Solid-state relay fixing structure and EMG electric actuator main control board comprising same

Abstract

The utility model discloses a solid-state relay fixing structure and an EMG electric actuator main control board comprising the same, the fixing structure comprises a mounting base, the mounting base is provided with a plurality of mounting female holes side by side, the mounting female holes are matched with contact pins of a solid-state relay, elastic clamping sheets are arranged in the mounting female holes, and the elastic clamping sheets are matched with the contact pins of the solid-state relay. And the elastic clamping sheet enables the contact pin to abut against the inner side surface of the mounting female hole. The solid-state relay has the advantages of being compact in structure, convenient to disassemble and assemble, low in cost and the like, the solid-state relay can be detachably installed on the circuit base plate of the main control board of the EMG electric actuator, the maintenance convenience of the solid-state relay is improved, and the use cost of the main control board of the EMG electric actuator is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit control board technical field, concretely relates to a solid state relay fixing structure and EMG electric actuator master control board containing it. BACKGROUND

[0002] In the electric power, chemical industry etc., EMG electric actuator circuit control board is common equipment. Because control board space is limited, and electronic components are numerous, and each electronic component on EMG electric actuator master control board is all welding type, and the pin of each electronic component on master control board is small and closely arranged, under the fault condition, electronic component replacement is difficult, time -consuming and laborious, and it is very easy to cause other components or master control board loop failure. EMG electric actuator is very easy to cause solid state relay failure in the field application process because of environmental influence, frequent action etc., and often needs to carry out fault handling. Overall replacement master control board is expensive, and the cost is increased, and the available resources are also wasted. UTILIT Y MODEL CONTENT

[0003] The utility model solves the technical problem that in order to overcome prior art's insufficient, provide a kind of solid state relay fixing structure and EMG electric actuator master control board containing it with compact structure, maintenance is convenient and low cost.

[0004] In order to solve the above technical problem, the technical scheme that the utility model adopts is as follows:

[0005] A kind of solid state relay fixing structure, including installation base, the installation base is equipped with multiple installation female holes side by side, the installation female hole is matched with the contact pin of solid state relay, and elastic card is equipped in installation female hole, the elastic card promotes the contact pin to resist the inside of installation female hole.

[0006] As a further improvement of the utility model, the four corners of the installation base are provided with clamping grooves, and the clamping grooves are matched with the elastic clamping members at the four corners of the solid state relay.

[0007] As a further improvement of the utility model, the end of the elastic clamping member is provided with a wedge-shaped clamping block, and the wedge-shaped clamping block is buckled at the bottom of the clamping groove.

[0008] As a further improvement of the utility model, the elastic card is made of beryllium copper alloy material.

[0009] As a further improvement of the utility model, the elastic card is irregular semicircular or W-shaped.

[0010] As a general technical concept, the utility model also provides an EMG electric actuator master control board, which comprises the above-mentioned solid state relay fixing structure.

[0011] Compared with the prior art, the solid-state relay fixing structure has the advantages that:

[0012] The solid-state relay fixing structure and the EMG electric actuator main control board comprising the same have the advantages that the elastic card is arranged in the mounting female hole, the elastic force provided by the elastic card is used to make the contact pin of the solid-state relay abut against the inner side surface of the mounting female hole, the solid-state relay is installed on the circuit bottom plate in a detachable mode, the convenience of solid-state relay maintenance is improved, and the use cost of the EMG electric actuator main control board is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses a structure principle schematic view of the EMG electric actuator main control board in the specific embodiment of the utility model;

[0014] Figure 2 The utility model discloses a structure principle schematic view of the EMG electric actuator main control board in the specific embodiment of the utility model; Figure 1 The utility model discloses a structure principle schematic view of the EMG electric actuator main control board in the specific embodiment of the utility model;

[0015] Figure 3 The utility model discloses a structure principle schematic view of the EMG electric actuator main control board in the specific embodiment of the utility model;

[0016] Figure 4 The utility model discloses a structure principle schematic view of the EMG electric actuator main control board in the specific embodiment of the utility model;

[0017] Figure 5 The utility model discloses a structure principle schematic view of the EMG electric actuator main control board in the specific embodiment of the utility model;

[0018] Legend: 1, circuit bottom plate;2, mounting base;3, mounting female hole;4, card slot;5, elastic card;6, solid-state relay;7, contact pin;8, elastic card piece. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with the drawings and specific preferred embodiments, but it is not therefore that the protection scope of the utility model is limited.

[0020] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "side", "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the device or element indicated or implied to have a particular orientation, to be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0021] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of the indicated technical features, so the features with "first", "second" can be explicitly or implicitly include one or more features, in the description of the utility model, the meaning of "multiple" is two or more than two, unless there is a clear specific limitation.

