Structure for eliminating static electricity in deep hole
By setting a metal conducting torch and the negative electrode of the blue-black wire in the oil tank return pipe, the problem of high strength and cost of conductive POM materials in the deep hole of the fuel pump is solved, and effective elimination of static electricity and cost control are achieved.
Patent Information
- Application Number
- CN202411422432.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-01-07
AI Technical Summary
The existing fuel pump uses conductive POM materials in deep hole electrostatic elimination methods, which have problems of insufficient strength and toughness and high cost.
The metal conducting torch is used to electrically couple the negative electrode of the blue-black wire, and the metal conducting torch is arranged in the oil tank return pipe to conduct static electricity, and the conductive oil pipe and elastic metal feet are used to improve the fixing stability and adaptability.
It realizes the effective elimination of deep hole static electricity in the oil pipe when the cost increases less. The overall structure is simple, reliable, and low cost, and does not affect the price competitive advantage of the existing structure.
Smart Images
Figure CN119267056A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of oil pumps, in particular to a structure for eliminating static electricity in a deep hole. Background Art
[0002] The existing fuel pump assembly mainly uses conductive POM materials for deep hole parts to eliminate static electricity in deep holes. The static electricity generated in the deep holes is discharged by connecting the negative pole of the fuel pump power supply. There are two main problems with this method: 1. The strength and toughness of conductive POM materials are inferior to those of non-conductive POM materials, and the risk of parts breaking and rupture is greater. 2. The price of conductive POM materials is more than three times that of non-conductive POM materials. If the parts with deep holes are large in size and weight (such as oil tanks, filters, etc.), the manufacturing cost of the parts is too expensive and there is no price competitive advantage in the industry. Summary of the invention
[0003] In order to solve the above technical problems, the present invention provides a structure for eliminating static electricity in deep holes. The negative electrode of the blue-black line is used to eliminate static electricity, which can ensure the elimination of static electricity in deep holes in oil pipes with less cost increase.
[0004] The technical solution adopted by the present invention to solve its technical problem is: comprising a metal conductive tube arranged in the oil return pipe of the oil pool, the metal conductive tube extends downward to the bottom of the oil pool, and the metal conductive tube is electrically connected to the negative electrode of the blue-black line.
[0005] Advantages of the present invention:
[0006] This solution installs a metal conductive cylinder into the deep hole of the oil pipe to lead out the static electricity, and uses the negative electrode of the blue-black line to eliminate static electricity. With less cost increase, it can ensure the elimination of static electricity in the deep hole of the oil pipe.
[0007] The overall structure is simple and flexible, and the length of the electrostatic coil can be adjusted according to the size of the oil return pipe to achieve the required static elimination effect. It is easy to make, low cost, and the assembly process is simple and reliable. It only needs to be assembled in the hole and pressed tightly with the conductive oil pipe.
[0008] Preferably, the upper end of the oil pool oil return pipe is adapted with a conductive oil pipe, the conductive oil pipe is electrically connected to the upper end of the metal conductive cylinder, and the conductive oil pipe is electrically connected to the negative electrode of the blue-black wire. Using the conductive oil pipe as the intermediate medium electrically connected to the negative electrode of the blue-black wire makes the structure more compact and can improve the fixing stability of the metal conductive pipe.
[0009] Preferably, an elastic metal support foot is downwardly arranged on the outer side of the upper end of the metal conductive cylinder, and the end of the elastic metal support foot abuts against the inner wall of the conductive oil pipe. The elastic metal support foot can better electrically contact the inner wall of the metal conductive cylinder and improve the stability of the metal conductive cylinder fixed in the oil return pipe.
[0010] Preferably, the upper end of the oil return pipe is provided with a notch adapted to the elastic metal leg, and the end of the elastic metal leg abuts against the inner wall of the conductive oil pipe from the notch outward. This makes it easier to fix the elastic metal leg without causing significant damage to the existing structure, thereby improving the compatibility with the existing structure.
[0011] Preferably, an elastic member is provided at the lower end of the metal conductive cylinder, and the elastic member contacts the inner bottom of the oil pool, so as to facilitate positioning of the lower end of the metal conductive cylinder to ensure that the metal conductive cylinder can also contact the oil when there is less oil.
[0012] Preferably, a rubber pad in contact with the bottom of the oil pool is provided at the lower end of the elastic member to avoid static electricity generated by friction between the elastic member and the inside of the oil tank.
[0013] Preferably, the elastic member is a variable diameter spring with a thick upper part and a thin lower part, which can facilitate the insertion of the metal conductive cylinder into the oil return pipe and can achieve a certain filtering effect.
[0014] Preferably, the metal conductive tube is 0.1 mm-0.2 mm thick. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Metal conductive cylinder 1, oil return pipe 2, conductive oil pipe 3, notch 4, metal conductive support foot 5, elastic member 6, rubber pad 7. DETAILED DESCRIPTION
[0016] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.
