Welding safety device

Abstract

The utility model discloses a welding safety device, which belongs to the technical field of fuses and comprises a fuse body and terminals connected to two ends of the fuse body, the terminals are parallel to the end face of the fuse body, and each terminal is provided with a welding face welded with a product to be provided with a fuse. Furthermore, an adaptive mortise and tenon structure assembly is arranged between one end of the terminal and a product to be provided with the fuse, and preferably, one end of the terminal is connected with a tenon. Compared with a fuse installed in a bolt mode, the fuse provided by the utility model can reduce the occupied space in the length direction; extra parts such as bolts are not needed, so that the material cost is reduced; meanwhile, the mortise and tenon structure assembly inserting structure is convenient to install, the quality control cost is low, and automatic installation is convenient to achieve; as long as plugging in place and welding reach the standard, the installation effect of the product must be good, and qualified products basically do not fail in advance, so that the safety and the reliability can be improved.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the technical field of fuse, concretely is a kind of welding safety device. BACKGROUND

[0002] The installation of commonly used vehicle gauge fuse is mostly bolt tightening type, and the fuse of bolt type product needs to occupy more length direction space, which is difficult to adapt in some equipment with limited installation space, such as the existing bolt type fuse shown in the attached Figure 1 The axial both ends of the fuse body are horizontally arranged with sheet terminals, and the terminals are provided with mounting holes, and the fuse is installed on the external product by using conductive bolts passing through the mounting holes, which requires a larger horizontal space.In addition, the contact surface between the sheet terminal and the fuse body is small, and under the same current channel, the heat dissipation is poor, which affects the service life and stability of the fuse.

[0003] Since the bolt type product needs to be fixed by conductive bolts, not only the material cost is increased, but also the requirements for the bolts are high, such as the roughness of the bolt, the flatness of the product, etc.There is a certain quality monitoring blind area in bolt tightening, and sometimes although the tightening torque reaches the standard, the tightening effect of the product is not good.

[0004] After the vehicle gauge fuse is applied to vehicle, the driving of the vehicle makes the application environment of the fuse dynamic, which leads to higher requirements for the installation stability of the fuse, and the ordinary bolt type product is difficult to meet the use demand, and during the long-term driving of the vehicle, looseness and falling off are easy to occur due to torque decay, which not only affects the service life and stability of the fuse, but also affects the safety of the vehicle.

[0005] In order to ensure high standard installation, the tightening process needs to be monitored during bolt tightening, the quality control cost is high, and the degree of automation assembly is high, the requirements for related operators or managers are also high, and it is difficult to realize automatic installation.

[0006] In view of the above problems, it is necessary to study a new installation method for the existing fuse, which can realize the installation of horizontal narrow space, improve the service life and stability of the fuse under the premise of ensuring installation and use stability. UTILITY MODEL CONTENTS

[0007] The utility model technical scheme provides a significantly different solution from the prior art, mainly provides a welding safety device, which replaces the traditional bolt connection with welding, is convenient for automatic installation, improves the service life and stability of the fuse, and in addition, the two side terminals are arranged on the two end faces of the fuse body, which can reduce the horizontal installation space and expand the application scenarios.

[0008] The utility model discloses a technical scheme that solves the above technical problems:

[0009] The utility model provides a kind of welding safety device, including fuse main body and the terminal connected to the both ends of fuse main body, the terminal parallelly adheres to the end face of fuse main body setting, the terminal has a welding surface, and the welding surface is used to be welded with the product of the fuse to be installed.

[0010] Further, the welding surface of the terminal is at least partially planar structure.

[0011] And / or, the welding surface and the fuse main body have a certain gap in the height direction.

[0012] Further, the terminal and the product to be installed fuse are connected by mortise and tenon structure assembly. The mortise and tenon structure can realize preliminary insertion positioning between the fuse terminal and the product to be installed fuse, and lay a good foundation for subsequent welding.

[0013] Preferably, the end of the terminal away from the fuse main body is provided with a tenon, and the product to be installed fuse is provided with a mortise hole matched with the tenon; and the end face of the tenon is the welding surface. It is convenient for parts processing and molding, and it is convenient for welding after mortise and tenon structure insertion.

[0014] Alternatively, the end of the terminal away from the fuse main body is provided with a mortise hole, and the product to be installed fuse is provided with a tenon matched with the mortise hole.

[0015] Preferably, the bottom of the fuse main body is at least partially planar structure.

[0016] Further, the longitudinal section of the fuse main body is a square or rectangular structure.

[0017] Further, the two end faces of the fuse main body and the terminal are connected by welding or bolt / screw.

