Power amplifier power panel with overvoltage protection function

Abstract

The utility model discloses a power amplifier power panel with an overvoltage protection function, which relates to the technical field of power panel overvoltage protection, and comprises a power panel main body, the edge of the power panel main body is fixedly connected with a protective shell, and the two sides of the protective shell are movably connected with lifting assemblies. The lifting assembly comprises a positioning plate, an electric push rod, a connecting block, a double-end rotating rod and a movable block, the lifting assembly capable of changing the position of the power panel main body is arranged at the edge of the power panel main body, and the electric push rod in the lifting assembly is connected with a circuit in the power panel main body in series; when the voltage in the power panel main body suddenly rises, the electric push rod quickly pushes the connection block, and the height of the movable block is changed by using the double-end rotating rod, so that the power panel main body is separated from the wiring board, the purposes of cutting off a circuit and separating the power panel main body from an overvoltage source are achieved, and the equipment is prevented from being impacted by overhigh voltage.

Description

TECHNICAL FIELD

[0001] The utility model relates to power panel overvoltage protection technical field especially relates to a kind of power amplifier power panel with overvoltage protection function. BACKGROUND

[0002] Power amplifier power panel is an important component in power amplifier, mainly responsible for providing stable, suitable DC power for power amplifier circuit, to ensure that power amplifier can work normally and play good performance.

[0003] As the disclosure No. CN202121318U discloses a kind of overvoltage protection module of direct current circuit, including temperature fuse, varistor and gas discharge tube, temperature fuse, varistor and gas discharge tube three are in series in a module in order;Temperature fuse is as a first pin at the end;Temperature fuse and varistor are as a second pin at the junction;Varistor and gas discharge tube are as a third pin at the junction;The end of gas discharge tube is as a fourth pin.Temperature fuse (TCO), varistor (MOV) and gas discharge tube (GDT) are integrated into one body.

[0004] But in prior art, when load in power system suddenly changes and the momentary voltage impact after power grid fault repair, will make input voltage exceed the rated input voltage range of power panel, will lead to power panel overvoltage, and various electronic components on power panel have its rated voltage range, overvoltage will make these components withstand voltage stress beyond its bearing capacity, cause permanent damage, so that power panel cannot work normally. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the prior art in the input voltage exceeds the rated input voltage range of power panel, will lead to power panel overvoltage, and various electronic components on power panel have its rated voltage range, overvoltage will make these components withstand voltage stress beyond its bearing capacity, cause permanent damage, so that power panel cannot work normally Problem, and a kind of power amplifier power panel with overvoltage protection function is proposed.

[0006] To achieve the above object, the utility model adopts the following technical scheme:A kind of power amplifier power panel with overvoltage protection function, including power panel main body, the edge of the power panel main body is fixedly connected with protection shell, the two sides of the protection shell are movably connected with lifting assembly;

[0007] The lifting assembly comprises a positioning plate, an electric push rod, a connecting block, a double-head rotating rod and a movable block, the movable block is slidably connected in the interior of the positioning plate, one end of the double-head rotating rod is rotatably connected with one end of the movable block, one end of the connecting block is fixedly connected with one end of the piston rod of the electric push rod, the electric push rod is arranged in a horizontal state, the positioning plate is arranged in a vertical state, a wiring board is inserted into the bottom of the power panel body, and a filling plate is arranged between the power panel body and the wiring board.

[0008] Preferably, the bottom of the movable block is fixedly provided with a supporting piece, and the protective shell is overlapped on the surface of the supporting piece.

[0009] Preferably, one side of the movable block is provided with a groove, and the groove is located at the joint of the movable block and the positioning plate.

[0010] Preferably, the top of the movable block is fixedly provided with a limiting piece, and the limiting piece is overlapped on the upper surface of the protective shell.

[0011] Preferably, the joint of the positioning plate and the movable block is provided with a guide sliding groove, and the shape of the guide sliding groove is matched with the shape of the movable block and the limiting piece.

[0012] Preferably, the limiting piece and the supporting piece are located in the interior of the guide sliding groove.

[0013] Preferably, the two positioning plates are fixedly connected with a protective frame, and the protective frame is located at the edge of the protective shell.

