Electric pile stacking positioning device
By introducing a frame assembly, a first positioning mechanism and a second positioning mechanism into the fuel cell stack positioning device, the problems of poor flexibility and insufficient versatility of the existing devices are solved, and flexible positioning and stable stacking of different stacks are achieved.
Patent Information
- Application Number
- CN202420394885.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-01
AI Technical Summary
The existing fuel cell stack positioning devices have poor flexibility, and are difficult to adapt to the positioning of stacks or bases of irregular structures, and are poor in versatility, so they cannot flexibly adapt to the height of stack modules or stacks.
A stack positioning device is provided, including a rack assembly, a first positioning mechanism and a second positioning mechanism. The first positioning mechanism realizes the positioning of the stack through the support and the bolt assembly, and the second positioning mechanism clamps the end plate of the stack through the limiting plate and the bolt assembly, and combines the movement function of the positioning hole and the bolt to achieve flexible positioning of the stack.
The device has the advantages of simple structure, strong operability, low production cost and wide applicability. It can flexibly adapt to different types of stacking stacks to achieve accurate positioning and stable stacking of stacks.
Smart Images
Figure CN222601006U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of battery production and processing, and in particular, to a battery stack positioning device. Background Art
[0002] A fuel cell is an electrochemical power generation device that directly converts chemical energy into electrical energy. It has high energy conversion efficiency, is pollution-free, and noise-free. It is becoming a new generation of ideal energy utilization. A fuel cell stack is made up of bipolar plates, membrane electrodes, and other stack accessories. The consistency of the stacking process is a key process factor that affects the performance of the stack. Therefore, the positioning of components during the stacking process is crucial. Utility Model Content
[0003] The purpose of the present disclosure is to provide a stack positioning device for a battery in order to solve the technical problems in the related art. The specific solution is as follows:
[0004] An embodiment of the present disclosure provides a stack positioning device for a battery, comprising: a frame assembly, a side wall of which is penetrated by a through hole; a first positioning mechanism, which is penetrated by the frame assembly and is used to position the battery; a second positioning mechanism, which is located above the first positioning mechanism in a first direction and is used to clamp the battery, wherein the first direction is the thickness direction of the frame assembly.
[0005] In some embodiments, the first positioning mechanism includes: a support member disposed inside the frame assembly, and a positioning hole is formed through the surface of the support member for positioning the fuel cell stack.
[0006] In some embodiments, the first positioning mechanism further includes: a first bolt assembly, passing through the through hole and connected to the support member, and used for moving in the second direction or the third direction to adjust the distance between the support member and the first rack side wall.
[0007] In some embodiments, the first direction, the second direction, and the third direction are perpendicular to each other.
[0008] In some embodiments, the second positioning mechanism includes: a limiting plate, which is arranged inside the frame assembly and is used to clamp the stack end plate.
[0009] In some embodiments, the second positioning mechanism further includes: a second bolt assembly, which passes through the through hole and is connected to the limiting plate, and is used to move in the second direction or the third direction to adjust the distance between the limiting plate and the side wall of the rack assembly.
[0010] In some embodiments, the frame assembly includes: a first frame, the first frame is hollow inside and is used to connect the support member; and a second frame is sleeved outside the first frame and is used to connect the support member and the limiting plate.
[0011] In some embodiments, the through hole includes a first through hole, a second through hole, and a third through hole, wherein the first through hole is an internal threaded hole.
[0012] In some embodiments, the first bolt assembly includes: a first bolt provided with an external thread for cooperating with the first through hole; and a second bolt, wherein at least one nut is sleeved on an outer side of the second bolt for clamping the frame assembly.
[0013] In some embodiments, a buffer layer is provided on a side of the limiting plate away from the side wall of the rack assembly.
