Supporting tool for testing lithium ion battery
By designing the brackets and brackets, the problem that CT testing instruments cannot effectively fix the lithium-ion battery is solved, and the effect of quickly finding the test area and improving the test efficiency is achieved. It is suitable for a variety of battery structures.
Patent Information
- Application Number
- CN202420244029.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The existing CT testing instruments cannot effectively fix the battery when testing lithium-ion batteries, resulting in inefficient testing. A tray that can quickly find the test area of the battery to be tested to shorten the adjustment time.
A bracket is designed including a bracket and a bracket. The bracket consists of a left support member and a right support member. The angle formed by the support surface is less than 180°. The bracket consists of a left groove and a right groove, which is suitable for Lithium-ion batteries of different structures provide a stable fixing method and optional base and shaft for improved stability and flexibility.
Through this tray, the lithium-ion battery can be fastened, the adjustment time is shortened, and the testing efficiency is improved. It is suitable for batteries of different structures, meets a variety of test needs, and provides stable and flexible support during the testing process.
Smart Images
Figure CN222259528U_ABST
Abstract
Description
Technical Field
[0001] The utility model mainly relates to the technical field of battery testing devices, in particular to a bracket used for lithium ion battery testing. Background Art
[0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on lithium ions (Li + ) moves between the positive and negative electrodes to work. During the charge and discharge process, Li + Insertion and deinsertion are repeated between the two electrodes. If Li + It is deintercalated from the positive electrode and then embedded into the negative electrode through the electrolyte. The negative electrode is in a lithium-rich state. On the contrary, Li + The electrolyte is then embedded in the positive electrode after being deintercalated from the negative electrode, and the positive electrode is in a lithium-rich state. The reason why lithium-ion batteries have attracted so much attention is mainly due to their high energy density, which can achieve higher battery life under the same battery volume. Among the mainstream battery types, lithium-ion batteries have a higher advantage in terms of energy density.
[0003] CT (Computed Tomography) testing can detect the internal structure of the battery without damaging the lithium-ion battery, and has become one of the important technical means of battery failure analysis. More and more new energy companies use CT testing instruments to observe the changes in the internal structure of the battery in different cycles, electrode wrinkles, etc. Since the CT testing instrument is only equipped with a tray, it cannot fix the lithium-ion battery well during the test, and the temporary fixing method will seriously affect the CT test efficiency. Therefore, how to fix the test battery to save time and improve the CT test efficiency is an urgent problem to be solved. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a support for lithium-ion battery testing, which effectively stabilizes the battery to be tested so as to quickly find the test area of the battery to be tested during the test, shorten the time for adjusting the battery to be tested, and improve the test efficiency.
[0005] In order to solve the above technical problems, the utility model provides a bracket for testing lithium-ion batteries, comprising: a bracket, the bracket comprising a left support member and a right support member, the left support member is fixedly connected to the right support member, and the angle formed by the support surface of the left support member and the support surface of the right support member is less than 180°; a bracket, the bracket is located in the bracket, and the bracket consists of a left groove located in the left support member and a right groove located in the right support member.
[0006] Optionally, an angle formed by a support surface of the left support member and a support surface of the right support member is a right angle.
[0007] Optionally, the height of the left support member is 55 mm to 65 mm, and the height of the right support member is 90 mm to 100 mm.
[0008] Optionally, the bracket has a width of 70 mm to 75 mm and a depth of 10 mm to 15 mm.
[0009] Optionally, a base is also included; the base is located below the bracket and connected to the bracket.
[0010] Optionally, the base has a length of 287 mm to 292 mm and a height of 68 mm to 73 mm.
[0011] Optionally, the bracket is an integrally formed bracket.
[0012] Optionally, the bracket is made of expanded polystyrene.
[0013] Optionally, a rotating shaft is disposed at the lower portion of the bracket, and a slot is disposed at the upper portion of the base, and the rotating shaft is placed in the slot.
[0014] Optionally, a bearing is fixed in the slot, and the rotating shaft is fixed to the inner ring of the bearing.
