Relay with potentiometer

Abstract

The utility model provides a relay with a potentiometer, and the relay comprises a cover plate which is provided with at least one first through hole and a baffle plate which is arranged around the first through hole, the baffle plate is provided with a gap which is communicated with the first through hole, and the back surface of the baffle plate is provided with at least one limiting boss; the potentiometer knob is rotatably mounted on the cover plate and is provided with a knob main body located above the baffle and a connecting rod which is arranged at the bottom of the knob main body and penetrates through the first through hole, the outer wall of the connecting rod is provided with a convex block which can penetrate through the notch, and the convex block rotates along with the potentiometer knob and can abut against the limiting boss in a matched mode; the situation that the potentiometer is damaged due to excessive rotation of the knob is avoided; besides, during assembly, the connecting rod of the potentiometer knob penetrates through the through hole of the cover plate from top to bottom, the convex block also penetrates through the notch, then the potentiometer knob is rotated, and the convex block can rotate to the position below the baffle, so that the potentiometer knob is prevented from being separated from the cover plate, and the potentiometer knob and the cover plate are firmly assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a relay with a potentiometer. Background Art

[0002] A time relay is an electrical component used in a circuit with a lower voltage or a smaller current to connect or disconnect a circuit with a higher voltage and a larger current. It mainly includes a circuit board, a potentiometer and a knob. The potentiometer is set on the circuit board, and the time parameter can be adjusted by rotating the knob. The inventor found in actual use that if the knob is rotated excessively, the potentiometer is easily damaged, thereby shortening the service life of the product. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the potentiometer of the time relay in the prior art is easily damaged, thereby providing a relay with a potentiometer having a long service life.

[0004] To this end, the utility model provides a relay with a potentiometer, comprising a cover plate and a potentiometer knob, the cover plate being arranged on a housing, the cover plate having at least one first through-hole, and a baffle plate arranged around the first through-hole, the baffle plate being formed with a notch connected to the first through-hole, and at least one limiting boss being formed on the back side of the baffle plate; a potentiometer knob being rotatably mounted on the cover plate, the potentiometer knob having a knob body located above the baffle plate, and a connecting rod arranged at the bottom of the knob body and penetrating into the first through-hole, a protrusion which can be penetrated from the notch being arranged on the outer wall of the connecting rod, the protrusion rotating with the potentiometer knob and cooperating with the limiting boss to abut against each other, the potentiometer knob having an assembly position and an adjustment position, wherein, in the assembly position, the protrusion is arranged corresponding to the notch; in the adjustment position, the protrusion is located below the baffle plate.

[0005] A first circuit board and at least one potentiometer arranged on the first circuit board are arranged in the shell, and the potentiometer is formed with a first slot for the connecting rod to be inserted.

[0006] The first slot is a hexagon, and the bottom of the connecting rod is a hexagon that matches the first slot.

[0007] The cover plate is formed with a mounting groove suitable for accommodating the knob body, and the bottom of the mounting groove is provided with the first through hole, the baffle plate and the notch.

[0008] The knob body is formed with a second slot for inserting a screwdriver.

[0009] The cover plate is assembled with the shell through an elastic hook structure, and the elastic hook structure comprises a hook block arranged on the inner wall of the shell, and an elastic hook arranged at the bottom of the cover plate and adaptively connected with the hook block.

[0010] At least one LED lamp is disposed on the first circuit board, and a light guide column corresponding to the LED lamp is disposed on the cover plate.

[0011] The technical solution of the utility model has the following advantages:

[0012] 1. The relay with potentiometer provided by the utility model has a limit boss on the back side of the baffle of the cover plate, and a protrusion is provided on the outer wall of the connecting rod of the knob. The protrusion rotates with the knob and can cooperate with the limit boss when rotating at a certain angle, thereby avoiding the situation where the potentiometer is damaged due to excessive rotation of the potentiometer knob; in addition, during assembly, the connecting rod of the potentiometer knob passes through the through hole of the cover plate from top to bottom, and the protrusion also passes through the notch, and then the potentiometer knob is rotated, and the protrusion will rotate to the bottom of the baffle, that is, the baffle is located between the knob body and the protrusion, thereby preventing the knob from being separated from the cover plate, so that the knob and the cover plate are firmly assembled.

[0013] 2. The relay with potentiometer provided by the utility model has a knob body formed with a second slot for inserting a screwdriver, so that the potentiometer knob can be driven to rotate by the screwdriver, which is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a first stereoscopic view of the cover plate and the control panel of the utility model;

[0016] Figure 2 is a second stereoscopic view of the cover plate and the control panel;

[0017] Figure 3 It is a schematic diagram of the first explosion structure of the cover plate and the control plate;

[0018] Figure 4 It is a schematic diagram of the second explosion structure of the cover plate and the control plate;

[0019] Figure 5 is a three-dimensional diagram of the cover;

[0020] Figure 6 is a cross-sectional view of a relay;

[0021] Figure 7 A three-dimensional diagram of a relay.

[0022] Explanation of the accompanying drawings: 1. Cover plate; 2. Shell; 3. First perforation; 4. Baffle; 5. Notch; 6. Limiting boss; 7. Potentiometer knob; 8. Knob body; 9. Connecting rod; 10. Bump; 11. First circuit board; 12. Potentiometer; 13. First slot; 14. Mounting slot; 15. Second slot; 16. Hook block; 17. Elastic hook; 18. LED lamp; 19. Light guide column. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Example

[0028] This embodiment provides a relay with a potentiometer, such as Figure 7 As shown, it includes a housing 2, a cover plate 1 and a potentiometer knob 7.