[0014] Compared with the related art, the above solution of the embodiment of the present disclosure has at least the following beneficial effects:
[0015] The battery stack positioning device provided by the present invention is universal. It uses a first positioning mechanism and a second positioning mechanism to coordinate two positioning methods, namely, positioning hole positioning and clamping positioning, to position the battery stack. The bolt assemblies in the first positioning mechanism and the second positioning mechanism can be flexibly moved to keep the positioning device of the present invention accurately positioned for the battery stack. It has the advantages of simple structure, strong operability, low production cost and wide applicability.
[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:
[0018] Figure 1 It is a front structural schematic diagram of a battery stack positioning device according to an exemplary embodiment.
[0019] Figure 2 It is a schematic diagram of the reverse structure of a battery stack positioning device according to an exemplary embodiment.
[0020] Reference numerals:
[0021] Rack assembly 100, first through hole 101, second through hole 102, third through hole 103, first rack 110, second rack 120;
[0022] A first positioning mechanism 200, a first countersunk hole 201, a positioning hole 202, a connecting hole 203, a first bolt assembly 210, a first bolt 211, a second bolt 212, and a support member 220;
[0023] The second positioning mechanism 300 , the second countersunk hole 302 , the second bolt assembly 310 , the limiting plate 320 , the third bolt 311 , and the fourth bolt 312 . DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure 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 present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0025] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. The singular forms "a", "said" and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, and other quantifiers are similar.
[0026] It should be understood that, although the terms first, second, third, etc. may be used to describe in the disclosed embodiments, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, without departing from the scope of the disclosed embodiments, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0027] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates other meanings.
[0028] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0029] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.
[0030] In the related art, the fuel cell stack is usually positioned at four corners during the stacking process, that is, the four corners of the stack are positioned by assembling them separately. The four corners are assembled into a stable frame through a designed self-locking structure for precise positioning. Positioning rods are provided on the diagonal lines. The positioning rods are provided with a pressure plate for reliable press-fitting of the stack, without the need for positioning tooling to slot the end plate. Although this four-corner positioning method can achieve accurate positioning, the flexibility of the positioning device is poor and it is not suitable for positioning of irregularly structured stacks or bases.
[0031] In addition, the positioning device in the prior art has low flexibility and complex structure, making it difficult to adapt to the positioning device of the battery stack, and most battery stack manufacturers use customized positioning devices, with each battery stack corresponding to a set of positioning devices, and the universality of the battery stack positioning device is poor. It is impossible to flexibly adapt the height of the stacking module or battery stack.
[0032] Therefore, in order to meet the requirements of different types of battery stack positioning, the present disclosure provides a battery stack positioning device, including: a frame assembly, the side wall of which is provided with a through hole; a first positioning mechanism, which is provided inside the frame assembly and is used to position the battery stack; a second positioning mechanism, which is located above the first positioning mechanism in a first direction and is used to clamp the battery stack, wherein the first direction is the thickness direction of the frame assembly. The battery stack positioning device provided by the present disclosure can flexibly adapt to different types of battery stacks and has universal applicability. The optional embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings.
[0033] An embodiment of the present disclosure provides a stack positioning device, including: a frame assembly 100 , a first positioning mechanism 200 , and a second positioning mechanism 300 .
[0034] The first positioning mechanism 200 and the second positioning mechanism 300 are respectively installed on the upper layer and the lower layer of the frame assembly 100 to respectively position the positioning pins and the end plates of the stack to achieve stack positioning of the stack.
[0035] In some embodiments, Figure 1 As shown, the frame assembly 100 may include a first frame 110 and a second frame 120. The first frame 110 and the second frame 120 are hollow inside and are constructed in a "U-shaped" structure. The second frame 120 is sleeved outside the first frame 110 to limit the displacement of the first frame 110 in space.
[0036] The spatial displacement direction of the first frame 110 includes a first direction, a second direction and a third direction. The first direction is a thickness extension direction of the frame assembly 100, the second direction is a length extension direction of the frame assembly 100, and the third direction is a width extension direction of the frame assembly 100. The first frame 110 is located below the second frame 120 in the first direction.
