Relay convenient to assemble

Abstract

The utility model discloses a relay convenient to assemble, which comprises a base, a coil assembly, static contact pieces and a circuit board are arranged on the base, the coil assembly and the static contact pieces are electrically connected with the circuit board, connecting holes are arranged on the static contact pieces, a plurality of connecting protrusions are arranged on the circuit board, and the number of the connecting protrusions is equal to that of the static contact pieces. The connecting protrusions are matched with the connecting holes in the corresponding static contact pieces in an inserted mode, and the static contact pieces abut against the soldering tin on the connecting protrusions. According to the utility model, early-stage assembly production and later-stage maintenance operation are greatly facilitated, labor cost and wiring error correction are greatly saved, and welding errors are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, in particular to an electromagnetic relay which is easy to assemble. Background Art

[0002] Electromagnetic relay is an electronic control device that uses a smaller current and a lower voltage to control a larger current and a higher voltage. It is usually used in automatic control circuits and plays the role of automatic adjustment, safety protection, circuit conversion, etc. In the existing electromagnetic relay, the circuit board, multiple static contacts and multiple coil assemblies are installed on the base, and the static contacts and coil assemblies are electrically connected to the circuit board by direct connection with wires. This connection method is not only cumbersome in production, but also has many and messy wiring inside the shell, which is not conducive to early assembly production and later maintenance operations. Utility Model Content

[0003] The purpose of the utility model is to provide a relay that is easy to assemble. The utility model greatly facilitates early assembly production and later maintenance operations, while greatly saving labor costs and wiring error correction, and avoiding welding errors.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a relay that is easy to assemble, comprising a base, on which a coil assembly, a static contact piece and a circuit board are mounted, the coil assembly and the static contact piece are electrically connected to the circuit board, the static contact piece is provided with a connecting hole, the circuit board is provided with a plurality of connecting protrusions whose number is equal to the static contact piece, the connecting protrusions are plugged into and matched with the corresponding connecting holes on the static contact piece, and the static contact piece abuts against the solder on the connecting protrusions.

[0005] By adopting the above technical solution, when the static contact piece is installed on the base, the connecting protrusion on the circuit board is directly inserted into the connecting jack on the static contact piece, and the static contact piece and the solder on the connecting protrusion are against each other to form an electrical connection. Compared with the wire connection, this structure is not only easy to process and assemble, but also will not be entangled after the connection. The structure is flatter and more beautiful, and the stability is better, which greatly facilitates the early assembly production, and at the same time greatly saves labor costs and wiring error correction, and avoids welding errors.

[0006] The utility model is further configured to include at least one group of conductive components, wherein the conductive components include a first conductive sheet and a second conductive sheet, wherein the first conductive sheet and the second conductive sheet are both plugged into a circuit board, the first conductive sheet and the second conductive sheet are both electrically connected to the circuit board, and the first conductive sheet and the second conductive sheet are both connected to two lead pins of a coil component.

[0007] By adopting the above technical solution, the conductive sheet is plugged into the circuit board for electrical connection, and then the conductive sheet and the coil assembly are electrically connected together. Compared with the wire connection, this structure is not only easy to process and assemble, but also will not be entangled after the connection. The structure is flatter and more beautiful, and the stability is better, which greatly facilitates the early assembly production.

[0008] The utility model is further configured such that the first conductive sheet and the second conductive sheet are in the shape of long strips, and the first conductive sheet and the second conductive sheet are arranged in parallel.

[0009] By adopting the above technical solution, the first conductive sheet and the second conductive sheet are arranged neatly without interfering with each other, and the assembly operation is also convenient.

[0010] The utility model is further configured such that a first plugging protrusion is provided at one end of the first conductive sheet close to the circuit board, and a first limiting step is formed between the first plugging protrusion and the first conductive sheet, a second plugging protrusion is provided at one end of the second conductive sheet close to the circuit board, and a second limiting step is formed between the second plugging protrusion and the second conductive sheet, a first plugging hole and a second plugging hole are provided on the circuit board, the first plugging protrusion is inserted into the first plugging hole, and the first limiting step is tightly pressed against the circuit board, the second plugging protrusion is inserted into the second plugging hole, and the second limiting step is tightly pressed against the circuit board.

[0011] By adopting the above technical solution, the connection between the first conductive sheet and the second conductive sheet and the circuit board can be achieved, and the connection structure is simple and reliable, and the assembly and disassembly is very convenient.

[0012] The utility model is further configured such that the two lead pins of the coil component are respectively against the first conductive sheet and the second conductive sheet and are welded together.

