SMD (Surface Mount Device) resistor replacement jig

Abstract

The utility model relates to a surface-mounted resistor replacing jig which comprises a fixing seat body, a mounting groove is formed in the upper surface of the fixing seat body, the front end of the mounting groove penetrates through the front end face of the fixing seat body, two conducting strips are arranged on the bottom face of the mounting groove side by side in the left-right direction, and extending limiting parts facing each other are arranged on the left side wall and the right side wall of the mounting groove. The front end of the conducting strip is provided with a bending circuitous section which is bent backwards, and the lower surface of the fixing seat body is provided with a first positioning groove for positioning the bending circuitous section; the device is simple in overall structure, convenient to mount and dismount the SMD resistor, and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit design, and in particular to a chip resistor replacement jig. Background Art

[0002] During the development of PCB boards, the size of resistors cannot be calculated too precisely, resulting in the need to frequently replace resistors on the board. However, directly soldering the resistors on is very troublesome, especially for chip resistors. Repeated soldering and disassembly can also damage the board. Therefore, in order to facilitate production and processing and to facilitate the replacement of resistors, we have specially designed a chip resistor replacement jig. Utility Model Content

[0003] The purpose of the present invention is to provide a chip resistor replacement jig to address the deficiencies in the prior art, which can well solve the above-mentioned problems.

[0004] In order to achieve the above requirements, the technical solution adopted by the present invention to solve the technical problem is:

[0005] A chip resistor replacement jig is provided, comprising a fixing seat body, the upper surface of which is provided with a mounting groove, the front end of which passes through the front end surface of the fixing seat body, two conductive sheets arranged side by side on the left and right sides of the bottom surface of the mounting groove, and the left and right side walls of the mounting groove are provided with extending limit portions facing each other; the front end of the conductive sheet is provided with a bent section bent backward, and the lower surface of the fixing seat body is provided with a first positioning groove for positioning the bent section.

[0006] In the chip resistor replacement jig described in the present invention, the bent and circuitous section is detachably connected to the fixing seat body.

[0007] The chip resistor replacement jig described in the present invention has protrusions on both the left and right side walls of the bent and circuitous section, and a clamping groove corresponding to the protrusion is provided on the inner wall of the first positioning groove to engage with the protrusion.

[0008] The chip resistor replacement jig described in the present invention, wherein a second positioning groove directly connected to the first positioning groove is provided on the rear side wall of the fixing seat body, an upward extension portion is provided at the rear end of the bent and circuitous section, and a third positioning groove adapted to the extension portion is provided on the left and right side walls of the second positioning groove.

[0009] The chip resistor replacement jig described in the present invention has a movable gap between the lower surface of the rear end of the conductive sheet and the bottom surface of the mounting groove.

[0010] The chip resistor replacement jig described in the present invention is characterized in that a fixing groove adapted to the conductive sheet is provided on the bottom surface of the mounting groove, and the upper surface of the conductive sheet is higher than the bottom surface of the mounting groove. When assembled in place, the left and right extension limit portions are respectively located directly above the left and right conductive sheets.

[0011] In the chip resistor replacement jig described in the present invention, the extension limit portion is arranged along the front-to-back direction, and the front end surface of the extension limit portion is located inside the installation groove.

[0012] In the chip resistor replacement jig described in the present invention, a first groove is longitudinally provided on the rear side wall of the mounting groove and passes through the upper surface of the fixing seat body.

[0013] The chip resistor replacement jig described in the present invention has vertical surfaces and inclined surfaces provided on the opposite side walls of the two extended limit portions in sequence from top to bottom, and the spacing between the lower ends of the two inclined surfaces is greater than the spacing between the upper ends.

[0014] The chip resistor replacement jig described in the present invention has second grooves longitudinally provided on both left and right end surfaces of the fixing seat body, which penetrate through the upper and lower surfaces thereof.