[0022] Embodiment

[0023] As Figure 1 , Figure 2 and Figure 4 Indicated, the solid state relay fixing structure of the utility model is installed on the EMG electric actuator main control board.Specifically, the EMG electric actuator main control board includes circuit base plate 1, two installation bases 2 for connecting solid state relay 6 are arranged side by side on circuit base plate 1, a plurality of installation female holes 3 are arranged side by side on installation base 2, installation female hole 3 is matched with the contact pin 7 of solid state relay 6, and a plurality of elastic cards 5 are arranged in each installation female hole 3, and elastic card 5 promotes the contact pin 7 to resist the inner side of installation female hole 3.It is known that power board, display unit, control board, sensor interface module and other electronic elements are also arranged on circuit base plate 1, and the working principle of EMG electric actuator main control board is as shown in Figure 5 .

[0024] After assembly, elastic card 5 provides elastic abutment to contact pin 7, so that contact pin 7 abuts against the inner side of installation female hole 3, and contact pin 7 cannot be displaced in the width direction and thickness direction of installation female hole 3, therefore, contact pin 7 can be firmly limited in installation female hole 3, thereby greatly improving the plug-in force of solid state relay 6.

[0025] In the embodiment, by arranging elastic card 5 in installation female hole 3, the elastic force provided by elastic card 5 promotes the contact pin 7 of solid state relay 6 to abut against the inner side of installation female hole 3, which is conducive to improving the plug-in force of solid state relay 6, realizes that solid state relay 6 is detachably installed on circuit base plate 1, improves the convenience of maintaining solid state relay 6, and reduces the use cost of EMG electric actuator main control board.

[0026] As Figure 1 and Figure 4 Indicated, the four corners of installation base 2 are provided with clamping grooves 4, and the four corners of solid state relay 6 are provided with elastic clamping pieces 8, so that solid state relay 6 is stably installed on installation base 2.By adopting the form that elastic card 5 is arranged inside installation female hole 3, and the elastic clamping piece 8 of the four corners of solid state relay 6 is matched with the clamping groove 4 of the four corners of installation base 2, solid state relay 6 is firmly and reliably fixed on circuit base plate 1, and meanwhile, it is ensured that each contact pin 7 of solid state relay 6 is in good contact.

[0027] Furthermore, the end of the elastic retainer 8 is provided with a wedge-shaped retaining block. After the solid-state relay 6 is installed on the mounting base 2, the wedge-shaped retaining block engages with the bottom of the slot 4, which can restrict the movement of the contact 7 along the depth direction of the mounting female hole 3, thereby further improving the insertion and extraction force of the solid-state relay 6. When the solid-state relay 6 fails, it can be quickly replaced, avoiding damage to the main control board circuit and other electronic components.

[0028] In this embodiment, the elastic card 5 is made of beryllium copper alloy material, which has the advantages of strong elastic recovery ability, high structural strength, good electrical and thermal conductivity and good corrosion resistance, which is conducive to improving the service life of the circuit board 1.

[0029] like Figure 2 As shown, in this embodiment, four elastic cards 5 are evenly distributed within the mounting female hole 3. Each elastic card 5 has a W-shaped structure and is inserted into the mounting female hole 3 with its tip entering first and both ends following. The elastic card 5 has a simple structure, is easy to mold, and ensures a smooth fit between the elastic card 5 and the inner surface of the mounting female hole 3, improving the insertion firmness of the contact 7 within the mounting female hole 3. Figure 3 As shown, in other embodiments, the elastic card 5 can also adopt an irregular semi-circular structure. By setting hooks on both sides of the elastic card 5 and pre-reserving corresponding mounting holes on the side wall of the mounting female hole 3, the elastic card 5 can be fixed in the mounting female hole 3. The elastic card 5 can also be manufactured by integral molding and then installed into the mounting female hole 3.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A solid state relay fixing structure characterized by comprising: The application relates to a solid-state relay fixing structure, which comprises a mounting base (2) provided with a plurality of mounting female holes (3) side by side on the mounting base (2), the mounting female holes (3) being matched with pins (7) of a solid-state relay (6), and an elastic card (5) being arranged in the mounting female hole (3), the elastic card (5) urging the pin (7) to abut against the inner side of the mounting female hole (3).

2. The solid state relay fixing structure according to claim 1, characterized in that, The mounting base (2) is provided with a clamping groove (4) at each corner, and the clamping groove (4) is matched with an elastic clamping piece (8) at the four corners of the solid-state relay (6).

3. The solid state relay fixation structure according to claim 2, wherein The end of the elastic clamping piece (8) is provided with a wedge-shaped clamping block which is buckled and connected with the clamping groove (4).

4. The solid state relay fixing structure according to any one of claims 1 to 3, characterized in that, The elastic card (5) is prepared from beryllium copper alloy material.

5. The solid state relay fixing structure according to any one of claims 1 to 3, characterized in that, The elastic card (5) is in W shape or irregular semicircle shape.

6. An EMG electric actuator master control board, characterized by, The application further relates to a circuit board (1) provided with the solid-state relay fixing structure shown in any one of claims 1 to 5.

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