Anti-loosening capacitor guide pin structure

Abstract

The utility model discloses an anti-loosening capacitor guide pin structure, which comprises a capacitor, capacitor guide pins are respectively arranged on two sides in the capacitor, an insulating cover is arranged above the capacitor, and internal thread grooves are respectively arranged on two sides of the upper end face of the insulating cover. Guide pin through holes penetrating through the insulating cover are formed in the middle of the inner wall of the lower end of the internal thread groove, the two capacitor guide pins penetrate through the two guide pin through holes respectively, and the four end corners of the inner wall of the lower end of the internal thread groove are each provided with a rectangular pushing reinforcing head. And a plurality of rubber reinforcing strips are arranged on the surface, facing the capacitor guide pin, of the rectangular pushing reinforcing head. Preferably, the upper side of the outer surface of the capacitor is provided with an annular fixing groove. According to the utility model, the capacitor guide pin can be fixed, the condition that the capacitor guide pin and the filler in the capacitor loosen or fall off due to the aging of equipment can be prevented, and the stability of the electrical property is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of guide needles, in particular to a capacitor guide needle structure that prevents loosening. Background Art

[0002] Capacitor guide pins are metal conductors used to connect the electrodes of capacitors and external circuits. They usually have a small diameter and good conductivity. The structure and material of capacitor guide pins can be selected according to different application scenarios and requirements.

[0003] The capacitor guide pin has the problem that the capacitor guide pin pin is easily damaged, and the entire capacitor will be scrapped after being damaged. Among them, the patent number CN217008945U in the prior art is a split capacitor guide pin. The pin adopts a split structure, and the detachable section exposed outside the reinforcement sleeve is replaceable. When the detachable section is damaged and fails, there is no need to discard the entire capacitor, which saves costs and solves the above problem. However, with the increase of usage time and the aging of the overall structure of the equipment, the capacitor guide pin and the filler located inside the capacitor may become loose, thereby affecting the stability of its current transmission; therefore, it does not meet the existing needs, and we have proposed an anti-loosening capacitor guide pin structure. Utility Model Content

[0004] The purpose of the utility model is to provide a capacitor guide pin structure that prevents loosening, so as to solve the problems raised in the above-mentioned background technology that as the use time increases, the overall structure of the equipment ages, and the capacitor guide pin and the filler located inside the capacitor may become loose, thereby affecting the stability of its current transmission.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a capacitor guide pin structure to prevent loosening, comprising a capacitor, wherein a capacitor guide pin is provided on both sides of the inside of the capacitor, an insulating cover is provided above the capacitor, an internal thread groove is provided on both sides of the upper end surface of the insulating cover, a guide pin through hole penetrating the insulating cover is provided at the middle position of the inner wall at the lower end of the internal thread groove, two capacitor guide pins respectively penetrate the two guide pin through holes, a rectangular push reinforcement head is provided at the four end corners of the inner wall at the lower end of the internal thread groove, and a plurality of rubber reinforcement strips are provided on the surface of the rectangular push reinforcement head facing the capacitor guide pin.

[0006] Preferably, an annular fixing groove is provided on the upper side of the outer surface of the capacitor, a spring groove is provided at each of the four end corners inside the insulating cover, an insulating plate that fits the inner wall of the spring groove is provided inside the spring groove, a fixing spring is connected to one side of the outer surface of the insulating plate, and a hemispherical head whose position corresponds to the annular fixing groove is fixed on the other side of the outer surface of the insulating plate.

[0007] Preferably, an external thread sleeve is provided inside the internal thread groove, an external thread matching the internal thread of the internal thread groove is provided on the lower side of the outer surface of the external thread sleeve, and a circle of semi-cylindrical grooves are provided in the middle position of the outer surface of the external thread sleeve and on the upper side of the outer surface.

[0008] Preferably, the lower end surface of the external threaded sleeve is provided with a beveled annular groove, and the surface of the beveled annular groove facing the rectangular push reinforcement head and the surface of the rectangular push reinforcement head facing the beveled annular groove are both inclined surfaces.

[0009] Preferably, the bottom end of the rectangular push reinforcement head is horizontally penetrated by a guide rod, and the outer surface of the guide rod is sleeved with a spring connected to the rectangular push reinforcement head.

