Relay module

Abstract

The utility model relates to the technical field of relay modules, in particular to a relay module, which is characterized in that the upper side of a bottom shell is open, a trapezoidal bulge is formed on the upper side of the bottom shell, a trapezoidal groove matched with the trapezoidal bulge is formed in the middle of the lower side of a shell cover, and circuit board terminal seats are formed on two sides of the shell cover; the length direction of the PCB in the shell cover is arranged along the direction in which the shell cover is inserted into the bottom shell, a trapezoidal bulge is further constructed on the upper side of the bottom shell, and a trapezoidal groove matched with the trapezoidal bulge is constructed in the middle of the lower side of the shell cover, so that the connection convenience and the connection stability of the bottom shell and the shell cover can be improved on the basis of not increasing the volume of the bottom shell and the shell cover, and the service life of the bottom shell is prolonged. The root part of the circuit board terminal seat extends into the shell cover, so that the condition that the shell cover occupies external space can be reduced, the internal space of the shell cover is fully utilized, the length direction of the PCB is arranged along the direction in which the shell cover is inserted into the bottom shell, and an enough mounting space can be provided for the PCB in a limited space.

Description

Technical Field

[0001] The utility model relates to the technical field of relay modules, in particular to a relay module. Background Art

[0002] A relay is an electronic control device. It has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is usually applied to an automatic control circuit. In fact, a relay is an "automatic switch" that uses a smaller current to control a larger current. Therefore, in a circuit, a relay plays roles such as automatic regulation, safety protection, and circuit conversion.

[0003] The existing terminal block generally includes a base and a PCB board arranged on the upper surface of the base. In order to complete signal transmission, components such as input terminals, output terminals, relays, power modules, and processing units are arranged on the surface of the PCB board. Since there are many components on the surface of the PCB board, the PCB board needs to be made very large to support these components, making the entire terminal block large in volume. When actually used, it will occupy a large amount of working space, resulting in high installation costs. How to reduce the occupancy rate of the working space by the relay while ensuring the use stability of the relay and improving the practicality of the relay. Therefore, a relay module is needed. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a relay module for solving the problem of large occupancy rate of the use space by traditional relays in the prior art.

[0005] To achieve the above purpose and other related purposes, the present utility model provides the following technical solutions:

[0006] A relay module includes a bottom shell and a shell cover buckled on the bottom shell;

[0007] The upper side of the bottom shell is open, and a trapezoidal protrusion is also constructed on the upper side of the bottom shell. A trapezoidal groove matching the trapezoidal protrusion is constructed at the middle position of the lower side of the shell cover. Circuit board terminal seats are constructed on both sides of the shell cover. The outer contours on both sides of the shell cover are arranged in a stepped shape, and the roots of the circuit board terminal seats extend into the interior of the shell cover;

[0008] A PCB board is also arranged inside the shell cover. The lower side of the PCB board extends into the bottom shell. The PCB board is used to connect electrical components, and the length direction of the PCB board is arranged along the direction in which the shell cover is inserted into the bottom shell.

[0009] To implement the above technical solution, a trapezoidal protrusion is constructed on the upper side of the bottom case, and a trapezoidal groove matching the trapezoidal protrusion is constructed at the middle position on the lower side of the case cover. Without increasing the volume of the bottom case and the case cover, it can improve the connection convenience and connection stability between the bottom case and the case cover. By extending the root of the circuit board terminal block into the interior of the case cover, it can reduce the occupation of external space by the case cover, make full use of the interior space of the case cover, and arrange the length direction of the PCB board along the direction of inserting the case cover into the bottom case, which can provide sufficient installation space for the PCB board in a limited space, so as to install more electrical components on the PCB board to replace the functional effects that can only be achieved by traditional multiple groups of relays.

[0010] In an embodiment of the present invention, a protrusion limiting platform is arranged at the lower half of the trapezoidal protrusion, and a groove limiting platform is arranged at the upper half of the trapezoidal groove. When the trapezoidal protrusion is inserted into the trapezoidal groove, the lowermost end of the groove limiting platform abuts tightly against the uppermost end of the protrusion limiting platform.

