Direct-current operating power supply

Abstract

The utility model provides a direct-current operating power supply, and aims to solve the technical problems that a cable on a conventional direct-current operating power supply is insufficient in connection strength and easy to fall off. The direct current operation power supply comprises a power supply main body which is internally provided with a wiring part, the power supply main body is provided with a plug wire hole, and the plug wire hole is communicated with the wiring part; the rotor is rotationally arranged in the wiring part, a rotating shaft of the rotor is perpendicular to the length direction of the wire plugging hole, and a sliding hole perpendicular to the axis of the rotor is formed in the rotor; the pressing rod is arranged in the sliding hole in a sliding mode, and the two ends of the pressing rod are each in an L shape; the two driving blocks are arranged on the inner wall of the wiring part, each driving block is provided with an arc-shaped driving surface, and the distance between the driving surface and the axis of the rotor is linearly increased; wherein the two pressing rods are arranged on the rotor in a sliding mode, and the top ends of the pressing rods can slide on the driving face. The DC operation power supply has the advantages of being simple, rapid and reliable in cable connection.

Description

Technical Field

[0001] The utility model relates to electric power equipment, in particular to a direct current operating power supply. Background Art

[0002] The main function of the DC operating power supply system in the power system is to supply power to the system equipment through the DC bus. When the AC power grid is normal, the AC power grid provides power to the DC bus after conversion; when the AC power grid loses power, the battery pack in the DC operating power supply system provides power to the DC bus.

[0003] The traditional wiring method of DC operating power supply is to connect the cable to the terminal post by screws. The connection strength is not enough and the cable is prone to fall off. Utility Model Content

[0004] Aiming at the technical problem that the cable connection strength of the existing DC operating power supply is not enough and is easy to fall off, the utility model provides a DC operating power supply, which has the advantages of simple, fast and reliable cable connection.

[0005] The technical solution of the utility model is:

[0006] A DC operating power supply, comprising:

[0007] A power source body, which has a wiring portion inside, and the power source body is provided with a wire insertion hole, and the wire insertion hole is connected to the wiring portion;

[0008] A rotor is rotatably arranged in the wiring part, and its rotation axis is perpendicular to the length direction of the wire insertion hole. The rotor is provided with a sliding hole perpendicular to its axis;

[0009] A pressure rod is slidably disposed in the sliding hole, and both ends of the pressure rod are L-shaped;

[0010] Two driving blocks are arranged on the inner wall of the connection part, the driving block has an arc-shaped driving surface, and the distance between the driving surface and the rotor axis increases linearly;

[0011] Wherein, two pressure rods are slidably provided on the rotor, and the top ends of the pressure rods can slide on the driving surface.

[0012] Optionally, the rotor has four sliding holes, and the pressure rod is a square-shaped structure;

[0013] One end of the driving surface is close to the top of the rotor, and the distance between the end of the driving surface and the axis of the rotor is less than or equal to the distance between the top end of the pressure rod and the axis of the rotor;

[0014] The other end of the driving surface is close to the side of the rotor, and the distance between this end of the driving surface and the axis of the rotor is greater than the distance between the top end of the pressure rod and the axis of the rotor.

[0015] Optionally, a limiting ring is provided on a section of the pressure rod located above the rotor, and a size of the limiting ring is larger than a size of the sliding hole.

[0016] Optionally, a slide groove is provided on the side wall of the wiring portion, and the length direction of the slide groove is parallel to the axis direction of the rotor;

[0017] An L-shaped limiting block is slidably arranged in the slide groove, and one end of the limiting block is located in the wiring portion.

[0018] Optionally, a slide plate is provided on the other end of the limit block, the slide plate is slidably arranged outside the power supply body, and the length of the slide plate is greater than the length of the slide groove, and the middle part of the slide plate has a driving plate vertically connected thereto.

[0019] Optionally, the bottom surface of the rotor has two concave clamping parts.

[0020] Optionally, a connecting plate is provided between the two pressure rods, and the connecting plate is connected to the bottom ends of the pressure rods;

[0021] A spring is arranged between the middle part of the connecting plate and the rotor.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] A wiring part is provided in the main body of the power supply. The wire is inserted into the wiring part through the wire insertion hole, and the cable is located below the rotor and between the bottom end of the pressure rod and the rotor. By rotating the rotor, the pressure rod drives the end of the cable to bend. At this time, the top end of the pressure rod contacts the driving surface and slides on the driving surface. The driving surface causes the pressure rod to slide in the sliding hole, so that the bottom end of the pressure rod presses the bottom end of the cable and pulls the cable to move into the wiring part until the bottom end of the pressure rod completely compacts the cable, making the rotor unable to rotate.