[0037] In some embodiments, the side wall of the frame assembly 100 is penetrated by through holes, and the through holes include a first through hole 101, a second through hole 102 and a third through hole 103. The through holes are used to penetrate the first positioning mechanism 200 and the second positioning mechanism 300 so that the first positioning mechanism 200 and the second positioning mechanism 300 cooperate to achieve the positioning of the battery stack.
[0038] In some embodiments, the first through hole 101 can be configured as an internal threaded hole for threaded connection with a bolt; the second through hole 102 can be configured as a circular hole, and the bolt can move freely in the second through hole 102; the third through hole 103 can be configured as a rectangular opening that penetrates the side wall of the rack assembly 100 in the second direction, and when the bolt penetrates the third through hole 103 in the second direction, the bolt can move in the second direction and the third direction.
[0039] It should be separately explained that the inner diameter of the second through hole 102 is larger than the inner diameter of the bolt and smaller than the outer diameter of the nut that cooperates with the bolt; the opening length of the third through hole 103 in the second direction is larger than the inner diameter of the bolt and smaller than the outer diameter of the nut that cooperates with the bolt, so as to ensure that the bolt can move in the inward and outward directions of the frame assembly 100.
[0040] In some embodiments, the first positioning mechanism 200 is disposed through the frame assembly 100 to position the battery stack pin. The first positioning mechanism 200 includes a support member 220, and a positioning hole 202 is disposed through the surface of the support member 220 to position the battery stack. Figure 2 As shown, the support member 220 is roughly constructed as a rectangular structure, including a first push plate and a second push plate. The first push plate and the second push plate can be arranged in parallel in the third direction, or in parallel in the second direction, for adjusting the position of the positioning hole 202 with the assistance of the first positioning mechanism 200.
[0041] In some embodiments, a positioning hole 202 is provided between the first push plate and the second push plate, and the pore of the positioning hole 202 can extend along the first direction. It should be separately explained that the pore extension direction of the positioning hole 202 can not only extend along the first direction, but also can change the pore direction of the positioning hole 202 according to the needs of actual production and processing, so that the battery stack positioning device meets the needs of different types of battery stacks.
[0042] In some embodiments, the support member 220 may be provided with connecting holes 203 on both side surfaces in the second direction, and the support member 220 may be provided with first countersunk holes 201 on both side surfaces in the third direction for connecting bolts, and adjusting the position of the support member 220 in the second direction under the pushing action of the bolts to adapt to various battery stacks with positioning pins in different positions.
[0043] In some embodiments, the first positioning mechanism 200 shown also includes a first bolt assembly 210, which penetrates the side walls of the first frame 110 and the second frame 120 in the second direction or the third direction, so that the support member 220 can move in the second direction or the third direction inside the first frame 110, and is used to adjust the distance between the support member 220 and the side wall of the first frame 110 to change the position of the positioning hole 202, so that the battery stack positioning device provided by the present disclosure can be suitable for different types of battery stacks.
[0044] In some embodiments, the first bolt assembly 210 includes a first bolt 211 and a second bolt 212, which penetrate the side walls of the first frame 110 and the second frame 120 in pairs and are connected to the first countersunk hole 201 of the support member 220 to adjust the distance between the support member 220 and the side wall of the first frame 110.
[0045] The first bolt 211 is penetrated through the first through hole 101 and is threadedly connected to the first through hole 101; the second bolt 212 penetrates the second through hole 102 and can move freely in the second through hole 102, and at least one nut is sleeved on the outer side of the second bolt 212, and the nut is threadedly connected to the second bolt 212, and is used to tighten the second bolt 212 so that the second bolt 212 and the frame assembly 100 maintain a relatively fixed position, thereby adjusting the length of the second bolt 212 exposed outside the second frame 120.
[0046] In some embodiments, two nuts are sleeved on the outer side of the second bolt 212, and the two nuts are respectively arranged on the inner and outer sides of the side wall of the second frame 120 to clamp the second frame 120, and are used to tighten the second bolt 212, so that the second bolt 212 and the frame assembly 100 maintain a relatively fixed position, and then adjust the length of the second bolt 212 exposed outside the second frame 120.
