Fuse welding tool

Abstract

The utility model discloses a fuse welding tool and discloses a fixing seat, the fixing seat is used for placing a fuse and a PCB (printed circuit board), two sides of the fuse are connected with pins used for being welded with the PCB, the fixing seat is further provided with conductive parts, one end of one conductive part is used for abutting against the pin on one side of the fuse, and the other end of the conductive part is used for abutting against the pin on the other side of the fuse. One end of one conductive part is used for abutting against a pin on one side of the fuse, one end of the other conductive part is used for abutting against a pin on the other side of the fuse, the ends, not abutting against the pin, of the two conductive parts are electrically connected with the conduction testing tool, and the part, located between the two conductive parts, of the fixing seat is provided with an insulating part or is made of an insulating material. According to the fuse welding tool, conduction testing can be completed on the tool in the welding process or after welding is completed, an independent detection procedure does not need to be newly added, the production procedure is simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling, in particular to a fuse welding tooling. Background Art

[0002] Fuses can sense overheating or excessive current generated by abnormal operation of electrical and electronic products, thereby cutting off the circuit to avoid fire. Before fuses are used in electronic products, they need to be welded to the PCB board. During the welding process, there may be factors such as incorrect operation and overheating that may cause the fuse to fail to conduct, making it unusable. Therefore, after welding is completed, it is often necessary to conduct a separate conduction test, which increases the production process, makes the process more complicated, and reduces production efficiency. Utility Model Content

[0003] The utility model proposes a fuse welding tool, which aims to solve the technical problem in the related art that a separate conduction test is required after fuse welding, and the process is cumbersome and inefficient. To achieve the above purpose, the technical solution of the utility model is as follows:

[0004] The fuse welding tool according to the first aspect of the present utility model comprises: a fixing seat, the fixing seat is used to fix the fuse and the PCB board, wherein pins are connected to both sides of the fuse, and the pins are used to be welded to the PCB board;

[0005] Conductive parts, there are two conductive parts, the two conductive parts are arranged on the fixing seat, one end of one of the conductive parts is used to abut against the pin on one side of the fuse, and one end of the other conductive part is used to abut against the pin on the other side of the fuse, and the ends of the two conductive parts that are not abutted against the pin are both electrically connected to the conduction test tool;

[0006] Wherein, the portion of the fixing seat located between the two conductive parts is provided with an insulating part, or the portion of the fixing seat located between the two conductive parts is made of insulating material.

[0007] According to some embodiments of the utility model, the fixing seat is provided with a bottom wall and at least two side walls, one of the two side walls is provided at one end of the bottom wall, and the other is provided at the other end of the bottom wall to enclose a positioning groove, and the positioning groove is used to fix the fuse and the pin.

[0008] According to some embodiments of the present invention, the two conductive parts are respectively disposed on the two side walls, and at least partially located in the positioning groove to abut against the pin.

[0009] According to some embodiments of the present invention, at least a portion of the side wall is made of a heat-conductive material, and the portion of the side wall made of the heat-conductive material is in contact with the fuse and the pin, and / or at least a portion of the bottom wall is made of a heat-conductive material, and the portion of the bottom wall made of the heat-conductive material is in contact with the fuse and the pin.

[0010] According to some embodiments of the present invention, the fixing seat further includes a coolant channel, and the wall surface of the coolant channel close to the fuse and the pin is made of heat-conducting material.

[0011] According to some embodiments of the present invention, a cooling liquid channel is provided in the side wall, and / or a cooling liquid channel is provided in the bottom wall.

[0012] According to some embodiments of the present invention, a groove is provided on the bottom wall, and the shape of the groove is adapted to the fuse.

[0013] According to some embodiments of the present invention, two ends of the conductive portion protrude from a side of the side wall close to the positioning groove to abut against the pin.

[0014] According to some embodiments of the present invention, the portion of the conductive portion protruding from the side wall is made of elastic material.