[0014] Compared with the prior art, the utility model has the advantages and positive effects that:

[0015] 1、in the utility model, through setting a lifting assembly that can change the position of the power panel body at the edge of the power panel body, the electric push rod in the lifting assembly is connected with the circuit in the power panel body, when the voltage in the power panel body suddenly rises, the electric push rod quickly pushes the connecting block, the height of the movable block is changed by the double-head rotating rod, the power panel body is separated from the wiring board, the purpose of cutting off the circuit and separating the power panel body and the overvoltage source is achieved, so that the equipment is prevented from being impacted by the overhigh voltage.

[0016] 2、in the utility model, through setting the guide sliding groove and the groove, the movable plate can be embedded in the positioning plate, and the supporting piece and the limiting piece that extend out can limit the position of the protective shell, so that the stability of the power panel body is ensured, and the moving route of the power panel body can be determined, so that the problem of misplacement of the power panel body is avoided. ACCURACY OF DRAWINGS

[0017] Figure 1The utility model provides a kind of stereo structure schematic diagram of power amplifier power panel with overvoltage protection function.

[0018] Figure 2 The utility model provides a kind of side view of power amplifier power panel with overvoltage protection function.

[0019] Figure 3 The utility model provides a kind of structure split schematic diagram of power amplifier power panel with overvoltage protection function.

[0020] Figure 4 The utility model provides a kind of connecting and structure schematic diagram of link block and movable block of power amplifier power panel with overvoltage protection function.

[0021] Legend: 1, protective shell; 2, terminal block; 3, lifting assembly; 4, filling plate; 5, power panel main body; 31, positioning plate; 32, protection frame; 33, electric push rod; 34, link block; 35, double-head rotating rod; 36, movable block; 37, limit sheet; 38, support sheet; 39, recess; 310, guide chute. Specific embodiments

[0022] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples.

[0023] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, therefore, the utility model is not limited to the specific embodiments disclosed in the following disclosure.

[0024] Example one: as Figure 1 , Figure 2 , Figure 3 And Figure 4 The utility model provides a kind of power amplifier power panel with overvoltage protection function, including power panel main body 5, the edge of power panel main body 5 is fixedly connected with protective shell 1, the both sides of protective shell 1 are movably connected with lifting assembly 3;

[0025] The lifting assembly 3 comprises a positioning plate 31, an electric push rod 33, a connecting block 34, a double-head rotating rod 35 and a movable block 36. The movable block 36 is slidingly connected to the inside of the positioning plate 31. One end of the double-head rotating rod 35 is rotatably connected to one end of the movable block 36. One end of the connecting block 34 is fixedly connected to one end of the piston rod of the electric push rod 33. The electric push rod 33 is arranged in a horizontal state. The positioning plate 31 is arranged in a vertical state. The bottom of the power panel body 5 is inserted with the wiring board 2. The power panel body 5 and the wiring board 2 are provided with the filling plate 4 therebetween. The two positioning plates 31 are fixedly connected with the protection frame 32 which is located at the edge of the protection shell 1.

[0026] The specific settings and effects of the embodiment will be described below. The positioning plate 31 is distributed at both ends of the protection shell 1 and connected by the protection frame 32 between the two positioning plates 31 to ensure the structural stability of the lifting assembly 3. During installation, the lifting assembly 3 can be directly deployed into the equipment shell used by the power panel body 5. The positioning plate 31 and the protection frame 32 can be attached to the inner wall of the equipment shell. Then during actual use, the power panel body 5 is inserted into the wiring board 2 to ensure normal current flow. The filling plate 4 between the wiring board 2 and the power panel body 5 can protect the power panel body 5.

[0027] When the input voltage exceeds the rated input voltage range of the power panel body 5, the electric push rod 33 will quickly push the connecting block 34 to move the movable block 36 along the direction of the positioning plate 31 to change the height of the power panel body 5. In this process, the double-head rotating rod 35 will rotate from an inclined state to a nearly vertical state, so that the power panel body 5 is separated from the wiring board 2 to cut off the circuit and separate the power panel body 5 from the overvoltage source, thereby avoiding the impact of high voltage on the equipment. The electric push rod 33 is a pen-type electric push rod.