[0047] In some embodiments, the second bolt 212 passes through the third through hole 103 and is connected to the support member 220. Specifically, the second bolt 212 passes through the third through hole 103 and is connected to the connecting hole 203 of the support member 220 to drive the connecting member to move in the second direction and the third direction.
[0048] In some embodiments, the second positioning mechanism 300 is disposed through the second frame 120 to clamp the stack end plate. In the first direction, the second positioning mechanism 300 is located above the first positioning mechanism 200 to clamp the stack end plate after the positioning pins of the stack are accurately positioned, thereby further realizing the stacking positioning of the stack.
[0049] In some embodiments, the second positioning mechanism 300 includes a limiting plate 320 , and a plurality of limiting plates 320 may be provided, which are arranged around the inner wall of the second frame 120 .
[0050] like Figure 2 As shown, the limit plate 320 can be constructed as a rectangular structural member, which is arranged on the inner side of the side wall of the second frame 120. The limit plate 320 can move in the second direction or the third direction to adjust the distance between the limit plate 320 and the side wall of the second frame 120 to adapt to different models of fuel cells.
[0051] It should be noted that the present disclosure does not limit the shape of the limiting plate 320 , and the limiting plate 320 may be a rectangular structural member, a polygonal structural member, or any other shape structural member that can match the battery stack.
[0052] In some embodiments, a second countersunk hole 302 is provided on a side surface of the limiting plate 320 facing the inner wall of the second frame 120 , for connecting with bolts to adjust the distance between the limiting plate 320 and the inner wall of the second frame 120 .
[0053] In some embodiments, the second positioning mechanism 300 shown also includes a second bolt assembly 310, which penetrates the side wall of the second frame 120 in the second direction or the third direction and is connected to the limit plate 320, so that the limit plate 320 can move in the second direction or the third direction inside the second frame 120, and is used to adjust the distance between the limit plate 320 and the side wall of the second frame 120 to adapt to different types of fuel cell stacks.
[0054] In some embodiments, the second bolt assembly 310 includes a third bolt 311 and a fourth bolt 312, and the third bolt 311 and the fourth bolt 312 penetrate the side wall of the second frame 120 in pairs, and are connected to the limiting plate 320 through the second countersunk hole 302 of the limiting plate 320, so as to adjust the distance between the limiting plate 320 and the side wall of the second frame 120.
[0055] The third bolt 311 is penetrated through the first through hole 101 and is threadedly connected to the first through hole 101; the fourth bolt 312 penetrates the second through hole 102 and can move freely in the second through hole 102, and at least one nut is sleeved on the outer side of the fourth bolt 312, and the nut is threadedly connected to the fourth bolt 312, and is used to tighten the fourth bolt 312 so that the fourth bolt 312 and the frame assembly 100 maintain a relatively fixed position, thereby adjusting the length of the fourth bolt 312 exposed outside the second frame 120.
[0056] In some embodiments, two nuts are sleeved on the outer side of the fourth bolt 312 , and the two nuts are respectively arranged on both sides of the side wall of the second frame 120 for tightening the fourth bolt 312 to keep the fourth bolt 312 and the second frame 120 in a relatively fixed position.
[0057] The application method of the stack positioning of the battery stack provided in the present disclosure is as follows: first, the second bolt 212 and the nut on the fourth are adjusted to one end away from the support member 220 or the limit plate 320 to ensure the maximum adjustable space of the bolt. Further, the battery stack is placed in the frame assembly 100, and the first positioning mechanism 200 is adjusted so that the battery stack positioning pin is accurately positioned with the positioning hole 202 of the support member 220, and the first bolt assembly 210 is tightened.
[0058] After confirming that the position of the stack positioning pin is accurate, the second positioning mechanism 300 is adjusted to allow the limit plate 320 to clamp the stack end plate, and the second bolt assembly 310 is further adjusted to lock the stack end plate.
