Rotary coding switch

Abstract

The utility model discloses a rotary coding switch, which comprises a switch body and a mounting base, two ends of the switch body are provided with a plurality of leading-out terminals which are arranged at equal intervals, two ends of the mounting base are provided with concave cavities capable of accommodating the leading-out terminals, the concave cavities are provided with conductive terminals, and the conductive terminals are arranged on the mounting base. Movable fixing devices are further arranged at the two ends of the mounting base, and when the leading-out terminals abut against the conductive terminals and the fixing devices are pushed to the positions above the leading-out terminals, the fixing devices act on the leading-out terminals, so that the leading-out terminals are pressed on the conductive terminals. According to the utility model, the leading-out terminal can be tightly pressed on the conductive terminal only by pushing the fixing device to move, so that electric connection is realized; when the fixing device is reset, the leading-out terminal is not subjected to the acting force from the fixing device, so that the leading-out terminal is separated from the conductive terminal, the disassembly and assembly convenience is improved, the circuit board is not damaged, and the product has the advantages of being quick to disassemble and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary switches, in particular to a rotary coding switch. Background Art

[0002] A rotary coding switch, also known as a small rotary encoder, refers to a switch electronic component with a set of regular and strictly timed pulses. The lead terminals of the existing rotary coding switch are electrically connected to the circuit board through solder, and the solder also plays a fixing role. Since the rotary coding switch has multiple lead terminals, when disassembling and replacing, it is necessary to clean all the solder on the lead terminals so that the rotary coding switch can be removed from the circuit board, which leads to a long disassembly time; at the same time, during the disassembly process, it is often difficult to suck out the solder, causing the circuit board to be in a high temperature state for a long time, resulting in damage to the circuit board. Therefore, the applicant has made a useful design and found a solution to the above problem. The technical solution to be introduced below is produced in this context. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional rotary coding switch design and provide a product that is quick to disassemble and easy to install.

[0004] To solve the above problems, the utility model adopts the following technical solutions.

[0005] A rotary coding switch comprises a switch body and a mounting base, wherein a plurality of lead terminals arranged at equal intervals are provided at both ends of the switch body, a concave cavity for accommodating the lead terminals is provided at both ends of the mounting base, and a conductive terminal is provided at the concave cavity, and a movable fixing device is also provided at both ends of the mounting base, and when the lead terminal abuts against the conductive terminal, the fixing device is pushed to the top of the lead terminal, and the fixing device acts on the lead terminal to press the lead terminal against the conductive terminal.

[0006] Preferably, the conductive terminal is provided with a lead pin and passes through the cavity.

[0007] Preferably, guide grooves are provided on both sides of the mounting base, and limiting through holes are provided on the side walls of the guide grooves. The mounting base is provided with a groove capable of accommodating the switch body.

[0008] Preferably, the fixing device includes a movable plate, a spring, and a clamping rod. Guide blocks are provided on both sides of the movable plate and are slidably set in the guide grooves. The guide blocks are provided with limit blocks and are slidably set in the limit through holes. The movable plate is provided with a clearance groove, and the clearance groove is provided with a through hole corresponding to the lead-out terminal. The movable plate is provided with a pushing part.

[0009] Preferably, the clamping rod is arranged in the through hole, a baffle is arranged at one end of the clamping rod, the clamping rod is further provided with a clamping part, the clamping part is provided with a blind hole, the spring is arranged in the blind hole and abuts against the yielding groove, so that the baffle abuts against the movable plate.

[0010] Preferably, first inclined surfaces are provided on both sides of the concave cavity, and a second inclined surface is provided in the concave cavity and is located on the movable track of the pressing part.

[0011] Preferably, the switch body includes a base transmission device, a cover, a spring plate, a cap, a contact piece, and a base. The contact piece, the cap, the transmission device, and the spring plate are sequentially arranged on the base. A sealing ring is provided on the outer wall of the transmission device. The cover is installed and fixed on the top of the base so that the spring plate acts on the transmission device.

