
作为本实用新型实施例的优选方式，第二端盖105设置有用于注入电解液的通孔111，腔体通过通孔111与外部连通，储能装置还包括与通孔111配合的塞子。通孔111的设置使得储能装置在生产装配时，工艺更为简单，在内部结构连接完成以后，只需要通过 通孔111注入电解液，再以塞子将通孔111塞住，即可对腔体进行密封。 As a preferred embodiment of the present utility model, the second end cap 105 is provided with a through hole 111 for injecting electrolyte, the cavity communicates with the outside through the through hole 111 , and the energy storage device also includes a plug matched with the through hole 111 . The setting of the through hole 111 makes the production and assembly of the energy storage device simpler. After the internal structure connection is completed, the electrolyte only needs to be injected through the through hole 111, and then the through hole 111 is plugged with a plug to complete the cavity. Body is sealed.
作为本实用新型实施例的优选方式，两个塞子包括外塞112和内塞113，内塞113设置于通孔111内，外塞112设置于通孔111与外部连通的一端，外塞112与第二端盖105通过焊接的方式连接。内塞113对通孔111连通腔体一端进行密封，外塞112对通孔111连通外部的一端进行密封，而且外塞112焊接在第二端盖105上，使得腔体的密封性得到进一步的保证。 As a preferred mode of the embodiment of the present utility model, the two plugs include an outer plug 112 and an inner plug 113, the inner plug 113 is arranged in the through hole 111, the outer plug 112 is arranged at one end of the through hole 111 communicating with the outside, the outer plug 112 and the The second end cap 105 is connected by welding. The inner plug 113 seals the end of the through hole 111 connected to the cavity, the outer plug 112 seals the end of the through hole 111 connected to the outside, and the outer plug 112 is welded on the second end cover 105, so that the sealing of the cavity is further improved ensure.
作为本实用新型实施例的优选方式，储能装置还包括设置于第一端盖103、管体101之间的绝缘圈114，绝缘圈114分别与第一端盖103、管体101连接。绝缘圈114的设置为了防止第一端盖103与管体101直接接触，造成漏电。 As a preferred embodiment of the utility model, the energy storage device further includes an insulating ring 114 disposed between the first end cover 103 and the tube body 101 , and the insulating ring 114 is respectively connected to the first end cover 103 and the tube body 101 . The insulating ring 114 is provided to prevent the first end cover 103 from directly contacting the tube body 101 , causing electric leakage.
作为本实用新型实施例的优选方式，储能装置还包括用于密封腔体的密封圈115，管体101的内壁设置有与密封圈115配合的第四凸起部116，密封圈115的内侧与第一端盖103连接，密封圈115的外侧与管体101的内壁连接。密封圈115通过与第一端盖103、管体101的配合对空腔进行了密封，防止电解液外漏。 As a preferred mode of the embodiment of the present utility model, the energy storage device further includes a sealing ring 115 for sealing the cavity. The inner wall of the pipe body 101 is provided with a fourth protrusion 116 that cooperates with the sealing ring 115. The inner side of the sealing ring 115 It is connected with the first end cap 103 , and the outer side of the sealing ring 115 is connected with the inner wall of the tube body 101 . The sealing ring 115 seals the cavity by cooperating with the first end cap 103 and the tube body 101 to prevent the electrolyte from leaking out.
进一步地，储能装置为超级电容器或者锂电池。超级电容器或者锂电池的工作状态时，与一般的电容或电池相比，有更大的电流，本实用新型提供的储能装置的结构，就是针对这种大电流的工作状态的。 Further, the energy storage device is a supercapacitor or a lithium battery. When the supercapacitor or lithium battery is in working state, compared with the general capacitor or battery, there is a larger current. The structure of the energy storage device provided by the utility model is aimed at the working state of this large current.
参阅图6，本实用新型第二实施例提供的储能装置，包括管体101、第一集流体102、第一端盖103、第二集流体104、第二端盖105以及电芯106， Referring to Fig. 6, the energy storage device provided by the second embodiment of the present invention includes a tube body 101, a first current collector 102, a first end cover 103, a second current collector 104, a second end cover 105 and an electric core 106,
第一端盖103、第二端盖105设置于管体101的两端，管体101、第一端盖103以及第二端盖105形成腔体，第一集流体102、第二 集流体104以及电芯106置于腔体，电芯106的两端分别与第一集流体102、第二集流体104连接，第一集流体102与第一端盖103连接，第二集流体104与第二端盖105连接， The first end cap 103 and the second end cap 105 are arranged on the two ends of the pipe body 101, the pipe body 101, the first end cap 103 and the second end cap 105 form a cavity, the first current collector 102, the second current collector 104 And the electric core 106 is placed in the cavity, and the two ends of the electric core 106 are respectively connected with the first current collector 102 and the second current collector 104, the first current collector 102 is connected with the first end cover 103, and the second current collector 104 is connected with the second current collector 104. Two end caps 105 are connected,
第一端盖103设置有凹陷部107，第一集流体102设置有与凹陷部107配合的第一凸起部108，第一集流体102与第一端盖103过盈配合，凹陷部107与第一凸起部108通过焊接的方式连接。 The first end cover 103 is provided with a recessed portion 107, the first current collector 102 is provided with a first raised portion 108 cooperating with the recessed portion 107, the first current collector 102 is interference fit with the first end cover 103, the recessed portion 107 and The first protruding portion 108 is connected by welding.
