Melt structure capable of enhancing vibration resistance
By introducing hollow holes and anti-vibration frame structures into the melt structure of low-voltage fuses, the problem of melt fuses is solved, and stronger vibration resistance and lower cost are achieved.
Patent Information
- Application Number
- CN202422213380.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-10
AI Technical Summary
When the melt of existing low-voltage fuses faces vibration and impact in environments such as automobiles, it is easy to accidentally fuse due to the accumulation of mechanical stress, and bending processing will damage the neck and increase costs.
A melt structure that enhances vibration resistance is designed, including a melt body and an anti-vibration frame. The melt body has hollow holes along its length direction. The anti-vibration frame is arranged on the melt, including a pressure plate and a cross beam arranged in parallel, forming a frame-like structure to reduce vibration.
This structure does not require bending the melt, which significantly improves vibration resistance, reduces processing costs and defective rates, and maintains the current carrying value of the melt.
Smart Images
Figure CN223038888U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a melt, in particular to a melt structure with enhanced vibration resistance ability. Background Art
[0002] A low-voltage fuse is a circuit element that melts the melt by the heat generated by itself to disconnect the circuit when the current exceeds the specified value. Fuses are widely used in high- and low-voltage power distribution systems, control systems, and electrical equipment. As short-circuit and over-current protectors, they are one of the most commonly used protection components. The melt is an important part of the low-voltage fuse.
[0003] The melt of a low-voltage fuse generally reaches the required shape design through die stamping to form various variable cross-sections to meet the requirements of different voltage and current rating values. For low-voltage fuses used in new energy vehicle applications, due to the influence of the vehicle environment (such as road bumps), they will inevitably withstand various vibrations and impacts, which is a great test for the fragile necks of the melt. In the early days, new energy vehicles were mainly hybrid, with a general voltage not exceeding 450Vdc and a rated current of 200A. With the gradual popularization of high-voltage / large-current fast charging, the voltage of the new energy vehicle battery system has increased to 800Vdc or higher, and the rated current has also increased to 400A - 800A. The increase in voltage means that the fuse needs to be longer, and more rows of necks need to be arranged on the melt. For example, a 500Vdc fuse usually only requires three rows of necks, while an 800Vdc fuse requires at least four or five rows of necks.
[0004] To ensure safe interruption of high voltage, the neck of the melt is the weakest design, so it is also the place where mechanical stress is most concentrated, and it is easy to cause accidental fusing due to the accumulation of mechanical vibration stress during use. To improve the mechanical vibration resistance performance of the melt, bending processing is generally carried out between adjacent rows of necks, as Figure 1 shown. Although this method can effectively protect the melt, due to the small position of the neck of the melt, the neck will be damaged during the bending process, resulting in a high defective rate of the product. At the same time, the length of the melt will be increased invisibly during the bending process, which will also increase the cost and change the current-carrying value of the melt. Therefore, it is very necessary to improve the melt structure in the prior art to achieve the purpose of anti-vibration. Content of the Utility Model
[0005] The purpose of the utility model is to provide a melt structure with enhanced vibration resistance ability, which has the advantages of simple structure, reasonable design, and can enhance the anti-vibration ability of the melt without changing the current-carrying value and cost of the melt, and solves the problems raised in the above technical background.
[0006] To achieve the above object, the present utility model provides the following technical solution: A melt structure for enhancing vibration resistance, comprising a melt body and a vibration-resistant frame. The melt body is provided with a plurality of hollow holes along its length direction, and the plurality of hollow holes are arranged in an equidistant array on the melt body. A narrow neck is formed between two adjacent hollow holes. The vibration-resistant frame is arranged on the melt body and completely covers the hollow holes. The vibration-resistant frame includes a first pressing plate and a second pressing plate arranged in parallel. The first pressing plate and the second pressing plate are in contact connection with the melt body, and the first pressing plate and the second pressing plate are connected by two cross beams. The two cross beams are connected to the first pressing plate and the second pressing plate to form a frame structure.
[0007] Preferably, the thickness value of the melt body is between 0.05 mm and 0.5 mm, and the melt body is made of copper strip, silver strip or copper-silver composite strip.
[0008] Preferably, the width value of the narrow neck is between 0.05 mm and 5 mm.