[0015] The beneficial effects of the utility model are: simple overall structure, easy manufacturing and processing, low cost, when in use, the bent and circuitous section is welded to the upper circuit of the LCB board, and the chip resistor can be installed into or removed from the installation slot, which greatly facilitates the operation of the operator and avoids the situation where the PCB board is damaged due to repeated removal of the resistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0017] Figure 1 It is a top view of the chip resistor replacement jig of the present invention.

[0018] Figure 2 It is a front view of the chip resistor replacement jig of the utility model.

[0019] Figure 3 This is a front view of the chip resistor replacement jig of the utility model after the chip resistor is installed.

[0020] Figure 4 This is a rear view of the chip resistor replacement jig of the present invention.

[0021] Figure 5 It is a bottom view of the chip resistor replacement jig of the present invention. DETAILED DESCRIPTION

[0022] The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0023] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] "Multiple" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0025] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or apparatus described in this solution during normal use.

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The chip resistor replacement jig of the preferred embodiment of the present invention is as follows Figure 1-5As shown, it includes a fixing base body 10. Specifically, the fixing base body 10 is a cube structure; a mounting groove 20 is provided on the upper surface of the fixing base body 10 for mounting a chip resistor, the front end of the mounting groove 20 passes through the front end surface of the fixing base body 10, and two conductive sheets 30 are arranged side by side on the left and right sides of the bottom surface of the mounting groove 20. The left and right side walls of the mounting groove 20 are provided with extended limit portions 40 facing each other, so that the cavity between the upper extended limit portion 40 and the conductive sheet 30 located therebelow forms a positioning cavity 200 for positioning the chip resistor 300; the front end of the conductive sheet 30 is provided with a bent section 31 that bends downward and then backward. The lower surface of the fixing seat body 10 is provided with a first positioning groove 50 for positioning the bent and roundabout section 31. Furthermore, the first positioning groove 50 is connected to the installation groove 20 through a connecting groove 60, so that the front end of the bent and roundabout section 31 can be easily inserted into the connecting groove 60 to ensure that the front side wall of the fixing seat body 10 is flat and tidy. The overall structure of this fixture is simple, the manufacturing and processing are convenient, and the cost is low. When in use, the bent and roundabout section 31 is welded to the upper circuit of the LCB board. At this time, the chip resistor can be installed into or removed from the installation groove 20, which greatly facilitates the operation of the operator and avoids the situation where the PCB board is damaged due to repeated removal of the resistor.

[0028] In this embodiment, the bent and circuitous section 31 is detachably connected to the fixing seat body 10 , so as to facilitate assembly after separate processing and also facilitate subsequent disassembly and replacement operations.

[0029] In this embodiment, a protrusion 311 is provided on the left and right side walls of the bending and detour section 31, and a corresponding groove 51 is provided on the inner wall of the first positioning groove 50 to engage with the protrusion 311, so as to fix the bending and detour section 31 in the first positioning groove 50 through the groove 51 after assembly to prevent the conductive sheet 30 from falling off accidentally.

[0030] In this embodiment, a second positioning groove 510 directly connected to the first positioning groove 50 is provided on the rear side wall of the fixing seat body 10, and an upward extension portion 312 is provided at the rear end of the bent section 31. The left and right side walls of the second positioning groove 510 are both provided with a third positioning groove (not shown) adapted to the extension portion 312 to further strengthen the fixing effect of the conductive sheet 30.

[0031] In this embodiment, there is a movable gap between the lower surface of the rear end of the conductive sheet 30 and the bottom surface of the mounting groove 20 to accommodate resistors of different thicknesses. At the same time, the chip resistor installed in the mounting groove 20 is pressed upward against the extended limit portion 40 through the raised rear end of the conductive sheet 30 to ensure contact stability.

[0032] In this embodiment, a fixing groove 70 adapted to the conductive sheet 30 is provided on the bottom surface of the mounting groove 20. The upper surface of the conductive sheet 30 is higher than the bottom surface of the mounting groove 20. When assembled in place, the left and right extended limit portions 40 are respectively located directly above the left and right conductive sheets 30 to ensure that after the chip resistor is installed in the mounting groove 20, the left and right ends can be stably pressed downward against the conductive sheet 30 through the two extended limit portions 40.