[0010] Preferably, a circular cover plate is provided below the external threaded sleeve and is located on the inner wall of the insulating cover, and the insulating cover and the circular cover plate are fixed by screws.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model can fix the capacitor guide pin through the rectangular push reinforcement head inside the insulating cover and the external threaded sleeve located above the guide rod. By fixing the capacitor guide pin, it can prevent the capacitor guide pin from loosening or falling off from the filler inside the capacitor due to aging of the equipment, thereby ensuring the stability of electrical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is the main view of the internal structure of the utility model as a whole;

[0015] Figure 3 For this utility model Figure 2 A magnified view of the structure at center.

[0016] In the figure: 1. capacitor; 2. capacitor guide pin; 3. insulating cover; 4. internal thread groove; 5. guide pin through hole; 6. external thread sleeve; 7. bevel annular groove; 8. rectangular push reinforcement head; 9. guide rod; 10. spring; 11. spring groove; 12. insulating plate; 13. fixing spring; 14. hemispherical head; 15. annular fixing groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] The capacitor 1 (model 400V4700UF), capacitor guide pin 3 (model ARITERCH115) and fixing spring 13 (model JX110) mentioned in the present invention can be purchased from the market or obtained by private customization.

[0019] See also Figures 1 to 3 The utility model provides an embodiment: a capacitor guide pin structure to prevent loosening, comprising a capacitor 1, a capacitor guide pin 2 is provided on both sides of the inside of the capacitor 1, an insulating cover 3 is provided above the capacitor 1, an internal thread groove 4 is provided on both sides of the upper end surface of the insulating cover 3, a guide pin through hole 5 penetrating the insulating cover 3 is provided at the middle position of the inner wall at the lower end of the internal thread groove 4, two capacitor guide pins 2 respectively penetrate the two guide pin through holes 5, a rectangular push reinforcement head 8 is provided at the four end corners of the inner wall at the lower end of the internal thread groove 4, and a plurality of rubber reinforcement strips are provided on the surface of the rectangular push reinforcement head 8 facing the capacitor guide pin 2.

[0020] An annular fixing groove 15 is provided on the upper side of the outer surface of the capacitor 1, and a spring groove 11 is provided at each of the four end corners inside the insulating cover 3. An insulating plate 12 that fits the inner wall thereof is provided inside the spring groove 11, and a fixing spring 13 is connected to one side of the outer surface of the insulating plate 12, and a hemispherical head 14 whose position corresponds to the annular fixing groove 15 is fixedly provided on the other side of the outer surface of the insulating plate 12; when using this device, the two capacitor guide pins 2 are respectively aligned with the two guide pin through holes 5, and then the insulating cover 3 is manually moved downward, and as the insulating cover 3 descends, the capacitor guide pin 2 will enter the inside of the guide pin through hole 5 and pass through the guide pin through hole 5 as the insulating cover 3 descends, and as the insulating cover 3 descends, the hemispherical head 14 will contact the upper end surface of the capacitor 1, and since the hemispherical head 14 is hemispherical, as the insulating cover 3 descends, the hemispherical head 14 and the insulating plate 12 fixed thereto will be Push and squeeze the fixing spring 13 outward. When the hemispherical head 14 moves to the position of the annular fixing groove 15 on the outer surface of the outer surface capacitor 1, the hemispherical head 14 can be pushed inward by the reaction force of the squeezed fixing spring 13, so that it enters the inside of the annular fixing groove 15, thereby fixing the insulating cover 3 to the upper end surface of the capacitor 1. When the insulating cover 3 needs to be removed, just hold the insulating cover 3 and then pull the insulating cover 3 upward. When the insulating cover 3 receives the upward pulling force, the hemispherical head 14 will be moved outward, thereby leaving the inside of the annular fixing groove 15, so as to release the fixation of the insulating cover 3. The above technical solution can be used to disassemble and assemble the insulating cover 3. When the capacitor 1 itself is too severely aged to be used, through this structure, the insulating cover 3 can be installed on a new capacitor 1 so that it can continue to be used, thereby saving its cost.