[0011] To implement the above technical solution, by setting the protrusion limiting platform and the groove limiting platform to cooperate with each other, when the trapezoidal protrusion is inserted into the trapezoidal groove, they can cooperate with each other to respectively limit the displacement of the bottom case and the case cover in the front-rear direction. When the trapezoidal protrusion is inserted into the trapezoidal groove, the lowermost end of the groove limiting platform abuts tightly against the uppermost end of the protrusion limiting platform, which can also limit the displacement of the bottom case and the case cover in the up-down direction, thereby improving the connection stability between the bottom case and the case cover after the bottom case is installed in the working space.

[0012] In an embodiment of the present invention, the bottom of the protrusion limiting platform extends horizontally to the upper side of the bottom case, and moreover, the protrusion limiting platform extends horizontally beyond the hypotenuse of the trapezoidal protrusion.

[0013] To implement the above technical solution, extending the bottom of the protrusion limiting platform horizontally to the upper side of the bottom case can increase the limiting surface of the protrusion limiting platform and further improve the connection stability between the bottom case and the case cover. Extending the protrusion limiting platform horizontally beyond the hypotenuse of the trapezoidal protrusion can improve the limiting stability of the displacement of the bottom case and the case cover in the front-rear direction.

[0014] In an embodiment of the present invention, the groove limiting platform extends horizontally beyond the trapezoidal groove.

[0015] To implement the above technical solution, extending the groove limiting platform horizontally beyond the trapezoidal groove can improve the limiting stability of the displacement of the bottom case and the case cover in the front-rear direction.

[0016] In an embodiment of the present invention, a connection base is arranged at the root of the circuit board terminal block, and the connection base is plugged on the PCB board.

[0017] Implementing the above technical solution, inserting the connection base onto the PCB board can improve the connection stability between the terminal block of the circuit board and the PCB board.

[0018] In an embodiment of the present invention, elastic buckles are provided at both ends of the lower side of the shell cover, and buckle grooves are provided at both ends of the upper side of the bottom shell, and the elastic buckles are embedded in the buckle grooves.

[0019] Implementing the above technical solution, by providing elastic buckles, it is convenient to disassemble the shell cover from the bottom shell, improving the convenience of disassembly.

[0020] In an embodiment of the present invention, ventilation holes are provided on the side wall of the bottom shell.

[0021] Implementing the above technical solution, by providing ventilation holes, ventilation inside the shell can be ensured, avoiding excessive temperature on the working surface of the PCB board.

[0022] In an embodiment of the present invention, a guide rail seat is provided at the bottom of the bottom shell.

[0023] Implementing the above technical solution, the provision of the guide rail seat can facilitate the installation of the bottom shell onto the slide rail.

[0024] As described above, a relay module of the present invention has the following beneficial effects: by constructing a trapezoidal protrusion on the upper side of the bottom shell and a trapezoidal groove matching the trapezoidal protrusion at the middle position of the lower side of the shell cover, it is possible to make the bottom shell and the shell cover thinner without increasing their volumes, occupying less space, and also ensuring the convenience and stability of the connection between the bottom shell and the shell cover. By extending the root of the circuit board terminal block into the interior of the shell cover, the occupation of external space by the shell cover can be reduced, the installation is convenient, and the internal space of the shell cover is fully utilized. By arranging the length direction of the PCB board along the direction of inserting the shell cover into the bottom shell, sufficient installation space can be provided for the PCB board within a limited space, so that more electrical components can be installed on the PCB board to replace the functional effects achieved by traditional multiple groups of relays. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It shows a schematic structural diagram of the relay module disclosed in the embodiment of the present invention.

[0026] Figure 2 It shows a schematic structural diagram of the bottom shell of the relay module disclosed in the embodiment of the present invention.

[0027] Figure 3 It shows a schematic structural diagram of the shell cover of the relay module disclosed in the embodiment of the present invention.