[0009] Preferably, the vibration-resistant frame is made of glass fiber, PPS or ceramic material, and the height value of the vibration-resistant frame is between 1 mm and 5 mm.
[0010] Preferably, there is one vibration-resistant frame, and one vibration-resistant frame is located on the upper end face or the lower end face of the melt body.
[0011] Preferably, there are a plurality of vibration-resistant frames, and two adjacent vibration-resistant frames are fixedly connected or arranged at intervals on the upper end face or the lower end face or the upper end face and the lower end face of the melt body.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. The present utility model provides a melt structure for enhancing vibration resistance, which includes a melt body and a vibration-resistant frame. The vibration-resistant frame is arranged on the upper end face or the lower end face or the upper end face and the lower end face of the melt body. Without bending the melt body, the vibration resistance can be achieved, and at the same time, the processing cost can be saved and the product yield can be improved. The vibration-resistant frame includes a first pressing plate and a second pressing plate arranged in parallel. The first pressing plate and the second pressing plate are in contact connection with the melt body, and the first pressing plate and the second pressing plate are connected by two cross beams. The two cross beams are connected to the first pressing plate and the second pressing plate to form a frame structure. The melt is damped by the frame structure. Its overall structure is simple and reasonable in design. At the same time, different numbers of vibration-resistant frames can be selected according to the actual situation of the melt to meet the diverse use needs of users. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of a melt with vibration-resistant function in the prior art of the present utility model;
[0015] Figure 2 This is the structure diagram of the melt in the first embodiment of the present utility model;
[0016] Figure 3 This is the structure diagram of the melt body in the first embodiment of the present utility model;
[0017] Figure 4 This is the structure diagram of the anti-vibration frame in the first embodiment of the present utility model;
[0018] Figure 5 This is the structure diagram of the melt in the second embodiment of the present utility model;
[0019] Figure 6 This is the structure diagram of the melt in the third embodiment of the present utility model;
[0020] Figure 7 This is the structure diagram of the melt in the fourth embodiment of the present utility model;
[0021] Figure 8 This is the structure diagram of the melt in the fifth embodiment of the present utility model.
[0022] The reference numerals and names in the figure are as follows:
[0023] 1. Melt body; 11. Hollow hole; 12. Narrow neck; 2. Anti-vibration frame; 21. First pressing plate; 22. Second pressing plate; 23. Cross beam. Detailed implementation manners
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0026] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0027] Embodiment 1:
[0028] Please refer to Figures 2 to 4 , an embodiment provided by the present utility model: a melt structure for enhancing vibration resistance. The melt includes a melt body 1 and an anti-vibration frame 2. Among them, a plurality of hollow holes 11 are provided in the melt body 1 along its length direction. The plurality of hollow holes 11 are arranged in an equidistant array on the melt body 1. A narrow neck 12 is formed between two adjacent hollow holes 11. The width value of the narrow neck 12 is between 0.05 mm and 5 mm. The anti-vibration frame 2 is provided on the melt body 1 and completely covers the hollow holes 11. The anti-vibration frame 2 includes a first pressing plate 21 and a second pressing plate 22 arranged in parallel. The first pressing plate 21 and the second pressing plate 22 are in contact connection with the melt body 1. The first pressing plate 21 and the second pressing plate 22 are connected by two cross beams 23. The two cross beams 23 are connected to the first pressing plate 21 and the second pressing plate 22 to form a frame structure. The melt is damped through the frame structure. Its overall structure is simple and reasonable in design. At the same time, different numbers of anti-vibration frames 2 can be selected according to the actual situation of the melt to meet the diverse usage needs of users.
[0029] Specifically, the thickness value of the melt body 1 is between 0.05 mm and 0.5 mm, and the melt body 1 is made of a copper strip, a silver strip or a copper-silver composite strip.
[0030] Specifically, the anti-vibration frame 2 is made of glass fiber, PPS or ceramic material, and the height value of the anti-vibration frame 2 is between 1 mm and 5 mm.
[0031] Specifically, there is one anti-vibration frame 2, and one anti-vibration frame 2 is located on the upper end surface of the melt body 1.