[0013] By adopting the above technical solution, the connection operation is very convenient and the structural stability is good.

[0014] The utility model is further configured such that an indicator light assembly is also provided on the circuit board, and the indicator light assembly includes an LED light sheet and a light guide column. The LED light sheet is electrically connected to the circuit board, and a mounting hole is provided on the base. The light guide column is arranged through the mounting hole, and the inner end of the light guide column extends to the LED light sheet.

[0015] By adopting the above technical solution, the LED light sheet can be used as an indicator light, and the light can be guided to a specific position through the light guide column, making it easier for users to observe.

[0016] The utility model is further configured that the inner end of the light guide column is provided with a light guide inclined surface, and the light guide inclined surface is arranged toward the LED light sheet.

[0017] By adopting the above technical solution and setting a light-guiding inclined plane, more light sources can be collected and refracted to the end of the light-guiding column, thereby improving the indication brightness.

[0018] The utility model is further configured such that the base is also provided with a guide sleeve coaxial with the mounting hole, the guide sleeve is arranged on the outer periphery of the light guide column, a limit slot is provided at the outer end of the guide sleeve, and a limit block matching with the limit slot is provided on the light guide column.

[0019] By adopting the above technical solution, the positioning and installation of the light guide column is facilitated.

[0020] The utility model is further configured such that a protective mask for covering the indicator light assembly and the coil assembly is also installed on the base, a protrusion is provided on the outer side of the protective mask at a position corresponding to the light guide column, and a recess for allowing the outer end of the light guide column to be embedded is provided on the inner side of the protective mask corresponding to the protrusion.

[0021] By adopting the above technical solution, setting up a protective mask can effectively prevent internal components from being exposed to the outside, thereby protecting the components. At the same time, the design of the recessed portion on the protective mask can prevent the protective mask from interfering with the installation of the light guide column. The raised portion on the protective mask corresponds to the position of the light guide column and also corresponds to the light-emitting position, thereby making the overall exterior of the relay more beautiful.

[0022] The utility model is further configured such that the base and the protective mask are detachably connected together by means of snap fit.

[0023] By adopting the above technical solution, the connection structure is simple and reliable, and the assembly and disassembly is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall appearance structure of the utility model;

[0025] Figure 2 An exploded view of the utility model as a whole;

[0026] Figure 3 It is a schematic diagram of the internal structure of the utility model from a first viewing direction;

[0027] Figure 4 It is a second view structural schematic diagram of the internal structure of the utility model;

[0028] Figure 5 A top view of the utility model as a whole;

[0029] Figure 6 for Figure 5 AA section view;

[0030] Figure 7It is a schematic diagram of the matching structure of the light guide column and the guide sleeve of the utility model.

[0031] In the figure: 1. base; 2. coil assembly; 3. circuit board; 4. conductive assembly; 5. first conductive sheet; 6. second conductive sheet; 7. connecting hole; 8. connecting protrusion; 9. first plug-in protrusion; 10. first limiting step; 11. second plug-in protrusion; 12. second limiting step; 13. first plug-in hole; 14. second plug-in hole; 15. indicator light assembly; 16. LED light sheet; 17. light guide column; 18. mounting hole; 19. light guide slope; 20. guide sleeve; 21. limiting slot; 22. limiting block; 23. static contact sheet; 24. protective mask; 25. protrusion; 26. recessed portion. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0033] Example: As shown in the attached Figures 1 to 7 The relay shown is easy to assemble, comprising a base 1, on which a coil assembly 2, a static contact piece and a circuit board 3 are mounted, the coil assembly 2 and the static contact piece 23 are both electrically connected to the circuit board 3, the static contact piece 23 is provided with a connection hole 7, the circuit board 3 is provided with a plurality of connection protrusions 8 of the same number as the static contact piece 23, the connection protrusions 8 are plugged and matched with the connection holes 7 on the corresponding static contact piece 23, and the static contact piece 23 abuts against the solder on the connection protrusion 8. When the static contact piece 23 is mounted on the base 1, the connection protrusion 8 on the circuit board 3 is directly inserted into the connection jack on the static contact piece 23, and the static contact piece 23 abuts against the solder on the connection protrusion 8 to form an electrical connection. Compared with the wire connection, this structure is not only easy to process and assemble, but also does not get tangled after the connection, the structure is more flat and beautiful, and the stability is better, which greatly facilitates the early assembly production, and at the same time greatly saves labor costs and wiring error correction, and avoids welding errors.

