Structure for eliminating static electricity in deep hole
By installing a metal conductive cylinder inside the oil return pipe of the oil sump and connecting it to the negative terminal of the blue-black wire, the problem of insufficient strength of conductive POM material is solved, achieving a low-cost and efficient static elimination effect, and improving the stability and cost competitiveness of the parts.
Patent Information
- Application Number
- CN202422489651.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-10-12
AI Technical Summary
When eliminating static electricity in deep holes, the existing fuel pump assembly suffers from insufficient strength and toughness of conductive POM material, leading to easy breakage of parts and excessively high costs, resulting in a lack of price competitiveness.
A metal conductive cylinder is connected to the negative terminal of a blue-black wire. Static electricity is discharged by placing the metal conductive cylinder inside the oil return pipe of the oil tank, and the negative terminal of the blue-black wire is used to eliminate static electricity.
It effectively eliminates static electricity in deep holes of oil pipes at a lower cost, has a simple structure, high fixation stability, reduces the risk of component breakage, and lowers manufacturing costs.
Smart Images
Figure CN223676404U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of oil pump, in particular to a structure of eliminating static electricity in deep hole. BACKGROUND
[0002] The existing fuel pump assembly eliminates the static electricity in the deep hole mainly by using the conductive POM material of the material of the deep hole part, and the static electricity generated in the deep hole is led out by connecting the fuel pump power negative pole. The problems of this method mainly have two points: 1, the strength and toughness of the conductive POM material are worse than those of the non-conductive POM material, and the risk of rupture and fracture of the parts is larger. 2, the price of the conductive POM material is more than 3 times the price of the non-conductive POM material, and if the volume and weight of the part with deep hole are large (such as oil pool, filter and the like), the manufacturing cost of the part is too expensive, and there is no price competitive advantage in the industry. SUMMARY
[0003] To solve the above technical problems, the utility model provides a structure of eliminating static electricity in deep hole, which uses the negative pole of blue-black wire to eliminate static electricity, and can ensure the elimination of static electricity in the deep hole of the oil pipe under the condition of less cost increase.
[0004] The utility model solves the technical problems and adopts the technical scheme that: including the metal conductive cylinder arranged in the oil pool return oil pipe, the metal conductive cylinder extends to the bottom of the oil pool downward, and the metal conductive cylinder is electrically connected to the negative pole of the blue-black wire.
[0005] The utility model has the advantages of:
[0006] The metal conductive cylinder is arranged in the deep hole of the oil pipe to lead out the static electricity in the deep hole, the negative pole of the blue-black wire is used to eliminate static electricity, and the elimination of static electricity in the deep hole of the oil pipe can be ensured under the condition of less cost increase.
[0007] The overall structure is simple and flexible, the length of the static ring can be adjusted according to the size of the return oil pipe, the required static electricity elimination effect can be achieved, the production is easy, the cost is low, the assembly process is simple and reliable, and the static electricity elimination structure only needs to be assembled in the hole and tightly matched with the conductive oil pipe.
[0008] Preferably, the upper end of the oil pool return oil pipe is matched 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 pole of the blue-black wire. The conductive oil pipe is used as an intermediate medium for electrically connecting the negative pole of the blue-black wire, the structure is more compact, and the fixing stability of the metal conductive pipe can be improved.
[0009] Preferably, the upper end of the metal conductive cylinder is provided with an elastic metal leg outside, and the end of the elastic metal leg is abutted to the inner wall of the conductive oil pipe. The elastic metal leg can be better in electrically connected contact with the inner wall of the metal conductive cylinder, and the stability of the metal conductive cylinder in the oil return pipe can be improved.
[0010] Preferably, the upper end of the oil return pipe is provided with a notch matched with the elastic metal leg, and the end of the elastic metal leg is outwardly abutted to the inner wall of the conductive oil pipe from the notch. The elastic metal leg is more convenient to fix, and obvious damage to the existing structure is avoided, and the adaptability to the existing structure is improved.
[0011] Preferably, the lower end of the metal conductive cylinder is provided with an elastic member, and the elastic member is in contact with the inner bottom of the oil pool. The lower end of the metal conductive cylinder is positioned, so that the metal conductive cylinder can be contacted when the oil is less.
[0012] Preferably, the lower end of the elastic member is provided with a rubber pad in contact with the inner bottom of the oil pool. The elastic member is prevented from generating static electricity by friction with the inside of the oil tank.
[0013] Preferably, the elastic member is a variable diameter spring with thick upper end and thin lower end. The metal conductive cylinder can be inserted into the oil return pipe, and a certain filtering effect can be achieved.
