Switching power supply with terminal anti-drop structure

Abstract

The utility model is applicable to the technical field of switching power supplies, and provides a switching power supply with a terminal anti-drop structure, which comprises an outer shell and a cover plate, the two side walls of the outer shell close to the cover plate are both provided with a limit groove I, the internal size of the limit groove I is matched with the external size of the cover plate, and the limit groove I is provided with a terminal anti-drop structure. Limiting plates are fixedly connected to the side walls of the two first limiting grooves. According to the utility model, the first limiting groove, the cover plate, the mounting grooves, the limiting plate, the non-slip mats, the dovetail grooves, the non-slip blocks and the clamping grooves are arranged, the three groups of mounting grooves and clamping grooves are semicircular and symmetrically arranged, so that wiring terminals can be conveniently inserted, and the non-slip mats and the non-slip blocks are made of rubber and have rough surfaces, so that the frictional resistance of the surface of a cable can be increased; and the internal size of the limiting groove I is matched with the external size of the cover plate, and the external size of the limiting plate is matched with the internal size of the limiting groove II, so that the convenience and the stability of movement of the cover plate are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of switching power supplies, and in particular relates to a switching power supply with a terminal anti-dropping structure. Background Art

[0002] Switching power supply, also known as switching power supply, switching converter, is a high-frequency power conversion device, a type of power supply. Its function is to convert a voltage level into the voltage or current required by the user through different forms of architecture. The input of the switching power supply is mostly AC power (such as mains) or DC power, and the output is mostly equipment that requires DC power, such as personal computers, and the switching power supply converts the voltage and current between the two. With the rapid development of power electronics technology, power electronic equipment has become increasingly closely related to people's work and life, and electronic equipment cannot do without a reliable power supply, which has promoted the rapid development of switching power supply technology.

[0003] When using an existing switching power supply, the terminals of the power cord need to be plugged into the inside of the switching power supply in sequence and connected to the wiring terminals. Due to the low connection strength of the wire wiring terminals, the wire wiring terminals may fall off under the action of external force, thereby affecting the use of the switching power supply. Utility Model Content

[0004] The utility model provides a switching power supply with a terminal anti-dropping structure, aiming to solve the problem that when using the existing switching power supply, the terminals of the power cord need to be inserted into the inside of the switching power supply in sequence and connected with the wiring terminals. Since the connection strength of the wire wiring terminals is low, the wire wiring terminals may fall off under the action of external force, thereby affecting the use of the switching power supply.

[0005] The utility model is implemented as follows: a switching power supply with a terminal anti-detachment structure comprises an outer shell and a cover plate, wherein two side walls of the outer shell close to the cover plate are provided with a limiting groove 1, the inner dimensions of the limiting groove 1 are adapted to the outer dimensions of the cover plate, the side walls of the two limiting grooves 1 are fixedly connected to limiting plates, the inner portions of the cover plate close to the two limiting plates are provided with a limiting groove 2, the inner dimensions of the limiting groove 2 are adapted to the outer dimensions of the limiting plates, three installation grooves are symmetrically provided at the bottom end of the outer shell, the inner portions of the three installation grooves are all clamped with anti-slip pads, a dovetail groove is provided at the bottom end of the cover plate close to the installation groove, an anti-sliding block is installed inside the dovetail groove, and the anti-sliding block is symmetrically provided with clamping grooves close to the bottom end of the installation groove.

[0006] Preferably, the outer shell is made of plastic, and a second installation groove is provided inside the outer shell. The second installation groove is connected to the other installation grooves, and a circuit board is installed inside the second installation groove to facilitate the installation and protection of the circuit board.

[0007] Preferably, a plurality of heat dissipation holes are symmetrically provided on the side walls of the outer shell near the two limiting grooves 1 to facilitate heat dissipation of the switching power supply.

[0008] Preferably, the cover plate is provided with a mounting groove 1 inside the two limiting plates, a plug-in rod is inserted inside the mounting groove 1, and a baffle is sleeved on the outer surface of the plug-in rod near the mounting groove 1 to limit the position of the plug-in rod.

[0009] Preferably, both of the two limiting plates are provided with holes on their outer surfaces close to the plug-in rods, the two holes are symmetrically distributed, and the inner dimensions of the holes are matched with the outer dimensions of the plug-in rods, thereby achieving the limitation of the cover plate.

[0010] Preferably, the outer surfaces of the two plug-in rods close to the top of the baffle are both wound with springs, and the top ends of the springs are both in contact with the inner bottom end of the first mounting groove, thereby improving the stability of the plug-in rods.

