A welding positioning device for a fuse or a circuit breaker

Abstract

The utility model discloses a welding positioning device for a fuse or a circuit breaker, including an upper shell, a conductive body assembly is arranged at the lower end of the upper shell, and the lower end of the conductive body assembly includes an upper shell, a conductive body assembly is arranged at the lower end of the upper shell, and a lower shell is arranged at the lower end of the conductive body assembly. The upper shell is a multi-stage truncated cone column structure, and the radius of the truncated cone decreases from bottom to top. The bottom of the upper shell is a circular flat plate, and the upper shell positioning holes are opened at both ends of the flat plate. The present application uses positioning columns and assemblies to replace the connection functions of rivets and screws, thereby achieving the advantages of fast welding speed, high efficiency, and good sealing, while reducing costs and achieving an environmentally friendly and pollution-free effect. In addition, the design of the welding groove not only increases the welding contact area, making the welding more firm, but also makes the welding surface more beautiful, and the different heights and sizes of the positioning columns can play an assembly error prevention function.

Description

Technical Field

[0001] The utility model relates to the technical field of welding positioning, in particular to a welding positioning device for a fuse or a circuit breaker. Background Art

[0002] With the rapid development and technological innovation of the new energy electric vehicle industry, ultrasonic welding technology has gradually demonstrated its strong application potential and value in many fields such as automobile manufacturing, medical equipment, and packaging. Especially in the manufacturing process of automotive parts, due to the increasing demand for lightweight, the weight reduction design of parts has received great attention. This not only helps to improve the energy efficiency and mileage of the car, but also improves the driving experience and reduces the overall cost of the vehicle.

[0003] As the indispensable key components in the battery management system of new energy electric vehicles, the quality and reliability of fuses and circuit breakers directly affect the safety and stability of the battery. Although traditional connection methods, such as the use of screws, nuts or rivets for connection, can achieve basic fixing functions, there are often some problems in actual use. For example, due to the misalignment of the hole position, it may be difficult to insert the screws or rivets, and even lead to assembly failure. In addition, for some surfaces that require precise matching, traditional connection methods may not meet the requirements, thus affecting the performance and safety of the entire vehicle.

[0004] The emergence of ultrasonic welding technology provides an effective solution to these problems. It uses the high-frequency vibration of ultrasound to quickly generate high temperatures on the welding surface and melt the plastic, thereby achieving a reliable connection. Due to the poor thermal conductivity of plastic, the heat can be concentrated in the welding area during the welding process, avoiding thermal damage to surrounding tissues. At the same time, ultrasonic welding can also achieve simultaneous connection of multiple locations, greatly improving assembly efficiency and accuracy.

[0005] However, although ultrasonic welding technology has shown excellent performance in the connection of single parts, there are still some technical challenges when dealing with the connection of two or more assemblies in multiple positions or the assembly of two or more parts. For example, when the hole position of the assembly is not correct, the ultrasonic welding head may not be able to accurately align the welding position, resulting in unstable welding quality. In addition, for some surfaces with complex shapes or high matching requirements, how to achieve accurate ultrasonic welding is also a problem that needs to be solved urgently. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model solves the problems in the prior art that the holes are not in the correct position, screws or rivets are not easy to insert, and the surfaces are not easy to match.

[0007] A welding positioning device for a fuse or a circuit breaker comprises an upper shell, a conductor assembly is arranged at the lower end of the upper shell, a lower shell is arranged at the lower end of the conductor assembly.

[0008] Furthermore, the upper shell body is a multi-stage truncated cone columnar structure, the radius of the truncated cone decreases gradually from bottom to top, and the bottom of the upper shell body is a circular flat plate with upper shell body positioning holes at both ends of the flat plate.

[0009] Furthermore, the lower shell body is a multi-stage truncated cone columnar structure, the radius of the truncated cone increases gradually from bottom to top, and the top of the lower shell body is a circular flat plate with lower shell body positioning holes at both ends of the flat plate.

[0010] Furthermore, it also includes a conductor assembly, the center of which is a circular flat plate, an upper shell positioning column is arranged at a position corresponding to the upper shell positioning hole of the conductor assembly, and a lower shell positioning column is arranged at a position corresponding to the lower shell positioning hole of the conductor assembly.

[0011] Furthermore, the upper shell positioning column and the lower shell positioning column are both cylindrical structures, and the length of the upper shell positioning column is equal to the depth of the upper shell positioning hole, and the length of the lower shell positioning column is equal to the depth of the lower shell positioning hole.

[0012] Furthermore, the length of the upper shell positioning column is not equal to the length of the lower shell positioning column.

[0013] Furthermore, an upper shell welding groove is provided at the upper end of the upper shell positioning hole, and a lower shell welding groove is provided at the lower end of the lower shell positioning hole.

[0014] Furthermore, the upper shell welding groove and the lower shell welding groove are conical chamfers.

[0015] Beneficial effects of the utility model: The present application uses positioning columns and fittings to replace the connection functions of rivets and screws, thereby achieving the advantages of fast welding speed, high efficiency, and good sealing, while reducing costs and achieving an environmentally friendly and pollution-free effect. In addition, the design of the welding groove not only increases the welding contact area, making the welding more solid, but also makes the welding surface more beautiful, and the different heights and sizes of the positioning columns can play an assembly error prevention function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the use of a welding positioning device for a fuse or a circuit breaker;

[0017] Figure 2 The present invention is a schematic diagram of the structure of a conductive body assembly of a welding positioning device for a fuse or a circuit breaker;

[0018] Figure 3The invention discloses a schematic diagram of the structure of the upper and lower shells of a welding positioning device for a fuse or a circuit breaker.