[0028] DESCRIPTION OF REFERENCE NUMERALS

[0029] 1. Bottom shell; 2. Shell cover; 3. Trapezoidal protrusion; 4. Trapezoidal groove; 5. Circuit board terminal seat; 6. PCB board; 7. Protrusion limiting platform; 8. Groove limiting platform; 9. Connection base; 10. Elastic buckle; 11. Ventilation hole; 12. Guide rail seat. Detailed implementation mode

[0030] The following specific embodiments illustrate the implementation mode of the present invention. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0031] Please refer to Figures 1 to 3 , the present invention provides a relay module, including a bottom shell 1 and a shell cover 2 buckled on the bottom shell 1. The upper side of the bottom shell 1 is open, and a trapezoidal protrusion 3 is also constructed on the upper side of the bottom shell 1. A trapezoidal groove 4 matching the trapezoidal protrusion 3 is constructed at the middle position of the lower side of the shell cover 2. Circuit board terminal seats 5 are constructed on both sides of the shell cover 2. The outer contours on both sides of the shell cover 2 are arranged in a stepped shape. Moreover, the root of the circuit board terminal seat 5 extends into the interior of the shell cover 2. A PCB board 6 is also provided inside the shell cover 2. The lower side of the PCB board 6 extends into the bottom shell 1. The PCB board 6 is used to connect electrical components. The length direction of the PCB board 6 is arranged along the direction in which the shell cover 2 is inserted into the bottom shell 1.

[0032] By constructing a trapezoidal protrusion 3 on the upper side of the bottom shell 1 and a trapezoidal groove 4 matching the trapezoidal protrusion 3 at the middle position of the lower side of the shell cover 2, the connection convenience and connection stability of the bottom shell 1 and the shell cover 2 can be improved without increasing the volume of the bottom shell 1 and the shell cover 2. By extending the root of the circuit board terminal seat 5 into the interior of the shell cover 2, the occupation of external space by the shell cover 2 can be reduced, and the internal space of the shell cover 2 can be fully utilized. By arranging the length direction of the PCB board 6 along the direction in which the shell cover 2 is inserted into the bottom shell 1, sufficient installation space can be provided for the PCB board 6 in a limited space, so that more electrical components can be installed on the PCB board 6 to replace the functional effects that can only be achieved by traditional multiple groups of relays.

[0033] A protrusion limiting platform 7 is arranged at the lower half of the trapezoidal protrusion 3, and a groove limiting platform 8 is arranged at the upper half of the trapezoidal groove 4. When the trapezoidal protrusion 3 is inserted into the trapezoidal groove 4, the lowermost end of the groove limiting platform 8 abuts against the uppermost end of the protrusion limiting platform 7. By setting the protrusion limiting platform 7 and the groove limiting platform 8 to cooperate with each other, when the trapezoidal protrusion 3 is inserted into the trapezoidal groove 4, they can cooperate with each other to respectively limit the displacement of the bottom shell 1 and the shell cover 2 in the front-back direction. And when the trapezoidal protrusion 3 is inserted into the trapezoidal groove 4, the lowermost end of the groove limiting platform 8 abuts against the uppermost end of the protrusion limiting platform 7, which can also limit the displacement of the bottom shell 1 and the shell cover 2 in the up-down direction, thereby improving the connection stability of the bottom shell 1 and the shell cover 2 after the bottom shell 1 is installed in the working space.

[0034] The bottom of the convex limiting platform 7 extends horizontally to the upper side of the bottom shell 1, and the bottom of the convex limiting platform 7 extends horizontally beyond the hypotenuse of the trapezoidal protrusion 3. Extending the bottom of the convex limiting platform 7 horizontally to the upper side of the bottom shell 1 can increase the limiting surface of the convex limiting platform 7 and further improve the connection stability between the bottom shell 1 and the shell cover 2. Extending the bottom of the convex limiting platform 7 horizontally beyond the hypotenuse of the trapezoidal protrusion 3 can improve the limiting stability of the displacement of the bottom shell 1 and the shell cover 2 in the front-back direction.

[0035] The groove limiting platform 8 extends horizontally beyond the trapezoidal groove 4. Extending the groove limiting platform 8 horizontally beyond the trapezoidal groove 4 can improve the limiting stability of the displacement of the bottom shell 1 and the shell cover 2 in the front-back direction.

