Power supply filter capable of reducing bad contact

Abstract

The utility model discloses a power supply filter capable of reducing bad contact, which comprises a power supply filter body and two groups of fixing assemblies, two binding posts are symmetrically arranged on one side of the power supply filter body, each fixing assembly comprises a shell and a limiting block, the shells are sleeved on the outer sides of the binding posts in a sliding manner, and the limiting blocks are arranged on the outer sides of the binding posts. The limiting block is fixed on the binding post, the outer wall of the limiting block is in sliding connection with the inner wall of the shell, a spring is fixed between one end of an inner cavity of the shell and the side wall of the limiting block, the spring is sleeved on the outer side of the binding post, and an extrusion cylinder is fixed at the other end of the inner cavity of the shell. According to the utility model, by arranging the fixing assembly, the spring, the extrusion cylinder and other structures, sufficient contact pressure can be ensured to be formed between the external connecting line and the binding post, the common poor contact problem in the traditional power supply filter is significantly reduced, the electrical stability of the power supply filter is improved, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to power filter technical field, concretely is a kind of power filter of reducing bad contact. BACKGROUND

[0002] In power electronics technology, power filter is widely used in power equipment, for eliminating high-frequency noise and interference in power supply, improve the stability of power system and the service life of equipment. However, existing power filter in installation process, especially in the process of connecting external cable and terminal post, often face the problem of poor contact. Specifically, when connecting cable, the traditional power filter, due to the insufficient contact pressure of terminal post and cable connection end, may cause poor contact, thereby causing unstable current or abnormal operation of equipment, and even may damage electrical equipment in serious case.

[0003] In addition, the conventional connection mode usually lacks convenient fixing structure, and the user needs to manually adjust the relative position of terminal post and cable connection end, which is tedious to operate, and since there is no stable limiting device, it may cause the loosening or falling off of cable connection end.

[0004] Therefore, the utility model provides a kind of power filter of reducing bad contact, by the structure such as the fixing assembly, connecting plate and limiting assembly etc. to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of power filter of reducing bad contact, solves the problem that the traditional power filter, when connecting cable, due to the insufficient contact pressure of terminal post and cable connection end, may cause poor contact, thereby causing unstable current or abnormal operation of equipment, and even may damage electrical equipment in serious case, and the conventional connection mode usually lacks convenient fixing structure, and the user needs to manually adjust the relative position of terminal post and cable connection end, which is tedious to operate, and since there is no stable limiting device, it may cause the loosening or falling off of cable connection end.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of power filter of reducing bad contact, including power filter body, the power filter body one side symmetry is provided with two terminal posts, further including:

[0007] Fixing assembly, the fixing assembly is provided with two groups, the fixing assembly includes shell and limiting block, the shell is slidably sleeved on the outer side of the terminal post, the limiting block is fixed on the terminal post, the limiting block outer wall and the shell inner wall are slidably connected, one end of the spring in the shell inner chamber and the limiting block side wall are fixed, the spring is sleeved on the outer side of the terminal post, the other end of the shell inner chamber is fixed with extrusion cylinder;

[0008] A connecting plate is fixed between the two housings, and a pull handle is fixed in the middle of the connecting plate;

[0009] Two sets of limiting assemblies are arranged on the sidewall of the power filter body, and the limiting assemblies are used for limiting the connecting plate.

[0010] Preferably, an installation groove is arranged on one side of the extrusion cylinder close to the limiting block, and a wire groove is arranged at the bottom of the installation groove.

[0011] Preferably, a through groove is arranged at the bottom of the housing corresponding to the position of the extrusion cylinder.

[0012] Preferably, the limiting assembly comprises an installation shaft, one end of the installation shaft is fixed with a knob, and the shaft body of the installation shaft is fixed with an installation plate.

[0013] The bottom wall of the installation plate is fixed with a blocking rod.

[0014] Preferably, a limiting hole is arranged on the connecting plate corresponding to the position of the limiting assembly.

[0015] Preferably, the housing, the limiting block and the extrusion cylinder are all made of insulating plastic material.

[0016] Advantages

[0017] The power filter provided by the utility model reduces bad contact. Compared with the prior art, the utility model has the following advantages:

[0018] (1) The power filter for reducing bad contact can ensure that sufficient contact pressure is formed between the external connecting wire and the terminal post, significantly reduces the common problem of bad contact in the traditional power filter, and improves the electrical stability of the power filter and the service life of the equipment.

[0019] (2) The power filter for reducing bad contact is provided with the connecting plate and the pull handle assembly, so that the installation process of the external connecting wire is more convenient, the user only needs to pull the pull handle to slide the housing outward, completes the installation or disassembly of the connecting wire, saves the complicated operation steps in the traditional way, and improves the operation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the external structure of the utility model;

[0021] Figure 2 is the fixed assembly and the connecting plate connection state structure of the utility model;

[0022] Figure 3 is the structure perspective view of the fixed assembly in the shell and terminal post separation state of the utility model;

[0023] Figure 4 is the half cut view of the fixed assembly of the utility model;

[0024] Figure 5 is the Figure 1 enlarged view of A in the figure.