凹陷部107的凹陷深度与第一凸起部108的凸起高度相配合，使得第一集流体102与第一端盖103可以相互卡紧。凹陷部107与第一凸起部108焊接的焊点位于凹陷部107与第一凸起部108的外部接缝处，进而使得焊接时的焊接轨迹可直接看见。在进行焊接时，如果出现误差，就可以直接观察到，便于及时控制、调整。 The recessed depth of the recessed portion 107 matches the raised height of the first raised portion 108 , so that the first current collector 102 and the first end cover 103 can be clamped to each other. The welding spot of the concave part 107 and the first convex part 108 is located at the outer joint of the concave part 107 and the first convex part 108, so that the welding track during welding can be directly seen. When welding, if there is an error, it can be directly observed, which is convenient for timely control and adjustment.
第一集流体102与第一端盖103采用这样的连接方式，能充分利用管体101内的空间，增大了第一集流体102与第一端盖103的接触面积、第一集流体102与电芯106的接触面积，使得储能装置的电阻较小。而且凹陷部107与第一凸起部108焊接的焊点位于管体101内，对储能装置的空腔的密封性没有任何影响。 The first current collector 102 and the first end cover 103 are connected in such a way that the space in the pipe body 101 can be fully utilized, and the contact area between the first current collector 102 and the first end cover 103 is increased, and the first current collector 102 The contact area with the battery cell 106 makes the resistance of the energy storage device smaller. Moreover, the welding spot where the recessed part 107 is welded to the first raised part 108 is located in the tube body 101, and has no influence on the airtightness of the cavity of the energy storage device.
作为本实用新型实施例的优选方式，第二集流体104与管体101为一体化结构，第二集流体104与管体101组成与第二端盖105配合的凹陷结构，第二集流体104与第二端盖105通过焊接的方式连接。 As a preferred mode of the embodiment of the present utility model, the second current collector 104 and the pipe body 101 are an integrated structure, and the second current collector 104 and the pipe body 101 form a concave structure that cooperates with the second end cover 105. The second current collector 104 It is connected with the second end cap 105 by welding.
采用这种结构，减少了第二集流体104与管体101连接的焊接工序，避免焊接引起的电阻不稳定性，也避免了第二集流体104与管体101连接时需要进行的高精度对中装配，降低工装精度，简化工艺要求。同时，凹陷结构使得第二端盖105与管体101的连接更加稳固。 With this structure, the welding process for connecting the second current collector 104 to the pipe body 101 is reduced, resistance instability caused by welding is avoided, and high-precision alignment required when the second current collector 104 is connected to the pipe body 101 is avoided. Medium assembly reduces tooling accuracy and simplifies process requirements. At the same time, the concave structure makes the connection between the second end cover 105 and the tube body 101 more stable.
同时，第二集流体104与第二端盖105的接触面积、第二集流体104与电芯106的接触面积能够最大化，使得储能装置的电阻也对应的减少。第二集流体104与电芯106焊接的焊接轨迹能够覆盖电芯的整个端面，焊接轨迹可见、可控。 At the same time, the contact area between the second current collector 104 and the second end cap 105 and the contact area between the second current collector 104 and the battery cell 106 can be maximized, so that the resistance of the energy storage device is correspondingly reduced. The welding trajectory of the second current collector 104 and the electric core 106 can cover the entire end face of the electric core, and the welding trajectory is visible and controllable.
在本实施例中，储能装置为超级电容器或者锂电池。超级电容器或者锂电池的工作状态时，与一般的电容或电池相比，有更大的电流，本实用新型提供的储能装置的结构，就是针对这种大电流的工作状态的。 In this embodiment, the energy storage device is a supercapacitor or a lithium battery. When the supercapacitor or lithium battery is in working state, compared with the general capacitor or battery, there is a larger current. The structure of the energy storage device provided by the utility model is aimed at the working state of this large current.
以上所述仅为本实用新型的优选实施例而已，并不用于限制本实用新型，对于本领域的技术人员来说，本实用新型可以有各种更改和变化。凡在本实用新型的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本实用新型的保护范围之内。 The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611471A (en) * | 2017-10-17 | 2018-01-19 | 广东正业科技股份有限公司 | A kind of battery and its manufacturing method |
| CN115911694A (en) * | 2022-11-29 | 2023-04-04 | 合肥国轩高科动力能源有限公司 | A butterfly welding structure, assembly method and square battery |
| CN117199726A (en) * | 2023-08-31 | 2023-12-08 | 广东微电新能源有限公司 | Energy storage devices and electronic equipment |
| DE102022132405A1 (en) * | 2021-12-23 | 2024-06-06 | Skeleton Technologies GmbH | Process for producing a supercapacitor |
-
2014
- 2014-10-30 CN CN201420642736.4U patent/CN204216139U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107611471A (en) * | 2017-10-17 | 2018-01-19 | 广东正业科技股份有限公司 | A kind of battery and its manufacturing method |
| DE102022132405A1 (en) * | 2021-12-23 | 2024-06-06 | Skeleton Technologies GmbH | Process for producing a supercapacitor |
| CN115911694A (en) * | 2022-11-29 | 2023-04-04 | 合肥国轩高科动力能源有限公司 | A butterfly welding structure, assembly method and square battery |
| CN117199726A (en) * | 2023-08-31 | 2023-12-08 | 广东微电新能源有限公司 | Energy storage devices and electronic equipment |
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