[0034] As attached Figure 3 and attached Figure 4As shown, at least one group of conductive components 4 is also included, and the conductive components 4 include a first conductive sheet 5 and a second conductive sheet 6, and the first conductive sheet 5 and the second conductive sheet 6 are both plugged into the circuit board 3, and the first conductive sheet 5 and the second conductive sheet 6 are both electrically connected to the circuit board 3, and the first conductive sheet 5 and the second conductive sheet 6 are both connected to the two lead pins of the coil component 2. After the conductive sheet is plugged into the circuit board 3 for electrical connection, the conductive sheet is electrically connected to the coil component 2. Compared with the wire connection, this structure is not only easy to process and assemble, but also will not be entangled after the connection, the structure is more flat and beautiful, and the stability is better, which greatly facilitates the early assembly production.

[0035] As attached Figure 3 and attached Figure 4 As shown, the first conductive sheet 5 and the second conductive sheet 6 are in the shape of long strips, and the first conductive sheet 5 and the second conductive sheet 6 are arranged in parallel. The first conductive sheet 5 and the second conductive sheet 6 are both made of conductive metal materials and are not easily deformed. This design allows the first conductive sheet 5 and the second conductive sheet 6 to be neatly arranged without interfering with each other, and is also convenient for assembly operations.

[0036] As attached Figure 3 and attached Figure 4 As shown, the first conductive sheet 5 is provided with a first plug-in protrusion 9 at one end close to the circuit board 3, and a first limiting step 10 is formed between the first plug-in protrusion 9 and the first conductive sheet 5, the second conductive sheet 6 is provided with a second plug-in protrusion 11 at one end close to the circuit board 3, and a second limiting step 12 is formed between the second plug-in protrusion 11 and the second conductive sheet 6, the circuit board 3 is provided with a first plug-in hole 13 and a second plug-in hole 14, the first plug-in protrusion 9 is inserted into the first plug-in hole 13, and the first limiting step 10 is pressed against the circuit board 3, and then soldered together, the second plug-in protrusion 11 is inserted into the second plug-in hole 14, and the second limiting step 12 is pressed against the circuit board 3, and then soldered together. This design can realize the connection between the first conductive sheet 5 and the second conductive sheet 6 and the circuit board 3, and the connection structure is simple and reliable, and it is very convenient to disassemble and assemble.

[0037] The two lead pins of the coil assembly 2 are respectively abutted against and welded to the first conductive sheet 5 and the second conductive sheet 6. This design is very convenient for connection operation and has good structural stability.

[0038] As attached Figure 6As shown, the circuit board 3 is also provided with an indicator light assembly 15, and the indicator light assembly 15 includes an LED light sheet 16 and a light guide column 17. The LED light sheet 16 is electrically connected to the circuit board 3. The base 1 is provided with a mounting hole 18. The light guide column 17 is arranged through the mounting hole 18 (the two are interference fit), and the inner end of the light guide column 17 extends to the LED light sheet 16. The LED light sheet 16 can be used as an indicator light, and the light can be guided to a specific position through the light guide column 17 for easy observation by the user.

[0039] As attached Figure 6 As shown, the inner end of the light guide column 17 is provided with a light guide slope 19, and the light guide slope 19 is arranged toward the LED light sheet 16. The light guide slope 19 is arranged to collect more light sources and refract them to the end of the light guide column 17, thereby improving the indication brightness.

[0040] As attached Figure 6 and attached Figure 7 As shown, the base 1 is also provided with a guide sleeve 20 coaxial with the mounting hole 18, the guide sleeve 20 and the base 1 are an integrated structure, the guide sleeve 20 is sleeved on the outer periphery of the light guide column 17, the outer end of the guide sleeve 20 is provided with a limit slot 21, and the light guide column 17 is provided with a limit block 22 that fits with the limit slot 21. This design greatly facilitates the positioning and installation of the light guide column 17.

[0041] As attached Figure 6 As shown, the base 1 is also equipped with a protective mask 24 for covering the indicator light assembly 15 and the coil assembly 2. A protrusion 25 is provided on the outer side of the protective mask 24 at a position corresponding to the light guide column 17, and a recess 26 for embedding the outer end of the light guide column 17 is provided on the inner side of the protective mask 24 corresponding to the protrusion 25. The protective mask 24 can effectively prevent the internal components from being exposed to the outside, thereby protecting the components. At the same time, the design of the recess 26 on the protective mask 24 can prevent the protective mask 24 from interfering with the installation of the light guide column 17. The protrusion 25 on the protective mask 24 corresponds to the position of the light guide column 17 and also corresponds to the light-emitting position, thereby making the overall exterior of the relay more beautiful.