[0015] According to some embodiments of the present invention, a slot for abutting against the pin is provided on a portion of the conductive portion protruding from the side wall.

[0016] According to the fuse welding tool of the embodiment of the utility model, the fuse and the pin are fixedly placed on the fixing seat, so that the fuse is fixed in position for welding processing, thereby improving processing efficiency. At the same time, a conductive part is also provided to abut the pin, and the other end of the conductive part is connected with a continuity test tool, so that the continuity test can be directly completed on the tool using the continuity test tool while welding processing on the tool or after welding processing is completed, and fuses that are disconnected due to incorrect operation or overheating of welding are timely screened out, and it is no longer necessary to add an additional process to perform a separate continuity test, thereby simplifying the production process and improving production efficiency.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1It is a schematic diagram of an embodiment of the utility model;

[0020] Figure 2 It is a cross-sectional view of an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 100, fixing seat; 101, bottom wall; 102, side wall; 103, positioning groove; 104, groove; 105, cooling liquid channel;

[0023] 201, fuse; 202, pin; 203, PCB board;

[0024] 301, conductive part; 3011, protruding part; 302, continuity test tool; 303, insulating sheet; 304, wire. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] refer to Figure 1 Some embodiments of the utility model provide a fuse welding tool, including a fixing seat 100, the fixing seat 100 is used to fix and place a fuse 201 and a PCB board 203, wherein the two sides of the fuse 201 are respectively connected with pins 202, and the pins 202 are used to be welded with the PCB board 203. Two conductive parts 301 are arranged on the fixing seat 100, one end of one conductive part 301 is used to abut against the pin 202 on one side of the fuse 201, and one end of the other conductive part 301 is used to abut against the pin 202 on the other side of the fuse 201, and the ends of the two conductive parts 301 that are not abutted against the pin 202 are both electrically connected to the conduction test tool 302.

[0027] Through the above-mentioned setting, a test loop is formed between the conduction test tool 302, the conductive part 301, the pin 202, and the fuse 201. The producer can connect the conduction test tool 302 during the processing on the tooling or after the processing is completed. When the fuse 201 is disconnected due to incorrect operation or high temperature during processing, the conduction test tool 302 can detect it and display the result, thereby realizing the on-off test of the fuse 201 directly on the tooling to confirm whether the fuse 201 can be normally connected, without adding a separate conduction test process, simplifying the production process and improving production efficiency. At the same time, when the fixing seat 100 is a conductive material, the fixing seat 100 between the two conductive parts 301 will form another loop with the conduction test tool 302 and the conductive part 301, so that the fuse 201 and its pin 202 are short-circuited and cannot be tested to see whether they are disconnected. The setting of the insulating part 303 can prevent the fixing seat from being connected as a whole and affecting the test.

[0028] It is understandable that the insulating portion 303 may be arranged in different forms. For example, the portion of the fixing base 100 located between the two conductive portions 301 is made of insulating material.

[0029] It is understandable that the conduction test tool 302 can be of various types, such as a resistance meter, where the resistance value obtained by the test is infinite when the fuse 201 is disconnected. It can also be an ammeter, where the pin 202 of the fuse 201 is connected to a power source, and when the current value obtained by the test is 0, it indicates that the fuse 201 is disconnected. It is also possible to directly use a multimeter for testing.

[0030] In some embodiments of the present invention, the fixing base 100 is composed of a bottom wall 101 and at least two side walls 102. One end of the two side walls 102 is respectively connected to the two ends of the bottom wall 101 to enclose a "concave"-shaped positioning groove 103. When the manufacturer needs to process the fuse 201, the fuse 201 can be placed in the positioning groove 103 for fixing to facilitate further operation.

[0031] In some embodiments of the present invention, two conductive parts 301 are respectively disposed on the two side walls 102 and at least partially located in the positioning groove 103 for abutting against the pin 202 to complete the connection of the test circuit.