[0033] In this embodiment, the extended limit portion 40 is arranged along the front-to-back direction, and the front end surface of the extended limit portion 40 is located inside the mounting groove 20, so that the front end surfaces of the two extended limit portions 40 and the left and right side walls of the mounting groove 20 are jointly enclosed to form a mounting opening 80 with a larger diameter, so as to facilitate the rapid installation of the resistor into the cavity between the conductive sheet 30 and the extended limit portion 40.

[0034] In this embodiment, a first groove 90 is longitudinally formed on the rear side wall of the mounting groove 20 and penetrates the upper surface of the fixing base body 10 to provide a certain operating space for pushing the resistor forward out of the mounting groove 20 .

[0035] In this embodiment, vertical surfaces 41 and inclined surfaces 42 are provided on the opposite side walls of the two extended limit portions 40 from top to bottom. The spacing between the lower ends of the two inclined surfaces 42 is greater than the spacing between the upper ends. The setting of the inclined surfaces can adapt to resistors of different thicknesses and widths.

[0036] In this embodiment, the left and right end surfaces of the fixing seat body 10 are longitudinally provided with second grooves 100 running through the upper and lower surfaces thereof, which play the role of reducing weight and facilitating fixing on the circuit board.

[0037] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A chip resistor replacement jig, characterized in that: It includes a fixing seat body, the upper surface of which is provided with a mounting groove, the front end of which passes through the front end surface of the fixing seat body, two conductive sheets are arranged side by side on the left and right sides of the bottom surface of the mounting groove, and the left and right side walls of the mounting groove are provided with extending limit portions facing each other; the front end of the conductive sheet is provided with a bent section bent backward, and the lower surface of the fixing seat body is provided with a first positioning groove for positioning the bent section.

2. The chip resistor replacement jig according to claim 1, characterized in that: The bent and circuitous section is detachably connected to the fixing seat body.

3. The chip resistor replacement jig according to claim 2, characterized in that: The left and right side walls of the bending and winding section are both provided with protrusions, and the inner wall of the first positioning groove is provided with a clamping groove corresponding to the protrusion and engaged with the protrusion.

4. The chip resistor replacement jig according to claim 1 or 3, characterized in that: A second positioning groove directly connected to the first positioning groove is provided on the rear side wall of the fixing seat body, an upward extension portion is provided at the rear end of the bent section, and a third positioning groove adapted to the extension portion is provided on the left and right side walls of the second positioning groove.

5. The chip resistor replacement jig according to claim 1, characterized in that: There is a movable gap between the rear end lower surface of the conductive sheet and the bottom surface of the mounting groove.

6. The chip resistor replacement jig according to claim 1 or 5, characterized in that: A fixing groove adapted to the conductive sheet is provided on the bottom surface of the mounting groove, and the upper surface of the conductive sheet is higher than the bottom surface of the mounting groove. When assembled in place, the left and right extension limit portions are respectively located directly above the left and right conductive sheets.

7. The chip resistor replacement jig according to claim 1, characterized in that: The extension limiting portion is arranged along the front-to-back direction, and the front end surface of the extension limiting portion is located inside the installation groove.

8. The chip resistor replacement jig according to claim 1, characterized in that: A first groove is longitudinally provided on the rear side wall of the installation groove and penetrates through the upper surface of the fixing seat body.

9. The chip resistor replacement jig according to claim 1, characterized in that: The opposite side walls of the two extending limit portions are provided with vertical surfaces and inclined surfaces in sequence from top to bottom, and the distance between the lower ends of the two inclined surfaces is greater than the distance between the upper ends.

10. The chip resistor replacement jig according to claim 1, characterized in that: The left and right end surfaces of the fixing seat body are longitudinally provided with second grooves that penetrate through the upper and lower surfaces thereof.

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