[0018] Further, the side of the terminal away from the fuse main body is provided with a mounting plate in a pasting manner, and the screw passes through the mounting plate, the terminal and is fixedly connected with the fuse main body.

[0019] Further, the fuse main body is a cylindrical body with a circular end face or a cylindrical body with a rectangular end face. Compared with the circular cylindrical body, the area of the bottom surface of the rectangular cylindrical body near the cooling liquid after the fuse is installed is larger, which is beneficial to improve the heat dissipation effect.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] (1) The terminal of the utility model is parallel to the end surface of the fuse main body, and the end surface of the terminal is attached to the end surface of the fuse main body. Compared with the bolt mounting type fuse, the utility model changes the terminal perpendicular to the end surface of the fuse main body to parallel to the end surface, which can obviously reduce the transverse space occupation, thereby being suitable for the equipment with limited transverse installation space. Meanwhile, in the battery pack circuit breaking unit (BDU) application, the cooling liquid flows from below the fuse body to take away the heat generated by the fuse, prolongs the service life of the fuse, and can also increase the current carrying capacity of the fuse. In the utility model, the terminal is parallel to the end surface of the fuse main body, which can reduce the support height of the fuse body during installation, so that the fuse body is closer to the cooling liquid below, which is beneficial to improve the cooling effect.

[0022] (2) The terminal has a welding surface for welding with the product to be installed in the utility model, and when applied, the fuse is fixed by laser welding of the terminal, without additional bolts and other parts, thereby reducing the material cost. Meanwhile, compared with the bolt connection method, the welding process has realized full automation in the prior art, the quality control cost is lower, and the automatic installation of the fuse is facilitated.

[0023] (3) Compared with the bolt connection method, the quality monitoring of laser welding in the utility model is more convenient. As long as the welding is up to standard, the installation effect of the product is good. The fuse that meets the welding standard basically will not fail prematurely, thereby improving the safety and reliability.

[0024] (4) Compared with the bolt connection method, the attachment area of the terminal and the fuse main body in the utility model is greatly improved, so that the heat dissipation effect is better, which is beneficial to improve the use stability of the fuse and prolong the service life of the fuse.

[0025] In summary, the utility model can reduce the length space, reduce the cost, facilitate automatic installation, and improve the safety and reliability.

[0026] The utility model will be explained in detail in combination with the drawings and specific embodiments. DRAWINGS

[0027] Figure 1 It is a three-dimensional schematic view of the bolt type installed fuse product mentioned in the background technology of the utility model;

[0028] Figure 2 It is a three-dimensional structure schematic view in one embodiment of the utility model;

[0029] Figure 3 It is Figure 2 The front view of the product shown in the figure;

[0030] Figure 4 It isFigure 2 Schematic diagram of the installation and application structure of the product shown;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the third embodiment of the present invention.

[0033] Figure numerals: 1, fuse body; 2, terminal; 21, tenon; 3, mounting plate. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0035] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly used by technicians in the technical field of the present invention. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] This embodiment provides a welding safety device, such as Figures 2-6 As shown, it includes a fuse body 1 and terminals 2 connected to both ends of the fuse body 1. The terminals 2 are arranged parallel to the end surface of the fuse body 1, and the terminals 2 are connected to the fuse structure in the fuse body 1 by laser welding. The terminals 2 have a welding surface for welding to the product to be installed with the fuse (which can be a copper busbar, a structural part, etc.); preferably, the welding surface of the terminal is a plane.

[0038] In use, the terminal 2 is parallelly attached to the end face of the fuse body 1, and compared with the bolt-mounted fuse, the length direction space occupied can be obviously reduced, so that the equipment with limited installation space can be adapted. Moreover, the welding-mounted fuse has good stability during the use of the vehicle, and basically will not fail in advance, so that the safety and reliability can be improved.

[0039] In some embodiments, one end of the terminal 2 is provided with a tenon 21, and a mortise (the tenon 21 and the mortise constitute a mortise-and-tenon structure assembly) matched with the tenon 21 is formed on the product to be installed with the fuse; and the end face of the tenon 21 is a welding face, and the welding face has a certain gap with the fuse body 1 in the height direction.