[0011] Preferably, the anti-skid pad and the card slot are both made of rubber material with a rough surface, which increases the friction resistance.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] Firstly, by setting a limit groove 1, a cover plate, an installation groove, a limit plate, an anti-skid pad, a dovetail groove, an anti-sliding block and a card slot, the three groups of installation grooves and card slots are all semicircular and symmetrically opened for convenient plugging in of wiring terminals. The anti-skid pad and the anti-sliding block are both made of rubber with a rough surface, which can increase the friction resistance on the surface of the cable, thereby improving the stability of terminal installation. The internal dimensions of the limit groove 1 are matched with the external dimensions of the cover plate, and the external dimensions of the limit plate are matched with the internal dimensions of the limit groove 2, thereby improving the convenience and stability of the movement of the cover plate; secondly, by setting a plug-in rod, an installation groove 1, a spring, a baffle and a hole slot, when the cover plate is moved to the bottom end position of the outer shell, when the two plug-in rods are both plugged into the inside of the hole slot, the displacement of the cover plate can be limited, thereby improving the stability of the cover plate card connection limit, and the elastic force of the spring acting on the top of the baffle can improve the stability of the plug-in rod plug-in. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0016] Figure 3 The utility model Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4It is a schematic diagram of the side cross-sectional structure of the cover plate of the utility model;

[0018] Figure 5 It is a front view structural schematic diagram of the outer shell of the utility model.

[0019] In the figure: 1. outer shell; 2. limit slot 1; 3. cover plate; 4. mounting slot; 5. plug-in rod; 6. limit plate; 7. heat dissipation hole; 8. anti-skid pad; 9. dovetail groove; 10. anti-sliding block; 11. card slot; 12. mounting slot 1; 13. limit slot 2; 14. mounting slot 2; 15. spring; 16. baffle; 17. hole slot. DETAILED DESCRIPTION

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0021] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0022] See also Figure 1-5The embodiment of the utility model is as follows: a switching power supply with a terminal anti-drop structure, comprising an outer shell 1 and a cover plate 3, two side walls of the outer shell 1 close to the cover plate 3 are provided with a limiting groove 2, and the side walls of the outer shell 1 close to the two limiting grooves 2 are symmetrically provided with a plurality of heat dissipation holes 7, which are convenient for heat dissipation of the switching power supply, and the internal dimensions of the limiting groove 2 are adapted to the external dimensions of the cover plate 3, and the side walls of the two limiting grooves 2 are fixedly connected to the limiting plates 6, and the limiting plates 6 and the outer shell 1 are integrally injection molded, and the inner parts of the cover plate 3 close to the two limiting plates 6 are provided with limiting grooves 2 13, and the inner dimensions of the limiting grooves 2 13 are adapted to the external dimensions of the limiting plates 6, so as to realize the sliding limit of the cover plate 3, and three mounting grooves 4 are symmetrically provided at the bottom end of the outer shell 1, and the outer shell 1 is made of plastic material, and the outer A second mounting groove 14 is provided inside the shell 1, and the second mounting groove 14 is connected with the mounting groove 4. A circuit board is installed inside the second mounting groove 14 to control the connectivity of the line switch, which is convenient for the installation and protection of the circuit board. Anti-skid pads 8 are clamped inside the three mounting grooves 4. A dovetail groove 9 is provided at the bottom of the cover plate 3 near the mounting groove 4. An anti-sliding block 10 is installed inside the dovetail groove 9. The anti-sliding block 10 is symmetrically provided with a card slot 11 near the bottom of the mounting groove 4. The card slot 11 and the mounting groove 4 are both semicircular and symmetrically distributed, which is convenient for clamping cables. The anti-skid pad 8 and the card slot 11 are made of rubber with a rough surface, which can increase the friction resistance of the cable surface. The cable is a line for power transmission. This is a prior art and will not be repeated here, thereby avoiding the movement of the cable and affecting the stability of the installation of the terminal block at the end of the cable.

[0023] The cover plate 3 is provided with an installation groove 12 inside the two limit plates 6, and a plug-in rod 5 is inserted inside the installation groove 12. A baffle 16 is sleeved on the outer surface of the plug-in rod 5 near the installation groove 12 to limit the plug-in rod 5. The outer surfaces of the two limit plates 6 near the plug-in rod 5 are provided with hole grooves 17. The two hole grooves 17 are symmetrically distributed. The internal dimensions of the hole grooves 17 are adapted to the external dimensions of the plug-in rod 5 to limit the cover plate 3. The outer surfaces of the two plug-in rods 5 near the top of the baffle 16 are wound with springs 15. The top ends of the springs 15 abut against the inner bottom ends of the installation grooves 12, which improves the plug-in stability of the plug-in rod 5. When the cover plate 3 moves to the bottom end position of the outer shell 1, the two plug-in rods 5 are plugged into the inside of the hole grooves 17, which can limit the displacement of the cover plate 3, thereby improving the stability of the cover plate 3 clamping limit. The elastic force of the spring 15 acts on the top end of the baffle 16 to improve the plug-in stability of the plug-in rod 5.