[0059] Among them, since the second bolt 212 and the fourth bolt 312 have no external threads on the outside, they can move freely in the inward and outward directions of the frame assembly 100. Therefore, during the positioning and installation of the battery stack, the second bolt 212 and the fourth bolt 312 can be pushed first to ensure that the battery stack positioning pin or the battery stack end plate remains in the preset positioning position, and then the nut is rotated to keep the second bolt 212 and the fourth bolt 312 in the preset positioning position. Further, the first bolt 211 and the third bolt 311 are adjusted to ensure that the battery stack is positioned accurately and stably.
[0060] In some embodiments, a buffer layer is disposed on a side of the limiting plate 320 away from the side wall of the rack assembly 100 .
[0061] In actual operation, if the second bolt assembly 310 is over-tightened, the limiting plate 320 may exert excessive pressure on the battery stack, which may easily damage the battery stack.
[0062] Therefore, in order to prevent the above situation from happening, a buffer layer is provided on the side of the limiting plate 320 away from the side wall of the second frame 120. The buffer layer can more effectively protect the battery stack and relieve the pressure of the second bolt assembly 310 on the battery stack.
[0063] It should be noted that the buffer layer may be a sponge layer or a rubber pad, or may be any structure made of a flexible material in the art and having a buffering function.
[0064] The specific structure, working principle and beneficial effects of the battery stack positioning device provided in the embodiments of the present disclosure may refer to the battery stack positioning device described in any of the above embodiments, and will not be elaborated here.
[0065] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the system or device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.
[0066] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present disclosure.
Claims
1. A stack positioning device, characterized in that: include: A rack assembly, wherein a through hole is provided through a side wall of the rack assembly; A first positioning mechanism is disposed through the frame assembly and is used to position the battery stack; A second positioning mechanism is located above the first positioning mechanism in the first direction and is used to clamp the battery stack. Wherein, the first direction is the thickness direction of the frame assembly.
2. The battery stack positioning device according to claim 1, characterized in that: The first positioning mechanism comprises: A support member is arranged inside the frame assembly, and a positioning hole is penetrated through the surface of the support member for positioning the fuel cell stack.
3. The battery stack positioning device according to claim 2, characterized in that: The first positioning mechanism also includes: The first bolt assembly passes through the through hole and is connected to the support member, and is used to move in the second direction or the third direction to adjust the distance between the support member and the inner side wall of the frame assembly.
4. The battery stack positioning device according to claim 3, characterized in that: The first direction, the second direction, and the third direction are perpendicular to each other.
5. The battery stack positioning device according to claim 3, characterized in that: The second positioning mechanism comprises: The limiting plate is arranged inside the frame assembly and is used for clamping the end plate of the fuel cell stack.
6. The battery stack positioning device according to claim 5, characterized in that: The second positioning mechanism also includes: The second bolt assembly passes through the through hole and is connected to the limiting plate, and is used to move in the second direction or the third direction to adjust the distance between the limiting plate and the side wall of the rack assembly.
7. The battery stack positioning device according to claim 5, characterized in that: The frame assembly comprises: A first frame, wherein the first frame is hollow inside and is used to connect the support member; The second frame is sleeved outside the first frame and is used to connect the support member and the limiting plate.
8. The battery stack positioning device according to claim 6, characterized in that: The through holes include a first through hole, a second through hole and a third through hole, wherein the first through hole is an internal threaded hole.
9. The battery stack positioning device according to claim 8, characterized in that: The first bolt assembly comprises: A first bolt, used for threaded connection with the first through hole; A second bolt, wherein at least one nut is sleeved on an outer side of the second bolt, and the nut is used to tighten the second bolt to clamp the frame assembly.
10. The battery stack positioning device according to claim 5, characterized in that: A buffer layer is arranged on one side of the limiting plate away from the side wall of the frame assembly.