[0040] In use, as shown in Figure 4 , the terminal 2 and the product to be installed with the fuse are connected through the mortise-and-tenon structure assembly, and then the two products are connected together through laser welding, so that the fixed installation of the fuse is completed. Such an installation mode has the following advantages:

[0041] (1) Since the terminal 2 is parallelly attached to the end face of the fuse body 1, the length direction space occupied can be reduced according to the utility model;

[0042] (2) The fuse is connected through the mortise-and-tenon structure assembly, and the installation is realized through cooperation of welding, so that the additional parts such as bolts are not needed, and the material cost is reduced;

[0043] (3) Compared with the bolt connection mode, the mortise-and-tenon structure assembly insertion structure and the laser welding installation are more convenient, the quality control cost is lower, and the automatic installation is facilitated; the requirements for the related operators or managers are also lower;

[0044] (4) Compared with the bolt connection mode, the quality monitoring of the mortise-and-tenon structure assembly insertion structure and the laser welding is more convenient, as long as the insertion is in place and the welding is up to standard, the installation effect of the product is good;

[0045] (5) The mortise-and-tenon structure assembly and the laser welding can realize the firm fixed installation of the fuse, based on the fourth point, the qualified product basically will not fail in advance, so that the safety and reliability can be improved.

[0046] In one embodiment, as shown in Figures 2-3 , the fuse body 1 is a column with a circular end face. In another embodiment, as shown in Figures 5-6 , the fuse body 1 is a column with a rectangular end face.

[0047] In one embodiment, as shown in Figure 2 , Figure 3 and Figure 5As shown, the terminal 2 is a plate-shaped structure, and one end of the terminal 2 extends perpendicular to the length direction of the fuse body 1 and is connected to a tenon 21. In another embodiment, as shown in FIG. Figure 6 As shown, the terminal 2 and the tenon 21 are integrally formed into a plate-like structure, and the terminal 2 is fixed to the end face of the fuse body 1. The thickness direction of the terminal 2 is located in the length direction of the fuse body 1, which can minimize the length direction space occupied.

[0048] In one embodiment, Figure 3 As shown, the width of the terminal 2 body is smaller than the width of the fuse body 1; the width of the tenon 21 is smaller than the width of the terminal 2, and the tenon 21 is connected to the middle of one side of the terminal 2. In another embodiment, as shown Figure 6 As shown, the width of the terminal 2 body is equal to the width of the fuse body 1 ; the width of the tenon 21 is equal to the width of the terminal 2 .

[0049] In one embodiment, Figure 5 As shown, the end face of the terminal 2 body is equal to the end face of the fuse body 1 in shape and size.

[0050] In one embodiment, the terminal 2 is directly welded to the fuse body 1. In another embodiment, as Figure 5 As shown, the terminal 2 is fixedly connected to the fuse body 1 by screws. In another embodiment, as shown in FIG. Figure 6 As shown, a mounting plate 3 is fitted on the side of the terminal 2 facing away from the fuse body 1 , and screws pass through the mounting plate 3 and the terminal 2 and are fixedly connected to the fuse body 1 , and the terminal 2 is clamped between the mounting plate 3 and the fuse body 1 .

[0051] The above description of the present invention is illustrative in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A welding safety device, comprising a fuse body (1) and terminals (2) connected to both ends of the fuse body (1), characterized in that: The terminal (2) is arranged parallel to and in contact with the end surface of the fuse body (1); the terminal (2) has a welding surface, and the welding surface is used for welding with a product to be installed with the fuse.

2. A welding safety device according to claim 1, characterized in that: The welding surface of the terminal (2) is at least partially a planar structure; And / or, there is a gap between the welding surface and the fuse body (1) in the height direction.

3. A welding safety device according to claim 1, characterized in that: The terminal (2) is connected to the product to be installed with the fuse via a mortise and tenon structural component.

4. A welding safety device according to claim 3, characterized in that: The end of the terminal (2) facing away from the fuse body (1) is provided with a tenon (21), a mortise adapted to the tenon (21) is provided on the product to be installed with the fuse, and the end face of the tenon (21) is a welding surface; Alternatively, the terminal (2) is provided with a mortise at the end facing away from the fuse body (1), and a tenon (21) adapted to the mortise is provided on the product to be installed with the fuse.

5. The welding safety device according to claim 1, characterized in that: At least part of the bottom of the fuse body (1) is a planar structure.

6. The welding safety device according to claim 1, characterized in that: The longitudinal section of the fuse body (1) is a square or rectangular structure.

7. The welding safety device according to claim 1, characterized in that: The two end faces of the fuse body (1) and the terminals (2) are connected by welding or bolts.

8. The welding safety device according to claim 7, characterized in that: A mounting plate (3) is fitted on the side of the terminal (2) facing away from the fuse body (1), and screws pass through the mounting plate (3) and the terminal (2) and are fixedly connected to the fuse body (1).

9. The welding safety device according to claim 1, characterized in that: The fuse body (1) is a column with a circular end face or a column with a rectangular end face.

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