[0015] Compared with the prior art, the utility model has the following advantages: a bracket and a bracket are provided, the bracket includes a left support member and a right support member, the left support member is fixedly connected to the right support member, and the angle formed by the support surface of the left support member and the support surface of the right support member is less than 180°, the bracket is located in the bracket, and the bracket is composed of a left groove located in the left support member and a right groove located in the right support member, so that the battery to be tested can be quickly stabilized on the bracket, and the tested part of the battery to be tested can be placed in the center of the bracket, so that the test area can be quickly found during the test, and the sample adjustment time can be shortened to meet the test requirements of batteries with different structures. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present application. In the accompanying drawings:
[0017] Figure 1 It is a structural schematic diagram of a bracket for testing lithium-ion batteries according to an embodiment of the utility model;
[0018] Figure 2 yes Figure 1 A front view of the middle bracket;
[0019] Figure 3 yes Figure 2 Side view of the middle bracket;
[0020] Figure 4 This is a schematic diagram of the structure of a bracket for testing lithium-ion batteries according to another embodiment of the present invention. Figure 1 ;
[0021] Figure 5 This is a schematic diagram of the structure of a bracket for testing lithium-ion batteries according to another embodiment of the present invention. Figure 2 ;
[0022] Figure 6 The utility model is a schematic diagram of the use of the bracket for lithium-ion battery testing.
[0023] The symbols in the figure are:
[0024] 10- support;
[0025] 110- bracket; 111- left support member, 112- right support member, 113- rotating shaft;
[0026] 120-bracket; 121-left groove, 122-right groove.
[0027] 130-base; 131-bearing;
[0028] 20-Lithium-ion battery. DETAILED DESCRIPTION
[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.
[0030] Unless otherwise specifically stated, the relative arrangement of the components and steps, numerical expressions and numerical values described in these embodiments do not limit the scope of the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In the description of this application, it is necessary to understand that the orientation or position relationship indicated by the orientation words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description. In the absence of contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the scope of protection of this application; the orientation words "inside and outside" refer to the inside and outside of the contours of each component itself.
[0031] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0032] Embodiment 1
[0033] Figure 1 This is a schematic diagram of the structure of a bracket for testing lithium-ion batteries according to an embodiment of the utility model. Figure 2 yes Figure 1 Front view of the middle bracket, Figure 3 yes Figure 2 Side view of the middle bracket, see Figure 1 to Figure 3As shown, the structure of the bracket 10 of this embodiment includes a bracket 110 and a bracket 120, wherein the bracket 110 includes a left support member 111 and a right support member 112, the left support member 111 is fixedly connected to the right support member 112, and the angle formed by the supporting surface of the left support member 111 and the supporting surface of the right support member 112 is less than 180°; the bracket 120 is located in the bracket 110, and the bracket 120 is composed of a left groove 121 located in the left support member 111 and a right groove 122 located in the right support member 112.
[0034] In order to meet the requirements of lithium-ion battery testing, especially CT testing requirements, so that the testing process can proceed smoothly, this embodiment designs a new type of bracket 10. As mentioned above, the bracket 10 has a bracket 120. When the bracket 10 is used, the lithium-ion battery to be tested for CT is placed in the bracket 120 of the bracket 10. In addition, in most cases, the size of the bracket 120 (mainly the width) is the same as the size of the lithium-ion battery (mainly the width) or the size of the bracket 120 is slightly larger than the size of the lithium-ion battery, ensuring that the lithium-ion battery can be placed in the bracket 120. It can be seen that because the bracket 120 has a limiting effect on the battery in space, the lithium-ion battery can be stably placed on the bracket 10. In this way, the test area of the battery to be tested can be quickly found during the battery test, shortening the time for adjusting the battery to be tested.
[0035] In one example, the angle formed by the support surface of the left support member 111 and the support surface of the right support member 112 is a right angle, which meets the testing requirements of square shell (square structure) lithium-ion batteries.
[0036] refer to Figure 2 As shown, the support surface F1 of the left support member 111 and the support surface F2 of the right support member 112, then the angle formed by F1 and F1 is α. When α is a right angle, that is, α=90°, the angle of the bracket 120 is best matched with the square structure battery, and the space restriction of the lithium-ion battery is more effective, which can prevent the lithium-ion battery from moving or shaking.
[0037] In one example, the height a of the left support member 111 is 55 mm to 65 mm, preferably 60 mm, and the height b of the right support member 112 is 90 mm to 100 mm, preferably 95 mm. This structure can be adapted to most lithium-ion battery sizes so as to better support both sides of the lithium-ion battery, so that the bracket 10 has a better stability effect during the test process.