[0025] In the figure, 1 is a power filter body; 2 is a terminal post; 3 is a fixed assembly; 31 is a shell; 32 is a limiting block; 33 is a spring; 34 is a extrusion cylinder; 4 is a connecting plate; 5 is a pull handle; 6 is a limiting hole; 7 is a limiting assembly; 71 is a mounting shaft; 72 is a mounting plate; 73 is a blocking rod; 74 is a knob; 8 is a through slot; 9 is a mounting slot; 10 is a wire passing groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Embodiment one:

[0028] Please refer to Figures 1-4 A power filter for reducing bad contact, comprising a power filter body 1, two terminal posts 2 are symmetrically arranged on one side of the power filter body 1, further comprising:

[0029] A fixed assembly 3, the fixed assembly 3 is provided with two groups, the fixed assembly 3 comprises a shell 31 and a limiting block 32, the shell 31 is slidably sleeved outside the terminal post 2, the limiting block 32 is fixed on the terminal post 2, the limiting block 32 is slidably connected between the outer wall and the inner wall of the shell 31, a spring 33 is fixed between one end of the inner cavity of the shell 31 and the side wall of the limiting block 32, the spring 33 is sleeved outside the terminal post 2, and the other end of the inner cavity of the shell 31 is fixed with an extrusion cylinder 34;

[0030] A connecting plate 4, the connecting plate 4 is fixed between the two shells 31, and a pull handle 5 is fixed in the middle of the connecting plate 4;

[0031] A limiting assembly 7, the limiting assembly 7 is provided with two groups, the limiting assembly 7 is arranged on the side wall of the power filter body 1, and the limiting assembly 7 is used for limiting the connecting plate 4.

[0032] The limiting block 32 is provided with a mounting slot 9 on one side close to the extrusion cylinder 34, and a wire passing groove 10 is formed in the bottom of the mounting slot 9.

[0033] The bottom of the shell 31 is provided with a through slot 8 corresponding to the position of the pressing cylinder 34.

[0034] The shell 31, the limiting block 32 and the pressing cylinder 34 are all made of insulating plastic material.

[0035] In the embodiment, the fixing assembly 3 is used to quickly install the external connecting wire on the terminal post 2, which is simple and convenient to operate. Meanwhile, the fixing assembly 3 after installation can be kept stable by the cooperation of the connecting plate 4 and the limiting assembly 7, so as to ensure that the external connecting wire will not be separated from the terminal post 2. When installing the external connecting wire, first, the limiting assembly 7 is removed from the limiting of the connecting plate 4, and then the pull handle 5 is pulled to drive the connecting plate 4 to move outward, so that the shell 31 moves outward until the pressing cylinder 34 is separated from the terminal post 2. At this time, the spring 33 is compressed under force, and the disc of the connecting end of the external connecting wire is sleeved on the terminal post 2 through the through slot 8. Then, the pull handle 5 is released, and the shell 31 is reset under the action of the spring 33, so that the pressing cylinder 34 extrudes the disc of the connecting end of the external connecting wire in the installation groove 9, thereby completing the installation of the external connecting wire.

[0036] Embodiment two:

[0037] Please refer to Figure 5 The embodiment provides a technical scheme based on the embodiment one: the limiting assembly 7 comprises an installation shaft 71, the installation shaft 71 is rotatably installed on the side wall of the power filter body 1, one end of the installation shaft 71 is fixedly provided with a knob 74, and the shaft body of the installation shaft 71 is fixedly provided with an installation plate 72.

[0038] The bottom wall of the installation plate 72 is fixedly provided with a blocking rod 73.

[0039] The connecting plate 4 is provided with a limiting hole 6 corresponding to the position of the limiting assembly 7.

[0040] In the embodiment, the limiting assembly 7 is used to limit the connecting plate 4, so as to keep the fixing assembly 3 stable after installation and ensure that the external connecting wire will not be separated from the terminal post 2. When it is needed to remove the limiting of the connecting plate 4, the knob 74 is rotated to drive the installation shaft 71 to rotate, and the installation shaft 71 drives the blocking rod 73 on the installation plate 72 to rotate to a horizontal state, so that the installation plate 72 and the blocking rod 73 can smoothly pass through the limiting hole 6.

[0041] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0042] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0043] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A power filter for reducing bad contact, comprising a power filter body (1) which is symmetrically provided with two terminals (2) on one side, characterized in that, Also include: The fixing assembly (3) is provided with two groups, the fixing assembly (3) includes shell (31) and limiting block (32), the shell (31) is sleeved on the outside of the binding post (2), the limiting block (32) is fixed on the binding post (2), the limiting block (32) outer wall and the inner wall of the shell (31) are connected in sliding mode, the spring (33) is fixed between the inner chamber one end of the shell (31) and the side wall of the limiting block (32), the spring (33) is sleeved on the outside of the binding post (2), the extrusion cylinder (34) is fixed in the other end of the inner chamber of the shell (31); The connecting plate (4) is fixed between the two shells (31), and the connecting plate (4) is fixed with a pull handle (5) in the middle; The limiting assembly (7) is provided with two groups, the limiting assembly (7) is installed on the side wall of the power filter body (1), and the limiting assembly (7) is used for limiting the connecting plate (4).

2. A poor contact reducing power filter according to claim 1, characterized in that The limiting block (32) is provided with a mounting groove (9) on one side close to the extrusion cylinder (34), and the bottom of the mounting groove (9) is provided with a wire groove (10).

3. A poor contact reducing power filter according to claim 2, characterized in that The bottom of the shell (31) is provided with a through groove (8) corresponding to the position of the extrusion cylinder (34).

4. A poor contact reducing power filter according to claim 1, characterized in that, The limiting assembly (7) includes a mounting shaft (71), the mounting shaft (71) is rotatably installed on the side wall of the power filter body (1), one end of the mounting shaft (71) is fixed with a knob (74), and the shaft body of the mounting shaft (71) is fixed with a mounting plate (72). The bottom wall of the mounting plate (72) is fixed with a stop rod (73).

5. A poor contact reducing power filter according to claim 4, characterized in that The connecting plate (4) is provided with a limiting hole (6) corresponding to the position of the limiting assembly (7).

6. A poor contact reducing power filter according to claim 1, wherein The shell (31), the limiting block (32) and the extrusion cylinder (34) are all made of insulating plastic material.

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