[0032] In some embodiments of the present invention, at least a portion of the side wall 102 is made of a thermally conductive material, and the portion of the side wall made of the thermally conductive material is in contact with the fuse 201 and the pin 202, and / or at least a portion of the bottom wall 101 is made of a thermally conductive material, and the portion of the bottom wall 101 made of the thermally conductive material is in contact with the fuse 201 and the pin 202.

[0033] During the processing of the fuse 201, the main reason for the disconnection of the fuse 201 is that the heat generated during the welding process of the pin 202 and the PCB board 203 is transferred to the fuse 201 through the pin 202, causing the fuse 201 to be overheated and melted. By arranging a heat-conducting material in at least a part of the fixing base 100, the fuse 201 or its pin 202 can transfer the heat to the fixing base 100 through the heat-conducting material and release it to the outside, thereby reducing the accumulation of heat generated by welding on the fuse 201 and avoiding melting.

[0034] It is understandable that the configuration of the heat-conducting material in this embodiment can be various, for example, a portion of one of the two side walls 102 is a heat-conducting material, or a portion of both side walls 102 is a heat-conducting material, or the entirety of at least one of the side walls 102 is a heat-conducting material. At the same time, the entirety or a portion of the bottom wall 101 can also be configured as a heat-conducting material.

[0035] In some embodiments of the present invention, the fixing base 100 further includes a coolant channel 105 inside, and the wall surface of the coolant channel 105 on one side close to the fuse 201 and the pin 202 is made of heat-conducting material.

[0036] refer to Figure 2 The coolant channel 105 can be disposed in the bottom wall 101 and accelerate the heat conduction of the bottom wall 101 .

[0037] In order to better achieve the heat conduction effect, the fixing base 100 also includes a coolant channel 105. The wall surface of the coolant channel 105 on one side close to the fuse 201 and the pin 202 is made of a heat-conducting material. Therefore, the coolant flows in the channel and promptly takes away the heat of the fuse 201 or the pin 202 conducted from the above-mentioned heat-conducting wall surface, so that the heat-conducting wall surface is quickly cooled down, and the heat conduction efficiency is accelerated, so that the fuse 201 or the pin 202 is quickly cooled down, and a better effect of avoiding melting is achieved.

[0038] It is understandable that the arrangement of the coolant channel 105 can be various. For example, a portion of the side wall 102 is provided with the coolant channel 105, or the entire side wall 102 is provided with the coolant channel 105, or a portion of the bottom wall 101 is provided with the coolant channel 105, or the entire bottom wall 101 is provided with the coolant channel 105, or even the side wall 102 and the bottom wall 101 are provided with the coolant channel 105, which is not limited here.

[0039] In some embodiments of the present invention, a groove 104 is provided on the bottom wall 101 , and the shape of the groove 104 is adapted to the fuse 201 .

[0040] Specifically, since the diameter of the fuse 201 is larger than that of the pin 202, if the fuse 201 is directly placed in the positioning groove 103, only the fuse 201 is in contact with the bottom wall 101 in the portion of the fuse 201 corresponding to the bottom wall 101, and the pins 202 on both sides parallel to the bottom wall 101 are suspended in the air. In this case, the fuse 201 is easy to shake in a direction perpendicular to the line connecting the two side walls 102, and the contact area between the fuse 201 and its pins 202 and the bottom wall 101 is reduced, which is not conducive to heat conduction. Figure 1-2 On the side of the bottom wall 101 facing the positioning groove 103, a groove 104 is provided corresponding to the shape and position of the fuse 201. The fuse 201 is placed in the groove 104, which can not only cover one side of the fuse 201 to achieve stable placement, but also increase the contact surface of the fuse 201 and the pin 202 parallel to the bottom wall 101 with the bottom wall 101, thereby increasing the heat conduction area, which is conducive to efficient heat conduction.