[0024] By rotating the rotor, the pressure rod presses the end of the cable tightly to achieve fast and convenient cable connection. At the same time, the cable is bent by the rotor and the pressure rod, and the cable is fixed by the friction between the cable, the rotor and the pressure rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a schematic diagram of the external structure of the wiring part;

[0028] Figure 3 Schematic diagram of the internal structure of the wiring part;

[0029] Figure 4 It is a schematic diagram of the front structure of the wiring part. DETAILED DESCRIPTION

[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0033] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0034] Example:

[0035] See also Figure 1-Figure 4 A DC operating power supply includes a power supply body 1, a rotor 2, a pressure rod 3 and a driving block 4. Specifically, a wiring part 5 is provided inside the power supply body 1, and the wiring part 5 is a spatial structure. A wire insertion hole 6 is provided on the power supply body 1, and the wire insertion hole 6 connects the wiring part 5 with the outside of the power supply body 1.

[0036] The rotor 2 is rotatably arranged in the wiring part 5, and the rotation axis of the rotor 2 is perpendicular to the length direction of the wire insertion hole 6. At the same time, one end of the rotor 2 passes through the power supply body 1 and is connected to a circular hand wheel, through which the rotor 2 can be directly rotated. One side of the rotor 2 has a plane, which is parallel to the bottom surface of the wiring part 5 and is located at the bottom of the rotor 2. At the same time, the distance between the plane and the bottom of the wiring part 5 is greater than the distance between the top of the wire insertion hole 6 and the bottom of the wiring part 5, so that after the cable is inserted into the wiring part 5 from the wire insertion hole 6, the cable is located below the rotor 2.

[0037] Two groups of sliding holes are arranged on the rotor 2, all of which penetrate both sides of the rotor 2, and the length direction of the sliding holes is perpendicular to the plane on the rotor 2. In addition, a metal sheet for conducting electricity is arranged on the rotor 2, and the metal sheet can contact the cable.

[0038] A pressure rod 3 is arranged in each group of sliding holes, and both ends of the pressure rod 3 are L-shaped structures. The length of the pressure rod 3 is greater than the width of the rotor 2, so that a gap can be formed between the bottom end of the pressure rod 3 and the plane on the rotor 2, and the size of the gap is greater than or equal to the size of the wiring hole. At the same time, there is also a gap between the top end of the pressure rod 3 and the top of the rotor 2.

[0039] There are two driving blocks 4 arranged on the inner wall of the wiring portion 5, and each of the two driving blocks 4 has an arc-shaped driving surface, the distance between the driving surface and the axis of the rotor 2 increases linearly, and the minimum distance between the driving surface and the axis of the rotor 2 is smaller than the distance between the top of the pressure rod 3 and the axis of the rotor 2, and the maximum distance between the driving surface and the axis of the rotor 2 is greater than the distance between the top of the pressure rod 3 and the axis of the rotor 2. Generally, one end of the above-mentioned driving surface is close to the top of the rotor 2, and the distance between this end of the driving surface and the axis of the rotor 2 is the smallest. The other end of the driving surface is close to the side of the rotor 2, and the distance between this end of the driving surface and the axis of the rotor 2 is the largest. The central angle of the arc structure corresponding to the entire driving surface is less than or equal to 90°.

[0040] During operation, the wire is inserted into the wiring part 5 through the wire insertion hole 6, and the cable is located below the rotor 2 and between the bottom end of the pressure rod 3 and the rotor 2. The rotor 2 is rotated so that the pressure rod 3 drives the end of the cable to bend. At this time, the top end of the pressure rod 3 contacts the driving surface and slides on the driving surface, and the driving surface causes the pressure rod 3 to slide in the sliding hole, so that the bottom end of the pressure rod 3 presses the bottom end of the cable and pulls the cable to move into the wiring part 5 until the bottom end of the pressure rod 3 completely presses the cable so that the rotor 2 cannot rotate.

[0041] By rotating the rotor 2, the pressure rod 3 presses the end of the cable to achieve fast and convenient cable connection. At the same time, the cable is bent by the rotor 2 and the pressure rod 3, and the cable is fixed by the friction between the cable, the rotor 2 and the pressure rod 3.

[0042] In one specific embodiment:

[0043] Every two sliding holes form a group, and the pressure rod 3 is a U-shaped structure, so that the two sides of a pressure rod 3 are respectively slidably arranged in the two sliding holes. Through this design, the stability of the pressure rod 3 during the movement is improved.