[0014] Preferably, the metal conductive cylinder is 0.1mm-0.2mm thick. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The schematic view of the embodiment of the utility model;
[0016] Metal conductive cylinder 1, oil return pipe 2, conductive oil pipe 3, notch 4, metal conductive leg 5, elastic member 6, rubber pad 7. DETAILED DESCRIPTION
[0017] In order to deepen the understanding of the utility model, the utility model will be further described in detail in combination with the drawings and the embodiment below, and the embodiment is only used to explain the utility model, and does not constitute the limitation to the protection scope of the utility model.
[0018] EMBODIMENT
[0019] As Figure 1 shown, a structure for eliminating static electricity in deep hole includes a metal conductive cylinder 1 arranged in an oil pool oil return pipe 2, the metal conductive cylinder 1 downwardly extends to the bottom of the oil pool, and the metal conductive cylinder 1 is electrically connected to the negative pole of blue-black wire.
[0020] The scheme is installed in the oil pipe deep hole to lead out the metal conductive cylinder 1 in the deep hole, and the negative pole of the blue-black line is used to remove static electricity, which can ensure the elimination of static electricity in the deep hole of the oil pipe with less cost increase. The overall structure is simple and flexible, and the length of the static ring can be adjusted according to the size of the oil return pipe 2 to achieve the required static elimination effect. It is easy to make, low in cost, simple and reliable in assembly process, and only needs to be assembled in the hole and tightly matched with the conductive oil pipe 3.
[0021] The upper end of the oil pool oil return pipe 2 is matched with the conductive oil pipe 3, the upper end of the conductive oil pipe 3 is electrically connected with the metal conductive cylinder 1, and the conductive oil pipe 3 is electrically connected with the negative pole of the blue-black line. The conductive oil pipe 3 is used as an intermediate medium for electrically connecting the negative pole of the blue-black line, which makes the structure more compact and improves the fixing stability of the metal conductive pipe.
[0022] The upper end of the metal conductive cylinder 1 is provided with a elastic metal support, and the end of the elastic metal support abuts against the inner wall of the conductive oil pipe 3. The elastic metal support can better electrically connect with the inner wall of the metal conductive cylinder 1, and the stability of the metal conductive cylinder 1 in the oil return pipe 2 is improved.
[0023] The upper end of the oil return pipe 2 is provided with a notch 4 matched with the elastic metal support, and the end of the elastic metal support abuts against the inner wall of the conductive oil pipe 3 outward from the notch 4. The elastic metal support is more convenient to fix, and does not cause obvious damage to the existing structure, improving the adaptability with the existing structure.
[0024] The lower end of the metal conductive cylinder 1 is provided with an elastic member 6, which is in contact with the inner bottom of the oil pool. The lower end of the metal conductive cylinder 1 is positioned to ensure that it can contact the oil when the oil is less.
[0025] The lower end of the elastic member 6 is provided with a rubber pad 7 in contact with the inner bottom of the oil pool. The friction between the elastic member 6 and the oil tank is avoided to generate static electricity.
[0026] The elastic member 6 is a variable diameter spring with thick upper end and thin lower end. The metal conductive cylinder 1 can be easily inserted into the oil return pipe 2, and can also have a certain filtering effect.
[0027] The metal conductive cylinder 1 is 10.1mm-0.2mm thick.
[0028] The technical features of the above embodiments can be combined arbitrarily, and in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.
[0029] The above embodiments only express several implementation manners of the application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which all belong to the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.
Claims
1. A structure for eliminating static electricity in a deep hole, characterized by, The metal conductive cylinder (1) is set in the oil pool return oil pipe (2), the metal conductive cylinder extends downward to the bottom of the oil pool, and the metal conductive cylinder (1) is electrically connected to the negative electrode of the blue-black wire.
2. The structure for eliminating static electricity in a deep hole according to claim 1, wherein: The upper end of the oil pool return oil pipe (2) is matched with the 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 wire.
3. The structure according to claim 2, wherein: The upper end of the metal conductive cylinder (1) is outwardly provided with an elastic metal support, and the end of the elastic metal support is abutted against the inner wall of the conductive oil pipe (3).
4. The structure according to claim 3, wherein: The upper end of the return oil pipe (2) is provided with a notch (4) matched with the elastic metal support, and the end of the elastic metal support is outwardly abutted against the inner wall of the conductive oil pipe (3) from the notch (4).
5. The structure according to claim 1, wherein: The lower end of the metal conductive cylinder (1) is provided with an elastic member (6), 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 5, wherein: The lower end of the elastic member (6) is provided with a rubber pad (7) in contact with the inner bottom of the oil pool.
7. The structure according to claim 6, wherein: The elastic member (6) is a variable-diameter spring with thick upper end and thin lower end.
8. The structure according to claim 1, wherein: The metal conductive cylinder (1) is 0.1mm-0.2mm thick.