[0038] In one example, the width c of the bracket 120 is 70 mm to 75 mm, preferably 71.5 mm, and the depth d is 10 mm to 15 mm, preferably 10 mm. This structure can be applied to most lithium-ion battery sizes to prevent the lithium-ion battery from shaking during the test, causing unclear CT test patterns and affecting the test results.
[0039] In one example, the bracket 10 further includes a base 130 , which is connected below the bracket 110 .
[0040] In this embodiment, the base 130 is also provided based on the requirement of stabilizing the lithium-ion battery. Compared with the bracket 10 without the base 130, the bracket 10 with the base 130 has the advantages that, on the one hand, the weight of the entire bracket 10 is increased, and the bracket 10 is not easy to shake; on the other hand, the projection area of the base 130 is larger than the projection area of the bracket 110, so that the bracket 10 has a larger support surface, further improving the stabilization effect of the bracket 10 on the lithium-ion battery.
[0041] In one example, the length e of the base 130 is 287 mm to 292 mm, preferably 288.8 mm, and the height f is 68 mm to 73 mm, preferably 70 mm. The base 130 is shorter than a general CT test tray, and can fix the lithium-ion battery to be tested inside the bracket 10 to prevent the bracket 10 from hitting the ray tube generator and other instruments during rotation. There is no special requirement for the width g of the base 130, as long as it can better support the bracket 110, and the width g can generally be selected to be 143 mm.
[0042] In one example, the bracket 10 is an integrally formed bracket. The bracket 10 manufactured in an integrally formed manner has more stable quality, better consistency, and can save manufacturing costs.
[0043] In one example, the material of the bracket 10 is expandable polystyrene (EPS), especially high-density EPS material. The density of this material is much lower than the density of the lithium-ion battery to be tested, and will not affect the test result of the lithium-ion battery.
[0044] When using the bracket 10 of this embodiment, first fix the bracket 10 on the CT test tray, align the center of the bracket 10 with the center of the test tray, then place the lithium-ion battery to be tested in the bracket 120 of the bracket 10, and place one corner of the lithium-ion battery (such as the right angle of the square shell battery) at the angle of the bracket 120, and finally put the CT test tray with the lithium-ion battery into the test instrument for testing. Figure 6 shown.
[0045] The bracket 10 for lithium-ion battery testing provided in this embodiment is provided with a bracket 110 and a bracket 120, the bracket 110 includes a left support member 111 and a right support member 112, the left support member 111 is fixedly connected to the right support member 112, and the angle formed by the support surface of the left support member 111 and the support surface of the right support member 112 is less than 180°, the bracket 120 is located in the bracket 110, and the bracket 120 is composed of a left groove 121 located in the left support member 111 and a right groove 122 located in the right support member 112, so that the battery to be tested can be quickly fixed on the bracket 10, and the battery to be tested can be effectively stabilized, so that the test area of the battery to be tested can be quickly found during the test, and the time for adjusting the battery to be tested can be shortened to meet the test requirements of batteries with different structures.
[0046] Embodiment 2
[0047] Figure 4 This is a schematic diagram of the structure of a support for lithium-ion battery testing according to another embodiment of the present invention. Figure 4 As shown, the structure of the bracket 10 of this embodiment includes a bracket 110 and a bracket 120, wherein the bracket 110 includes a left support member 111 and a right support member 112, the left support member 111 is fixedly connected to the right support member 112, and the angle formed by the support surface of the left support member 111 and the support surface of the right support member 112 is less than 180°; the bracket 120 is located in the bracket 110, and the bracket 120 is composed of a left groove 121 located in the left support member 111 and a right groove 122 located in the right support member 112; a rotating shaft 113 is provided at the lower part of the bracket 110, and a slot is provided at the upper part of the base 130, and the rotating shaft 113 is placed in the slot.
[0048] In this embodiment, the bracket 110 and the base 130 are not fixedly connected, and the rotating shaft 113 cooperates with the slotted structure to achieve the effect of the bracket 110 rotating around the rotating shaft 113 on the base 130. The above structure is often used in the scene where the lithium-ion battery to be tested needs to be rotated during the test process. Only the upper bracket 110 can be rotated without rotating the entire bracket 10, which is more labor-saving and efficient.