[0012] Beneficial effects:

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model only needs to push the fixing device to move, so that the lead terminal can be pressed on the conductive terminal, thereby realizing electrical connection; when the fixing device is reset, the lead terminal is not subjected to the force from the fixing device, so that the lead terminal is separated from the conductive terminal, and the elastic force released by the spring not only presses the pressing part on the lead terminal, but also makes the guide block close to the top of the guide groove, so that the movable plate is fixed in the position after the movement, and at the same time, it is also the connection between the switch body and the mounting base, which improves the convenience of disassembly and assembly, and will not cause damage to the circuit board, so that the product has the advantages of quick disassembly and convenient installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic cross-sectional structure diagram of a rotary coding switch of the utility model when it is fixed;

[0016] Figure 2 This is a structural schematic diagram of a mounting base of a rotary coding switch of the utility model;

[0017] Figure 3 This is an exploded view of a fixing device of a rotary coding switch of the utility model;

[0018] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0019] Reference numerals: 1. switch body; 2. mounting base; 3. conductive terminal; 4. fixing device;

[0020] 11. Lead terminal; 12. Transmission device; 13. Cover; 14. Spring plate; 15. Cover cap; 16. Contact piece; 17. Base; 18. Sealing ring;

[0021] 21. concave cavity; 22. guide groove; 23. limiting through hole; 24. groove;

[0022] 211. The first inclined plane; 212. The second inclined plane;

[0023] 31. Lead out the feet;

[0024] 41. movable plate; 42. spring; 43. pressing rod; 44. limiting block;

[0025] 411, guide block; 412, clearance groove; 413, perforation; 414, pushing part;

[0026] 431. baffle; 432. pressing portion; 433. blind hole. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 present invention.

[0029] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0030] Reference example Figures 1 to 3 A rotary coding switch includes a switch body 1 and a mounting base 2. A plurality of lead terminals 11 arranged at equal intervals are provided at both ends of the switch body 1. A concave cavity 21 for accommodating the lead terminals 11 is provided at both ends of the mounting base 2. A conductive terminal 3 is provided at the concave cavity 21. A movable fixing device 4 is also provided at both ends of the mounting base 2. When the lead terminal 11 abuts against the conductive terminal 3, the fixing device 4 is pushed to the top of the lead terminal 11. The fixing device 4 acts on the lead terminal 11 to press the lead terminal 11 against the conductive terminal 3.

[0031] It is worth mentioning that the conductive terminal 3 is provided with a lead pin 31 and passes through the cavity 21, and the lead pin 111 is electrically connected to the circuit board;

[0032] It is worth mentioning that guide grooves 22 are provided on both sides of the mounting base 2, and the side walls of the guide grooves 22 are provided with limit through holes 23. The mounting base 2 is provided with a groove 24 that can accommodate the switch body 1. The guide grooves 22 provide a guide for the movable plate 41 and prevent the movable plate 41 from detaching. The limit through holes 23 limit the movable distance of the movable plate 41, and the grooves 24 are avoided from the base 17.

[0033] It is worth mentioning that the fixing device 4 includes a movable plate 41, a spring 42, and a clamping rod 43. Guide blocks 411 are provided on both sides of the movable plate 41 and are slidably arranged in the guide groove 22. The guide blocks 411 are provided with limit blocks 44 and are slidably arranged in the limit through holes 23. The movable plate 41 is provided with a clearance groove 412, and the clearance groove 412 is provided with a through hole 413 corresponding to the lead-out terminal 11. The movable plate 41 is provided with a pushing portion 414. The clearance groove 412 accommodates the clamping rod 43, and the through hole 413 provides a guiding function for the clamping rod 43. The pushing portion 414 facilitates the user to control the forward and backward movement of the movable plate 41.

[0034] It is worth mentioning that the pressing rod 43 is arranged in the through hole 413, a baffle 431 is arranged at one end of the pressing rod 43, the pressing rod 43 is further provided with a pressing portion 432, the pressing portion 432 is provided with a blind hole 433, the spring 42 is arranged in the blind hole 433 and abuts against the yielding groove 412, so that the baffle 431 abuts against the movable plate 41, the baffle 431 limits the downward movement distance of the pressing portion 432, and the blind hole 433 concentrates the force of the spring 42 to prevent the spring 42 from deflecting;

[0035] It is worth mentioning that the first inclined surface 211 is provided on both sides of the concave cavity 21, and the concave cavity 21 is provided with a second inclined surface 212, which is located on the moving track of the clamping portion 432. The first inclined surface 211 guides the lead-out terminal 11 to enter the concave cavity 21, and the second inclined surface 212 makes the clamping portion 432 move upward, so that the movable plate 41 is smoothly reset;

[0036] It is worth mentioning that the switch body 1 includes a base transmission device 12, a cover 13, a spring plate 14, a cap 15, a contact 16, and a base 17. The contact 16, the cap 15, the transmission device 12, and the spring plate 14 are arranged on the base 17 in sequence. The outer wall of the transmission device 12 is provided with a sealing ring 18. The cover 13 is installed and fixed on the top of the base 17 so that the spring plate 14 acts on the transmission device 12.