[0042] In addition, the base 1 and the protective mask 24 are detachably connected together by means of a buckle fit, that is, a buckle is integrally provided on the base, and a slot matching the buckle is provided on the protective mask 24. Its connection structure is simple and reliable, and it is very convenient to disassemble and assemble.

Claims

1. A relay that is easy to assemble, comprising a base (1), on which a coil assembly (2), a stationary contact (23) and a circuit board (3) are mounted, wherein the coil assembly (2) and the stationary contact (23) are both electrically connected to the circuit board (3), characterized in that: The stationary contact piece (23) is provided with a connection hole (7), and the circuit board (3) is provided with a plurality of connection protrusions (8) whose number is equal to that of the stationary contact pieces (23). The connection protrusions (8) are plugged into and matched with the connection holes (7) on the corresponding stationary contact pieces (23), and the stationary contact pieces (23) are in contact with the solder on the connection protrusions (8).

2. A relay that is easy to assemble according to claim 1, characterized in that: The invention also comprises at least one group of conductive components (4), wherein the conductive components (4) comprise a first conductive sheet (5) and a second conductive sheet (6), wherein the first conductive sheet (5) and the second conductive sheet (6) are both plugged into the circuit board (3), the first conductive sheet (5) and the second conductive sheet (6) are both electrically connected to the circuit board (3), and the first conductive sheet (5) and the second conductive sheet (6) are both connected to two lead pins of the coil component (2).

3. A relay that is easy to assemble according to claim 2, characterized in that: The first conductive sheet (5) and the second conductive sheet (6) are in the shape of long strips, and the first conductive sheet (5) and the second conductive sheet (6) are arranged in parallel.

4. A relay that is easy to assemble according to claim 2, characterized in that: A first plugging protrusion (9) is provided at one end of the first conductive sheet (5) close to the circuit board (3), and a first limiting step (10) is formed between the first plugging protrusion (9) and the first conductive sheet (5); a second plugging protrusion (11) is provided at one end of the second conductive sheet (6) close to the circuit board (3), and a second limiting step (12) is formed between the second plugging protrusion (11) and the second conductive sheet (6); a first plugging hole (13) and a second plugging hole (14) are provided on the circuit board (3); the first plugging protrusion (9) is inserted into the first plugging hole (13), and the first limiting step (10) is tightly abutted against the circuit board (3); the second plugging protrusion (11) is inserted into the second plugging hole (14), and the second limiting step (12) is tightly abutted against the circuit board (3).

5. The relay that is easy to assemble according to claim 1, characterized in that: The two lead pins of the coil assembly (2) are respectively abutted against the first conductive sheet (5) and the second conductive sheet (6) and are welded together.

6. A relay that is easy to assemble according to claim 1, characterized in that: The circuit board (3) is also provided with an indicator light assembly (15), the indicator light assembly (15) comprising an LED light sheet (16) and a light guide column (17), the LED light sheet (16) being electrically connected to the circuit board (3), the base (1) being provided with a mounting hole (18), the light guide column (17) being arranged through the mounting hole (18), and the inner end of the light guide column (17) extending to the LED light sheet (16).

7. A relay that is easy to assemble according to claim 6, characterized in that: The inner end of the light guide column (17) is provided with a light guide inclined surface (19), and the light guide inclined surface (19) is arranged toward the LED light sheet (16).

8. The relay that is easy to assemble according to claim 6, characterized in that: The base (1) is also provided with a guide sleeve (20) coaxial with the mounting hole (18); the guide sleeve (20) is sleeved on the outer circumference of the light guide column (17); a limit slot (21) is provided at the outer end of the guide sleeve (20); and a limit block (22) is provided on the light guide column (17) and is matched with the limit slot (21).

9. A relay that is easy to assemble according to claim 6, characterized in that: The base (1) is also provided with a protective mask (24) for covering the indicator light assembly (15) and the coil assembly (2); a protrusion (25) is provided on the outer side of the protective mask (24) at a position corresponding to the light guide column (17); and a recessed portion (26) for embedding the outer end of the light guide column (17) is provided on the inner side of the protective mask (24) at a position corresponding to the protrusion (25).

10. A relay that is easy to assemble according to claim 9, characterized in that: The base (1) and the protective mask (24) are detachably connected together by means of snap fit.

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