[0029] The cover plate 1 is arranged on the housing 2. Figure 5 and Figure 6 As shown, the cover plate 1 is formed with a mounting groove 14 suitable for accommodating the knob body 8, the bottom of the mounting groove 14 is provided with a first through hole 3 located in the middle, and a baffle 4 is arranged around the first through hole 3, as shown in FIG. Figure 4 As shown, the baffle plate 4 is formed with a notch 5 connected to the first through hole 3, and the back of the baffle plate 4 is formed with a limiting boss 6. In this embodiment, the cross section of the limiting boss 6 is fan-shaped. The cover plate 1 is assembled with the housing 2 through an elastic hook structure. Figure 6 As shown, the elastic hook structure includes a hook block 16 disposed on the inner wall of the housing 2 , and an elastic hook 17 disposed at the bottom of the cover plate 1 and adaptively connected to the hook block 16 .

[0030] like Figure 3 As shown, a first circuit board 11 is provided in the shell 2, and a plurality of potentiometers 12 and LED lights 18 are arranged on the first circuit board 11, the potentiometer 12 is formed with a first slot 13 for the connecting rod 9 to be inserted, and a light guide column 19 corresponding to the LED light is installed on the cover plate 1.

[0031] The potentiometer knob 7 is rotatably mounted on the cover plate 1. Figure 2 As shown, the potentiometer knob 7 has a knob body 8 located above the baffle 4, and a connecting rod 9 provided at the bottom of the knob body 8 and passing through the first through hole 3. A protrusion 10 which can be passed through the notch 5 is provided on the outer wall of the connecting rod 9. The protrusion 10 rotates with the potentiometer knob 7, and can cooperate with the limiting boss 6 after rotating to a certain angle, so as to prevent the potentiometer knob 7 from excessive rotation. The potentiometer knob 7 has an assembly position and an adjustment position, wherein in the assembly position, the protrusion 10 is arranged corresponding to the notch 5; in the adjustment position, the protrusion 10 is located below the baffle 4. In this embodiment, the first slot 13 is a hexagon, and the bottom of the connecting rod 9 is a hexagon that matches the first slot 13. As shown Figure 1 As shown, the top surface of the knob body 8 is formed with a second slot 15 for inserting a screwdriver.

[0032] The relay with potentiometer provided by the utility model is provided with a limiting boss 6 on the back side of the baffle 4 of the cover plate 1, and a protrusion 10 is provided on the outer wall of the connecting rod 9 of the potentiometer knob 7. The protrusion 10 rotates with the potentiometer knob 7, and can cooperate with the limiting boss 6 when rotating at a certain angle, thereby avoiding the situation where the potentiometer is damaged due to excessive rotation of the potentiometer knob 7; in addition, during assembly, the connecting rod of the potentiometer knob 6 passes through the first through hole 3 of the cover plate 1 from top to bottom 9, and the protrusion 10 also passes through the notch 5, and then the potentiometer knob 7 is rotated, and the protrusion 10 will rotate to the bottom of the baffle 4, that is, the baffle 4 is located between the knob body 8 and the protrusion 10, thereby preventing the potentiometer knob 7 from being separated from the cover plate 1, so that the two are firmly assembled.

[0033] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A relay with a potentiometer, characterized in that: include: A cover plate (1) is arranged on the housing (2), the cover plate (1) having at least one first through hole (3), and a baffle plate (4) arranged around the first through hole (3), the baffle plate (4) being formed with a notch (5) communicating with the first through hole (3), and at least one limiting boss (6) being formed on the back side of the baffle plate (4); A potentiometer knob (7) is rotatably mounted on the cover plate (1), the potentiometer knob (7) comprising a knob body (8) located above the baffle plate (4), and a connecting rod (9) arranged at the bottom of the knob body (8) and penetrating into the first through hole (3), the outer wall of the connecting rod (9) being provided with a protrusion (10) which can be inserted into the notch (5), the protrusion (10) rotating with the potentiometer knob (7) and being able to cooperate with the limiting boss (6) to abut against each other, the potentiometer knob (7) having an assembly position and an adjustment position, wherein in the assembly position, the protrusion (10) is arranged corresponding to the notch (5); in the adjustment position, the protrusion (10) is located below the baffle plate (4).

2. The relay with potentiometer according to claim 1, characterized in that: A first circuit board (11) and at least one potentiometer (12) arranged on the first circuit board (11) are arranged in the housing (2); the potentiometer (12) is formed with a first slot (13) for the connecting rod (9) to be inserted.

3. The relay with potentiometer according to claim 2, characterized in that: The first slot (13) is a hexagon, and the bottom of the connecting rod (9) is a hexagon that matches the first slot (13).

4. The relay with potentiometer according to claim 1, characterized in that: The cover plate (1) is formed with a mounting groove (14) suitable for accommodating the knob body (8), and the bottom of the mounting groove (14) is provided with the first through hole (3), the baffle (4) and the notch (5).

5. The relay with potentiometer according to claim 1, characterized in that: The knob body (8) is formed with a second slot (15) for inserting a screwdriver.

6. The relay with potentiometer according to claim 1, characterized in that: The cover plate (1) is assembled with the shell (2) via an elastic hook structure, wherein the elastic hook structure comprises a hook block (16) arranged on the inner wall of the shell (2), and an elastic hook (17) arranged at the bottom of the cover plate (1) and adapted to be connected to the hook block (16).

7. The relay with potentiometer according to claim 2, characterized in that: At least one LED lamp (18) is provided on the first circuit board (11), and a light guide column (19) corresponding to the LED lamp is provided on the cover plate (1).

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