[0037] The use principle of the utility model is now described as follows:

[0038] The lead terminal 11 is abutted against the conductive terminal 3, and the movable plate 41 is pushed toward the center direction of the mounting base 2. The limit block 44 moves from one end of the limit through hole 23 to the other end of the limit through hole 23. The pressing portion 432 passes through the second inclined surface 212 in sequence and abuts against the lead terminal 11. The elastic force released by the spring 42 is applied to the pressing portion 432, so that the pressing portion 432 presses the lead terminal 11 against the conductive terminal 3, thereby reducing the contact resistance and heat generation, and completing the connection and fixation between the switch body 1 and the mounting base 2.

[0039] The movable plate 41 is pulled outward by the pushing portion 414, so that the limit block 44 is reset to the original position of the limit through hole 23. At the same time, the clamping portion 432 leaves the lead-out terminal 11 and gradually moves upward along the second inclined surface 212, so that the spring 42 accumulates energy and a distance is maintained between the baffle 431 and the movable plate 41, thereby completing the disassembly action of the switch body 1 and the mounting base 2.

[0040] The above design scheme can enable the product to achieve the advantages of quick disassembly and convenient installation.

[0041] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A rotary coding switch, comprising a switch body (1) and a mounting base (2), wherein two ends of the switch body (1) are provided with a plurality of lead terminals (11) arranged at equal intervals, characterized in that: The two ends of the mounting base (2) are provided with a cavity (21) capable of accommodating a lead terminal (11), the cavity (21) being provided with a conductive terminal (3), and the two ends of the mounting base (2) are also provided with a movable fixing device (4), when the lead terminal (11) abuts against the conductive terminal (3), the fixing device (4) is pushed to the top of the lead terminal (11), and the fixing device (4) acts on the lead terminal (11), so that the lead terminal (11) is pressed tightly against the conductive terminal (3).

2. The rotary coding switch according to claim 1, characterized in that: The conductive terminal (3) is provided with a lead pin (31) and passes through the cavity (21).

3. The rotary coding switch according to claim 2, characterized in that: Guide grooves (22) are provided on both sides of the installation base (2), and the side walls of the guide grooves (22) are provided with limiting through holes (23). The installation base (2) is provided with a groove (24) capable of accommodating the switch body (1).

4. The rotary coding switch according to claim 3, characterized in that: The fixing device (4) comprises a movable plate (41), a spring (42), and a clamping rod (43); guide blocks (411) are provided on both sides of the movable plate (41) and are slidably arranged in the guide groove (22); the guide blocks (411) are provided with limit blocks (44) and are slidably arranged in the limit through holes (23); the movable plate (41) is provided with a clearance groove (412); the clearance groove (412) is provided with a through hole (413) corresponding to the lead-out terminal (11); and the movable plate (41) is provided with a pushing portion (414).

5. The rotary coding switch according to claim 4, characterized in that: The clamping rod (43) is arranged in the through hole (413), a baffle (431) is arranged at one end of the clamping rod (43), the clamping rod (43) is further provided with a clamping portion (432), the clamping portion (432) is provided with a blind hole (433), the spring (42) is arranged in the blind hole (433) and abuts against the clearance groove (412), so that the baffle (431) abuts against the movable plate (41).

6. The rotary coding switch according to claim 5, characterized in that: The concave cavity (21) is provided with first inclined surfaces (211) on both sides, and the concave cavity (21) is provided with a second inclined surface (212) which is located on the moving track of the pressing portion (432).

7. The rotary coding switch according to claim 1, characterized in that: The switch body (1) comprises a base transmission device (12), a cover (13), a spring plate (14), a cap (15), a contact piece (16), and a base (17); the contact piece (16), the cap (15), the transmission device (12), and the spring plate (14) are sequentially arranged on the base (17); a sealing ring (18) is arranged on the outer wall of the transmission device (12); the cover (13) is mounted and fixed on the top of the base (17) so that the spring plate (14) acts on the transmission device (12).

Images