[0032] Please refer to Figures 2 to 4 , by adopting the above technical solution, the anti-vibration frame 2 is used to replace the bent part on the melt body 1, which can simplify the processing technology of the melt body 1, save the manufacturing cost, and improve the yield of the product. At the same time, the anti-vibration frame 2 has a simple structure and stronger anti-vibration ability, and its application effect on new energy vehicle batteries is better, which is worthy of being vigorously promoted and applied.
[0033] Embodiment 2:
[0034] Please refer to Figure 5 , the second embodiment provided by the present utility model is basically the same as Embodiment 1, and the difference lies in that: there are two anti-vibration frames 2, and the two anti-vibration frames 2 are respectively arranged on the upper end surface and the lower end surface of the melt body 1. Other parts not explained in this embodiment are referred to Embodiment 1 and will not be elaborated here.
[0035] Embodiment 3:
[0036] Please refer to Figure 6 , the third embodiment provided by the present utility model is basically the same as Embodiment 1, and the difference lies in that: there are multiple anti-vibration frames 2, and the multiple anti-vibration frames 2 are arranged on the upper end surface of the melt body 1, and two adjacent anti-vibration frames 2 are fixedly connected as a whole. Other parts not explained in this embodiment are referred to Embodiment 1 and will not be elaborated here.
[0037] Embodiment 4:
[0038] Please refer to Figure 7 , the fourth embodiment provided by the present utility model is basically the same as Embodiment 1, and the difference lies in that: there are multiple anti-vibration frames 2, and the multiple anti-vibration frames 2 are arranged on the upper end surface and the lower end surface of the melt body 1, and two adjacent anti-vibration frames 2 are fixedly connected as a whole. Other parts not explained in this embodiment are referred to Embodiment 1 and will not be elaborated here.
[0039] Embodiment 5:
[0040] Please refer to Figure 8, the fifth embodiment provided by the present utility model is basically the same as Embodiment 1, except that: a plurality of vibration-resistant frames 2 are provided, and the plurality of vibration-resistant frames 2 are arranged on the upper end surface and the lower end surface of the melt body 1, and two adjacent vibration-resistant frames 2 are arranged at intervals. For other parts not explained in this embodiment, reference is made to Embodiment 1 and will not be elaborated here.
[0041] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A melt structure with enhanced vibration resistance, characterized in that: The invention comprises a melt body (1) and an anti-vibration frame (2), wherein the melt body (1) is provided with a plurality of hollow holes (11) along its length direction, the plurality of hollow holes (11) are distributed on the melt body (1) in an equidistant array, a narrow neck (12) is formed between two adjacent hollow holes (11), the anti-vibration frame (2) is arranged on the melt body (1) and completely covers the hollow holes (11), and the anti-vibration frame (2) comprises a first pressing plate (21) and a second pressing plate (22) arranged in parallel, the first pressing plate (21) and the second pressing plate (22) are in contact with and connected to the melt body (1), and the first pressing plate (21) and the second pressing plate (22) are connected via two cross beams (23), and the two cross beams (23) are connected to the first pressing plate (21) and the second pressing plate (22) to form a frame-like structure.
2. A melt structure with enhanced vibration resistance according to claim 1, characterized in that: The thickness of the melt body (1) is between 0.05 mm and 0.5 mm, and the melt body (1) is made of copper strip or silver strip or copper-silver composite strip.
3. The melt structure with enhanced vibration resistance according to claim 1, characterized in that: The width of the narrow neck (12) is between 0.05 mm and 5 mm.
4. The melt structure with enhanced vibration resistance according to claim 1, characterized in that: The anti-vibration frame (2) is made of glass fiber, PPS or ceramic material, and the height of the anti-vibration frame (2) is between 1 mm and 5 mm.
5. The melt structure with enhanced vibration resistance according to claim 1, characterized in that: The anti-vibration frame (2) is provided with one, and the anti-vibration frame (2) is located on the upper end surface or the lower end surface of the melt body (1).
6. The melt structure with enhanced vibration resistance according to claim 1, characterized in that: A plurality of anti-vibration frames (2) are provided, and two adjacent anti-vibration frames (2) are fixedly connected or spaced apart on the upper end surface or the lower end surface or the upper end surface and the lower end surface of the melt body (1).