[0041] In some embodiments of the present invention, two ends of the conductive portion 301 protrude from a side of the side wall 102 close to the positioning groove 103 to abut against the pin 202. Figure 1-2 The pin 202 is usually made of metal, and metal is a plastic material. Therefore, it is easy to be plastically deformed during the production process, resulting in the pin 202 being unable to fit and contact with the conductive part 301 when it is placed in the positioning groove 103, and the test loop cannot be formed. Therefore, the protrusions 3011 are formed by protruding from the side wall 102 at both ends of the conductive part 301, which protrude from the side wall 102 facing the positioning groove 103, so that the conductive part 301 can continuously abut the pin 202 to ensure that the test loop is connected.

[0042] In some embodiments of the present invention, the portion of the conductive part 301 protruding from the side wall 102 is made of an elastic material. Specifically, the protrusion 3011 can be made of an elastically deformable material. When the pin 202 abuts against the conductive part 301, the protrusion 3011 can keep pushing the pin 202 within a certain elastic force range without causing plastic deformation of the pin, thereby maintaining a contact and connectivity state. The protrusion 3011 can be a metal spring sheet, or the conductive part 301 is a metal spring sheet.

[0043] In some embodiments of the utility model, a slot for abutting the pin 202 is provided on the portion of the conductive portion 301 protruding from the side wall 102, and the pin 202 is arranged in the slot, thereby covering the contact portion between the pin 202 and the slot, thereby preventing the pin 202 from shaking and displacing, which is not conducive to subsequent positioning welding.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fuse welding tool, characterized in that: include: A fixing seat, the fixing seat is used to fix the fuse and the PCB board, wherein pins are connected to both sides of the fuse, and the pins are used to be welded to the PCB board; Conductive parts, there are two conductive parts, the two conductive parts are arranged on the fixing seat, one end of one of the conductive parts is used to abut against the pin on one side of the fuse, and one end of the other conductive part is used to abut against the pin on the other side of the fuse, and the ends of the two conductive parts that are not abutted against the pin are both electrically connected to the conduction test tool; Wherein, the portion of the fixing seat located between the two conductive parts is provided with an insulating part, or the portion of the fixing seat located between the two conductive parts is made of insulating material.

2. The fuse welding tool according to claim 1, characterized in that: The fixing seat is provided with a bottom wall and at least two side walls, one of the two side walls is provided at one end of the bottom wall, and the other is provided at the other end of the bottom wall to enclose a positioning groove, and the positioning groove is used to fix and place the fuse and the pin.

3. The fuse welding tool according to claim 2, characterized in that: The two conductive parts are respectively arranged on the two side walls, and at least parts of the two conductive parts are located in the positioning grooves to abut against the pins.

4. The fuse welding tool according to claim 2, characterized in that: At least a portion of the side wall is made of a heat-conductive material, and the portion of the side wall made of the heat-conductive material contacts the fuse and the pin, and / or at least a portion of the bottom wall is made of a heat-conductive material, and the portion of the bottom wall made of the heat-conductive material contacts the fuse and the pin.

5. The fuse welding tool according to claim 2, characterized in that: The fixing seat also includes a coolant channel, and the wall surface of the coolant channel close to the fuse and the pin is made of heat-conducting material.

6. The fuse welding tool according to claim 5, characterized in that: A cooling liquid channel is provided in the side wall, and / or a cooling liquid channel is provided in the bottom wall.

7. The fuse welding tool according to claim 2, characterized in that: The bottom wall is provided with a groove, and the shape of the groove is adapted to the fuse.

8. The fuse welding tool according to claim 3, characterized in that: Two ends of the conductive portion protrude from one side of the side wall close to the positioning groove to abut against the pin.

9. The fuse welding tool according to claim 8, characterized in that: The portion of the conductive part protruding from the side wall is made of elastic material.

10. The fuse welding tool according to claim 8, characterized in that: A slot for abutting against the pin is arranged on the portion of the conductive part protruding from the side wall.

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