[0028] Embodiment two: Figure 3 and Figure 4 As shown in the drawings, the bottom of the movable block 36 is fixedly provided with a support piece 38, and the protection shell 1 is overlapped on the surface of the support piece 38. A groove 39 is formed in one side of the movable block 36 and located at the intersection of the movable block 36 and the positioning plate 31. A limiting piece 37 is fixedly installed on the top of the movable block 36 and overlapped on the upper surface of the protection shell 1. A guide sliding groove 310 is formed at the intersection of the positioning plate 31 and the movable block 36. The shape of the guide sliding groove 310 is matched with the shape of the movable block 36 and the limiting piece 37. The limiting piece 37 and the support piece 38 are located in the inside of the guide sliding groove 310.

[0029] The effect achieved by the whole embodiment is that the movable block 36 limits the protective shell 1 through the supporting sheet 38 and the limiting sheet 37, so as to ensure the stability of the protective shell 1, the inside of the positioning plate 31 is provided with the movable block 36 for accommodating the guide sliding groove 310, and the side of the movable block 36 is provided with the groove 39, the shapes of the groove 39 and the guide sliding groove 310 are both L-shaped, so as to ensure that the movable block 36 cannot be separated from the positioning plate 31.

[0030] The use method and working principle of the device are as follows: the movable block 36 limits the protective shell 1 through the supporting sheet 38 and the limiting sheet 37, the positioning plate 31 is distributed at two ends of the protective shell 1, the two positioning plates 31 are connected through the protective frame 32, during installation, the positioning plate 31 and the protective frame 32 can be directly arranged in the equipment shell used by the power board body 5, then during actual use, the power board body 5 is inserted in the junction board 2, so as to ensure that the current can normally flow.

[0031] When the input voltage exceeds the rated input voltage range of the power board body 5, the electric push rod 33 rapidly pushes the connecting block 34, the connecting block 34 is used to push the movable block 36 to move along the direction of the positioning plate 31, the groove 39 and the guide sliding groove 310 can determine the moving route of the movable block 36, so that the power board body 5 is separated from the junction board 2, the purpose of cutting off the circuit and separating the power board body 5 from the overvoltage source is achieved, so as to avoid that the equipment is impacted by the overhigh voltage.

[0032] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiment still belongs to the protection scope of the present application.

Claims

1. A power amplifier power panel with overvoltage protection function, comprising a power panel main body (5), characterized in that: The edge of the power panel body (5) is fixedly connected with a protective shell (1), and the two sides of the protective shell (1) are movably connected with lifting assemblies (3); The lifting assembly (3) comprises a positioning plate (31), an electric push rod (33), a connecting block (34), a double-head rotating rod (35) and a movable block (36), the movable block (36) is slidably connected in the interior of the positioning plate (31), one end of the double-head rotating rod (35) is rotatably connected with one end of the movable block (36), one end of the connecting block (34) is fixedly connected with one end of the piston rod of the electric push rod (33), the electric push rod (33) is arranged in a horizontal state, the positioning plate (31) is arranged in a vertical state, the bottom of the power panel body (5) is inserted with a wiring board (2), and the filling plate (4) is arranged between the power panel body (5) and the wiring board (2).

2. The power amplifier power panel with overvoltage protection function according to claim 1, characterized in that: The bottom of the movable block (36) is fixedly provided with a supporting piece (38), and the protective shell (1) is overlapped on the surface of the supporting piece (38).

3. The power amplifier power panel with overvoltage protection function according to claim 1, characterized in that: The side of the movable block (36) is provided with a groove (39), and the groove (39) is located at the intersection of the movable block (36) and the positioning plate (31).

4. The power amplifier power panel with overvoltage protection function according to claim 1, characterized in that: The top of the movable block (36) is fixedly provided with a limiting piece (37), and the limiting piece (37) is overlapped on the upper surface of the protective shell (1).

5. The power amplifier power panel with overvoltage protection function according to claim 4, characterized in that: The intersection of the positioning plate (31) and the movable block (36) is provided with a guide sliding groove (310), and the shape of the guide sliding groove (310) is matched with the shapes of the movable block (36) and the limiting piece (37).

6. The power amplifier power panel with overvoltage protection function according to claim 4, characterized in that: The limiting piece (37) and the supporting piece (38) are located in the interior of the guide sliding groove (310).

7. The power amplifier power panel with overvoltage protection function according to claim 1, characterized in that: Two positioning plates (31) are fixedly connected with a protective frame (32), and the protective frame (32) is located at the edge of the protective shell (1).

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