[0036] A connection base 9 is provided at the root of the circuit board terminal seat 5, and the connection base 9 is inserted into the PCB board 6. Inserting the connection base 9 into the PCB board 6 can improve the connection stability between the circuit board terminal seat 5 and the PCB board 6.

[0037] Elastic buckles 10 are provided at both ends of the lower side of the shell cover 2, and buckle grooves are provided at both ends of the upper side of the bottom shell 1. The elastic buckles 10 are embedded in the buckle grooves. By providing the elastic buckles 10, it is convenient to disassemble the shell cover 2 from the bottom shell 1 and improve the convenience of disassembly.

[0038] Ventilation holes 11 are provided on the side wall of the bottom shell 1. By providing the ventilation holes 11, ventilation inside the shell can be ensured and the temperature of the working surface of the PCB board 6 can be prevented from being too high.

[0039] A guide rail seat 12 is provided at the bottom of the bottom shell 1. The provision of the guide rail seat 12 can facilitate the installation of the bottom shell 1 onto the slide rail.

[0040] In the present utility model, a trapezoidal protrusion is further constructed on the upper side of the bottom shell, and a trapezoidal groove matching the trapezoidal protrusion is constructed at the middle position of the lower side of the shell cover. Without increasing the volume of the bottom shell and the shell cover, the connection convenience and connection stability between the bottom shell and the shell cover can be improved. By extending the root of the circuit board terminal seat into the interior of the shell cover, the occupation of external space by the shell cover can be reduced, and the internal space of the shell cover can be fully utilized. By arranging the length direction of the PCB board along the direction in which the shell cover is inserted into the bottom shell, sufficient installation space can be provided for the PCB board within a limited space, so that more electrical components can be installed on the PCB board to replace the functional effects achieved by a traditional multi-group relay.

[0041] The above embodiments are only illustrative of the principles and effects of the present utility model and are not used to limit the present utility model. All equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A relay module, characterized in that, It includes a bottom shell and a shell cover snap-connected to the bottom shell; The upper side of the bottom shell is open, and a trapezoidal protrusion is constructed on the upper side of the bottom shell. A trapezoidal groove matching the trapezoidal protrusion is constructed at the middle position of the lower side of the shell cover. Circuit board terminal seats are constructed on both sides of the shell cover. The outer contours of both sides of the shell cover are arranged in a stepped shape. Moreover, the roots of the circuit board terminal seats extend into the interior of the shell cover. A PCB board is also provided inside the shell cover. The lower side of the PCB board extends into the bottom shell. The PCB board is used to connect electrical components. The length direction of the PCB board is arranged along the direction in which the shell cover is inserted into the bottom shell.

2. The relay module according to claim 1, wherein: A protrusion limiting platform is arranged at the lower half of the trapezoidal protrusion, and a groove limiting platform is arranged at the upper half of the trapezoidal groove. When the trapezoidal protrusion is inserted into the trapezoidal groove, the lowermost end of the groove limiting platform abuts tightly against the uppermost end of the protrusion limiting platform.

3. The relay module according to claim 2, wherein: The bottom of the protrusion limiting platform extends horizontally to the upper side of the bottom shell. Moreover, the protrusion limiting platform extends horizontally beyond the hypotenuse of the trapezoidal protrusion.

4. The relay module according to claim 2, characterized in that: The groove limiting platform extends horizontally beyond the trapezoidal groove.

5. The relay module according to claim 1, wherein: A connection base is arranged at the root of the circuit board terminal seat, and the connection base is plugged onto the PCB board.

6. The relay module according to claim 1, characterized in that: Elastic buckles are arranged at both ends of the lower side of the shell cover, and buckle grooves are arranged at both ends of the upper side of the bottom shell. The elastic buckles are embedded in the buckle grooves.

7. The relay module according to claim 1, characterized in that: Ventilation holes are arranged on the side wall of the bottom shell.

8. The relay module according to claim 1, wherein: A guide rail seat is arranged at the bottom of the bottom shell.

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