[0019] In the figure: 1-upper shell, 2-lower shell, 3-conductor assembly, 4-upper shell positioning column, 5-lower shell positioning column, 6-assembly positioning plate, 7-upper shell positioning hole, 8-lower shell positioning hole, 9-upper shell welding groove, 10-lower shell welding groove. DETAILED DESCRIPTION

[0020] The following is an explanation of the implementation of the present invention by specific specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to the implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present utility model. In order to provide a deep understanding of the present utility model, many specific details will be included in the following description. The present utility model can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present utility model, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. It should be noted that in this specification, similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "set", "connected", "connected" and the like 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances. The directions or positional relationships indicated by “upper”, “lower”, “left”, “right”, “inner”, “bottom”, etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0022] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] In this embodiment, as shown in the attached Figures 1 to 3 As shown, a welding positioning device for a fuse or a circuit breaker includes an upper shell 1, a conductive body assembly 3 is arranged at the lower end of the upper shell 1, and a lower shell 2 is arranged at the lower end of the conductive body assembly 3.

[0024] Furthermore, the upper shell 1 is a multi-stage truncated cone columnar structure, the radius of the truncated cone decreases from bottom to top, and the bottom of the upper shell 1 is a circular flat plate, and upper shell positioning holes 7 are opened at both ends of the flat plate.

[0025] Furthermore, the lower shell 2 is a multi-stage truncated cone columnar structure, the radius of the truncated cone increases gradually from bottom to top, the top of the lower shell 2 is a circular flat plate, and lower shell positioning holes 8 are opened at both ends of the flat plate.

[0026] Furthermore, it also includes a conductor assembly 3, the center of which is a circular flat plate, an upper shell positioning column 4 is arranged at the position where the conductor assembly 3 corresponds to the upper shell positioning hole 7, and a lower shell positioning column 4 is arranged at the position where the conductor assembly 3 corresponds to the lower shell positioning hole 7.

[0027] Furthermore, the upper shell positioning column 4 and the lower shell positioning column 5 are both cylindrical structures, and the length of the upper shell positioning column 4 is equal to the depth of the upper shell positioning hole 7, and the length of the lower shell positioning column 5 is equal to the depth of the lower shell positioning hole 8.

[0028] Furthermore, the length of the upper shell positioning column 4 is not equal to the length of the lower shell positioning column 5 .

[0029] Furthermore, an upper shell welding groove 9 is provided at the upper end of the upper shell positioning hole 7 , and a lower shell welding groove 10 is provided at the lower end of the lower shell positioning hole 8 .

[0030] Furthermore, the upper shell welding groove 9 and the lower shell welding groove 10 are conical chamfers.

[0031] Beneficial effects of the utility model: The present application uses positioning columns and fittings to replace the connection functions of rivets and screws, thereby achieving the advantages of fast welding speed, high efficiency and good sealing, while reducing costs and achieving environmental protection and pollution-free effects. In addition, the design of the welding groove not only increases the welding contact area, making the welding more firm, but also makes the welding surface more beautiful.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A welding positioning device for a fuse or a circuit breaker, characterized in that: It comprises an upper shell (1), a conductive body assembly (3) is arranged at the lower end of the upper shell (1), and a lower shell (2) is arranged at the lower end of the conductive body assembly (3); The upper shell (1) is a multi-step truncated cone columnar structure, the radius of the truncated cone gradually decreases from bottom to top, the bottom of the upper shell (1) is a circular flat plate, and upper shell positioning holes (7) are formed at both ends of the flat plate; The lower shell (2) is a multi-stage truncated cone columnar structure, the radius of the truncated cone increases from bottom to top, and the top of the lower shell (2) is a circular flat plate, with lower shell positioning holes (8) formed at both ends of the flat plate.

2. A welding positioning device for a fuse or circuit breaker according to claim 1, characterized in that: It also includes a conductor assembly (3), the center of the conductor assembly (3) is a circular flat plate, an upper shell positioning column (4) is arranged at a position corresponding to the conductor assembly (3) and the upper shell positioning hole (7), and a lower shell positioning column (5) is arranged at a position corresponding to the conductor assembly (3) and the lower shell positioning hole (8).

3. A welding positioning device for a fuse or a circuit breaker according to claim 2, characterized in that: The upper shell locating column (4) and the lower shell locating column (5) are both cylindrical structures, and the length of the upper shell locating column (4) is equal to the depth of the upper shell locating hole (7), and the length of the lower shell locating column (5) is equal to the depth of the lower shell locating hole (8).

4. A welding positioning device for a fuse or a circuit breaker according to claim 2, characterized in that: The length of the upper shell body positioning column (4) is not equal to the length of the lower shell body positioning column (5).

5. A welding positioning device for a fuse or a circuit breaker according to claim 1, characterized in that: The upper end of the upper shell positioning hole (7) is provided with an upper shell welding groove (9), and the lower end of the lower shell positioning hole (8) is provided with a lower shell welding groove (10).

6. A welding positioning device for a fuse or circuit breaker according to claim 5, characterized in that: The upper shell welding groove (9) and the lower shell welding groove (10) are conical chamfers.

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