[0024] Working principle: When using this switching power supply with a terminal anti-detachment structure, the operator first installs the circuit board inside the second installation slot 14 by bolts to control the connection of the power switch. The circuit board is a prior art and will not be described in detail here. Then, the cables installed with wiring terminals are clamped in the three installation slots 4 in turn. The cables are power transmission lines. This is a prior art and will not be described in detail here. The installation slot 4 and the clamping slot 11 are both semicircular and symmetrically opened to facilitate the insertion of wiring terminals. The anti-slip pad 8 and the anti-sliding block 10 are both made of rubber with a rough surface, which can increase the friction resistance of the cable surface inside the installation slot 4 and the clamping slot 11, thereby improving the stability of the terminal installation and preventing the cable from falling off due to force. The internal dimensions of the limit slot 1 2 are compatible with the external dimensions of the cover plate 3, and the external dimensions of the limit plate 6 are compatible with the internal dimensions of the limit slot 2 13, thereby improving the convenience and stability of the sliding of the cover plate 3.

[0025] Secondly, when the sliding cover plate 3 is moved to the bottom end position of the outer shell 1, the two plug-in rods 5 are both plugged into the inside of the hole groove 17, which can limit the displacement of the cover plate 3, thereby improving the stability of the cover plate 3's clamping limit. The elastic force of the spring 15 acts on the top of the baffle 16 to improve the plug-in stability of the plug-in rod 5. When the terminal block is aged and needs to be replaced, the operator can pull up the plug-in rod 5 in turn to make the two plug-in rods 5 withdraw from the inside of the hole groove 17 to facilitate the sliding cover plate 3 to leak out of the installation groove 2 14 to facilitate the replacement of the cable terminal block.

[0026] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0027] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0028] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0029] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A switching power supply with a terminal anti-drop structure, characterized in that: The invention comprises an outer shell (1) and a cover plate (3): the outer shell (1) is provided with a limiting groove (2) on two side walls close to the cover plate (3), the internal dimensions of the limiting groove (2) are matched with the external dimensions of the cover plate (3), the side walls of the two limiting grooves (2) are fixedly connected with limiting plates (6), the cover plate (3) is provided with a limiting groove (13) inside the two limiting plates (6), the internal dimensions of the limiting groove (13) are matched with the external dimensions of the limiting plates (6), the bottom end of the outer shell (1) is symmetrically provided with three mounting grooves (4), the inside of the three mounting grooves (4) are all clamped with anti-skid pads (8), the cover plate (3) is provided with a dovetail groove (9) at the bottom end position close to the mounting groove (4), the inside of the dovetail groove (9) is installed with an anti-sliding block (10), and the anti-sliding block (10) is symmetrically provided with a clamping groove (11) near the bottom end of the mounting groove (4).

2. A switching power supply with a terminal anti-drop structure according to claim 1, characterized in that: The outer shell (1) is made of plastic material. A second mounting groove (14) is provided inside the outer shell (1). The second mounting groove (14) is connected to the mounting groove (4). A circuit board is installed inside the second mounting groove (14).

3. A switching power supply with a terminal anti-drop structure according to claim 2, characterized in that: A plurality of heat dissipation holes (7) are symmetrically provided on the side walls of the outer shell (1) close to the two limiting grooves (2).

4. A switching power supply with a terminal anti-drop structure according to claim 1, characterized in that: The cover plate (3) is provided with a mounting groove (12) inside the two limit plates (6), a plug-in rod (5) is inserted inside the mounting groove (12), and a baffle (16) is sleeved on the outer surface of the plug-in rod (5) near the mounting groove (12).

5. A switching power supply with a terminal anti-drop structure according to claim 4, characterized in that: The outer surfaces of the two limiting plates (6) close to the plug-in rod (5) are both provided with holes (17), the two holes (17) are symmetrically distributed, and the inner dimensions of the holes (17) are both compatible with the outer dimensions of the plug-in rod (5).

6. A switching power supply with a terminal anti-drop structure according to claim 5, characterized in that: The outer surfaces of the two plug-in rods (5) close to the top ends of the baffles (16) are both wound with springs (15), and the top ends of the springs (15) are both in contact with the inner bottom ends of the first mounting groove (12).

7. A switching power supply with a terminal anti-drop structure according to claim 1, characterized in that: The anti-slip pad (8) and the card slot (11) are both made of rubber material and have a rough surface.

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