[0049] In one example, a bearing 131 is fixed in the slot, and the rotating shaft 113 is fixed to the inner ring of the bearing 131 .
[0050] refer to Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of a bracket for testing lithium-ion batteries according to another embodiment of the present invention. Figure 2 A bearing 131 is arranged in the slot, and the rotation process of the bracket 110 is smoother through the cooperation of the rotating shaft 113 and the bearing 131, thereby further improving the rotation efficiency of the bracket 110.
[0051] When using the bracket 10 of this embodiment, first fix the bracket 10 on the CT test tray, align the center of the bracket 10 with the center of the test tray, then place the lithium-ion battery to be tested in the bracket 120 of the bracket 10, and place one corner of the lithium-ion battery (such as the right angle of the square shell battery) at the angle of the bracket 120, and finally put the CT test tray with the lithium-ion battery into the test instrument for testing. During the test process or other situations where it is necessary to rotate the lithium-ion battery to be tested, the bracket 110 can be directly rotated.
[0052] The bracket 10 for lithium-ion battery testing provided in this embodiment is provided with a bracket 110 and a bracket 120. The bracket 110 includes a left support member 111 and a right support member 112. The left support member 111 is fixedly connected to the right support member 112, and the angle formed by the support surface of the left support member 111 and the support surface of the right support member 112 is less than 180°. The bracket 120 is located in the bracket 110, and the bracket 120 is composed of a left groove 121 located in the left support member 111 and a right groove 122 located in the right support member 112. At the same time, a rotating shaft 113 is provided at the lower part of the bracket 110, and a groove is provided at the upper part of the base 130. The rotating shaft 113 is placed in the groove, which can not only enable the bracket 10 to better stabilize the lithium-ion battery, but also enable the lithium-ion battery to rotate efficiently, thereby meeting more battery testing requirements.
[0053] The basic concepts have been described above. Obviously, for those skilled in the art, the above utility model disclosure is only an example and does not constitute a limitation of the present application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and amendments to the present application.
[0054] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.
[0055] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more utility model embodiments, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, drawing or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.
[0056] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.
Claims
1. A support for lithium-ion battery testing, characterized in that: include: A bracket (110), the bracket (110) comprising a left support member (111) and a right support member (112), the left support member (111) being fixedly connected to the right support member (112), and an angle formed by a support surface of the left support member (111) and a support surface of the right support member (112) being less than 180°; A bracket (120), wherein the bracket (120) is located in the bracket seat (110), and the bracket (120) is composed of a left groove (121) located in the left support member (111) and a right groove (122) located in the right support member (112).
2. The support for lithium-ion battery testing according to claim 1, characterized in that: The angle formed by the support surface of the left support member (111) and the support surface of the right support member (112) is a right angle.
3. The support for lithium-ion battery testing according to claim 1, characterized in that: The height of the left support member (111) is 55 mm to 65 mm, and the height of the right support member (112) is 90 mm to 100 mm.
4. The support for lithium-ion battery testing according to claim 1, characterized in that: The bracket (120) has a width of 70 mm to 75 mm and a depth of 10 mm to 15 mm.
5. The holder for lithium-ion battery testing according to claim 1, characterized in that: It also includes a base (130); the base (130) is connected below the bracket (110).
6. The holder for lithium-ion battery testing as claimed in claim 5, characterized in that: The base (130) has a length of 287 mm to 292 mm and a height of 68 mm to 73 mm.
7. The support for lithium-ion battery testing according to any one of claims 1 to 6, characterized in that: The bracket (10) is an integrally formed bracket.
8. The support for lithium-ion battery testing according to any one of claims 1 to 6, characterized in that: The material of the bracket (10) is expanded polystyrene.
9. The holder for lithium-ion battery testing as claimed in claim 5, characterized in that: The lower part of the bracket (110) is provided with a rotating shaft (113), the upper part of the base (130) has a slot, and the rotating shaft (113) is placed in the slot.
10. The holder for lithium-ion battery testing according to claim 9, characterized in that: A bearing (131) is fixed in the slot, and the rotating shaft (113) is fixed to the inner ring of the bearing (131).