[0044] In another specific embodiment:

[0045] A limit ring is provided on a section of the pressure rod 3 located above the rotor 2. The size of the limit ring is larger than the size of the sliding hole. By providing the limit ring, the pressure rod 3 is kept at a certain length above the rotor 2, thereby ensuring that the pressure rod 3 can smoothly contact the driving surface.

[0046] In another specific embodiment:

[0047] A slide groove is provided on the side wall of the connection portion 5 , the length direction of the slide groove is parallel to the axial direction of the rotor 2 , an L-shaped limit block 7 is slidably provided in the slide groove, and one end of the limit block 7 is located in the connection portion 5 .

[0048] When the top end of the pressure rod 3 rotates to the end farthest from the driving surface and the axis of the rotor 2, the sliding limit block 7 places the end of the limit block 7 on the pressure rod 3, and fixes the pressure rod 3 between the driving block 4 and the limit block 7, thereby preventing the rotor 2 from rotating and causing the cable to loosen when the cable is subjected to tension.

[0049] In another specific embodiment:

[0050] A slide plate 8 is provided on the other end of the limit block 7. The slide plate 8 is slidably arranged outside the power supply body 1, and the length of the slide plate 8 is greater than the length of the slide slot. A driving plate is vertically connected to the slide plate 8 in the middle of the slide plate 8. The entire slide slot can be covered by the slide plate 8 to prevent debris from entering the wiring portion 5. The slide plate 8 is directly pushed to move by the driving plate, thereby driving the limit block 7 to move.

[0051] In another specific embodiment:

[0052] The bottom surface of the rotor 2 is provided with two concave clamping parts 9. When the pressure rod 3 moves and compresses the cable, the cable can be bent and a part of the cable can be sunk into the clamping parts 9, thereby enhancing the connection strength of the cable.

[0053] In another specific embodiment:

[0054] A connecting plate is provided between the two pressure rods 3, and the connecting plate is connected to the bottom end of the pressure rod 3. A spring 10 is provided between the middle of the connecting plate and the rotor 2, and by providing the spring 10, the pressure rod 3 can be driven to automatically reset, so that the bottom of the pressure rod 3 and the plane of the rotor 2 are kept at a distance.

[0055] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A DC operating power supply, characterized in that: include: A power source body, which has a wiring portion inside, and the power source body is provided with a wire insertion hole, and the wire insertion hole is connected to the wiring portion; A rotor is rotatably arranged in the wiring part, and its rotation axis is perpendicular to the length direction of the wire insertion hole. The rotor is provided with a sliding hole perpendicular to its axis; A pressure rod is slidably disposed in the sliding hole, and both ends of the pressure rod are L-shaped; Two driving blocks are arranged on the inner wall of the connection part, the driving block has an arc-shaped driving surface, and the distance between the driving surface and the rotor axis increases linearly; Wherein, two pressure rods are slidably provided on the rotor, and the top ends of the pressure rods can slide on the driving surface.

2. The DC operating power supply according to claim 1, characterized in that: The rotor is provided with four sliding holes, and the pressure rod is a square-shaped structure; One end of the driving surface is close to the top of the rotor, and the distance between the end of the driving surface and the axis of the rotor is less than or equal to the distance between the top end of the pressure rod and the axis of the rotor; The other end of the driving surface is close to the side of the rotor, and the distance between this end of the driving surface and the axis of the rotor is greater than the distance between the top end of the pressure rod and the axis of the rotor.

3. The DC operating power supply according to claim 2, characterized in that: A limiting ring is provided on a section of the pressure rod located above the rotor, and the size of the limiting ring is larger than the size of the sliding hole.

4. The DC operating power supply according to claim 3, characterized in that: A slide groove is provided on the side wall of the connection portion, and the length direction of the slide groove is parallel to the axis direction of the rotor; An L-shaped limiting block is slidably arranged in the slide groove, and one end of the limiting block is located in the wiring portion.

5. The DC operating power supply according to claim 4, characterized in that: A slide plate is provided on the other end of the limit block. The slide plate is slidably arranged outside the power source body, and the length of the slide plate is greater than the length of the slide slot. The middle part of the slide plate has a driving plate vertically connected thereto.

6. The DC operating power supply according to claim 5, characterized in that: The bottom surface of the rotor is provided with two concave clamping parts.

7. The DC operating power supply according to claim 5, characterized in that: A connecting plate is provided between the two pressure rods, and the connecting plate is connected to the bottom ends of the pressure rods; A spring is arranged between the middle part of the connecting plate and the rotor.

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