[0017] Example
[0018] like Figure 1 As shown, a structure for eliminating static electricity in a deep hole includes a metal conductive tube 1 arranged in an oil return pipe 2 of an oil pool, the metal conductive tube extends downward to the bottom of the oil pool, and the metal conductive tube 1 is electrically connected to the negative electrode of the blue-black line.
[0019] This solution installs a metal conductive cylinder 1 into the deep hole of the oil pipe to lead out the static electricity, and uses the negative electrode of the blue-black line to eliminate static electricity. With less cost increase, it can ensure the elimination of static electricity in the deep hole of the oil pipe. The overall structure is simple and flexible, and the length of the static coil can be adjusted according to the size of the return oil pipe 2 to achieve the required static elimination effect. It is easy to make, low cost, simple and reliable assembly process, and only needs to be assembled in the hole and pressed together with the conductive oil pipe 3.
[0020] The upper end of the oil pool oil return pipe 2 is adapted with a conductive oil pipe 3, the conductive oil pipe 3 is electrically connected to the upper end of the metal conductive cylinder 1, and the conductive oil pipe 3 is electrically connected to the negative electrode of the blue-black line. Using the conductive oil pipe 3 as an intermediate medium electrically connected to the negative electrode of the blue-black line makes the structure more compact and can improve the fixing stability of the metal conductive pipe.
[0021] An elastic metal support foot is downwardly arranged on the outer side of the upper end of the metal conductive cylinder 1, and the end of the elastic metal support foot abuts against the inner wall of the conductive oil pipe 3. The elastic metal support foot can better electrically contact with the inner wall of the metal conductive cylinder 1, and can improve the stability of the metal conductive cylinder 1 fixed in the oil return pipe 2.
[0022] The upper end of the oil return pipe 2 is provided with a notch 4 adapted to the elastic metal leg, and the end of the elastic metal leg abuts against the inner wall of the conductive oil pipe 3 from the notch 4. It is more convenient to fix the elastic metal leg without causing obvious damage to the existing structure, thereby improving the adaptability to the existing structure.
[0023] The lower end of the metal conductive cylinder 1 is provided with an elastic member 6, and the elastic member 6 contacts the inner bottom of the oil pool, so as to facilitate positioning of the lower end of the metal conductive cylinder 1, so as to ensure that the metal conductive cylinder 1 can also contact the oil when the oil is less.
[0024] The lower end of the elastic member 6 is provided with a rubber pad 7 in contact with the bottom of the oil pool to avoid static electricity generated by friction between the elastic member 6 and the inside of the oil tank.
[0025] The elastic member 6 is a variable diameter spring with a thick upper part and a thin lower part, which can facilitate the metal conductive cylinder 1 to be inserted into the oil return pipe 2 and can achieve a certain filtering effect.
[0026] The metal conductive tube is 10.1 mm to 0.2 mm thick.
[0027] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0028] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.
Claims
1. A structure for eliminating static electricity in a deep hole, characterized in that: It comprises a metal conductive tube (1) arranged in an oil pool return pipe (2), the metal conductive tube extends downward to the bottom of the oil pool, and the metal conductive tube (1) is electrically connected to the negative pole of the blue-black line.
2. The structure for eliminating static electricity in a deep hole according to claim 1, characterized in that: The upper end of the oil pool oil return pipe (2) is adapted to be equipped with a conductive oil pipe (3), the conductive oil pipe (3) is electrically connected to the upper end of the metal conductive cylinder (1), and the conductive oil pipe (3) is electrically connected to the negative pole of the blue-black wire.
3. The structure for eliminating static electricity in a deep hole according to claim 1, characterized in that: An elastic metal support foot is arranged downwardly on the outer side of the upper end of the metal conductive cylinder (1), and the end of the elastic metal support foot abuts against the inner wall of the conductive oil pipe (3).
4. The structure for eliminating static electricity in a deep hole according to claim 1, characterized in that: The upper end of the oil return pipe (2) is provided with a notch (4) adapted to the elastic metal support leg, and the end of the elastic metal support leg abuts against the inner wall of the conductive oil pipe (3) outward from the notch (4).
5. The structure for eliminating static electricity in a deep hole according to claim 1, characterized in that: An elastic member (6) is provided at the lower end of the metal conductive cylinder (1), and the elastic member (6) is in contact with the inner bottom of the oil pool.
6. The structure for eliminating static electricity in a deep hole according to claim 1, characterized in that: The lower end of the elastic member (6) is provided with a rubber pad (7) in contact with the bottom of the oil pool.
7. The structure for eliminating static electricity in a deep hole according to claim 1, characterized in that: The elastic member (6) is a variable diameter spring which is thick at the top and thin at the bottom.
8. The structure for eliminating static electricity in a deep hole according to claim 1, characterized in that: The metal conductive tube (1) is 0.1 mm to 0.2 mm thick.