[0021] An external threaded sleeve 6 is provided inside the internal threaded groove 4, and an external thread matching the internal thread of the internal threaded groove 4 is provided on the lower side of the outer surface of the external threaded sleeve 6, and a circle of semi-cylindrical grooves are provided in the middle position of the outer surface and on the upper side of the outer surface of the external threaded sleeve 6; when the insulating cover 3 is installed, hold the external threaded sleeve 6, and then manually rotate the external threaded sleeve 6, and the friction of the external threaded sleeve 6 can be increased through the circle of semi-cylindrical grooves located on the outer surface of the guide rod 9 to prevent slipping. When the external threaded sleeve 6 rotates, the external threaded sleeve 6 can move up and down inside the internal threaded groove 4 through the transmission of the threaded structure.

[0022] The lower end surface of the external threaded sleeve 6 is provided with an inclined annular groove 7, and the surface of the inclined annular groove 7 facing the rectangular push reinforcement head 8 and the surface of the rectangular push reinforcement head 8 facing the inclined annular groove 7 are both inclined surfaces; the bottom end of the rectangular push reinforcement head 8 is horizontally penetrated by the guide rod 9, and the outer surface of the guide rod 9 is sleeved with a spring 10 connected to the rectangular push reinforcement head 8; when the external threaded sleeve 6 moves downward, the inner wall of the inclined annular groove 7 will contact the rectangular push reinforcement head 8 located below it, and as the external threaded sleeve 6 descends, the rectangular push reinforcement head 8 can be pushed inward, and as the rectangular push reinforcement head 8 moves inward, the rectangular push reinforcement head 8 will contact the capacitor guide pin 2, thereby fixing it to prevent it from loosening or falling off from the filler inside the capacitor 1, thereby ensuring the stability of the electrical performance.

[0023] A circular cover plate is provided below the external threaded sleeve 6 and is located on the inner wall of the insulating cover 3 , and the insulating cover 3 and the circular cover plate are fixed by screws; the circular cover plate can protect the internal structure of the insulating cover 3 .

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A capacitor guide pin structure for preventing loosening, comprising a capacitor (1), characterized in that: A capacitor guide pin (2) is provided on both sides of the capacitor (1), an insulating cover (3) is provided above the capacitor (1), an internal thread groove (4) is provided on both sides of the upper end surface of the insulating cover (3), a guide pin through hole (5) penetrating the insulating cover (3) is provided at the middle position of the inner wall at the lower end of the internal thread groove (4), the two capacitor guide pins (2) respectively penetrate the two guide pin through holes (5), a rectangular push reinforcement head (8) is provided at the four end corners of the inner wall at the lower end of the internal thread groove (4), and a plurality of rubber reinforcement strips are provided on the surface of the rectangular push reinforcement head (8) facing the capacitor guide pin (2).

2. The anti-loosening capacitor guide pin structure according to claim 1, characterized in that: An annular fixing groove (15) is provided on the upper side of the outer surface of the capacitor (1), a spring groove (11) is provided at each of the four end corners inside the insulating cover (3), an insulating plate (12) is provided inside the spring groove (11) and is fitted with an inner wall thereof, a fixing spring (13) is connected to one side of the outer surface of the insulating plate (12), and a hemispherical head (14) is fixedly provided on the other side of the outer surface of the insulating plate (12) and its position corresponds to the annular fixing groove (15).

3. The anti-loosening capacitor guide pin structure according to claim 1, characterized in that: An external thread sleeve (6) is provided inside the internal thread groove (4), an external thread matching the internal thread of the internal thread groove (4) is provided on the lower side of the outer surface of the external thread sleeve (6), and a circle of semi-cylindrical grooves are provided at the middle position and the upper side of the outer surface of the external thread sleeve (6).

4. The anti-loosening capacitor guide pin structure according to claim 3, characterized in that: The lower end surface of the external threaded sleeve (6) is provided with an inclined annular groove (7), and the surface of the inclined annular groove (7) facing the rectangular push reinforcement head (8) and the surface of the rectangular push reinforcement head (8) facing the inclined annular groove (7) are both inclined surfaces.

5. The anti-loosening capacitor guide pin structure according to claim 4, characterized in that: The bottom end of the rectangular push reinforcement head (8) is horizontally penetrated by a guide rod (9), and the outer surface of the guide rod (9) is sleeved with a spring (10) connected to the rectangular push reinforcement head (8).

6. The anti-loosening capacitor guide pin structure according to claim 3, characterized in that: A circular cover plate is provided below the external threaded sleeve (6) and is located on the inner wall of the insulating cover (3), and the insulating cover (3) and the circular cover plate are fixed by screws.

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