Integrated glass integrally-sintered oil pump sealing binding post
By combining glass sintered terminals with threaded structures, the aging problem of oil pump seals in harsh environments is solved, achieving sealing reliability and ease of maintenance, and improving the operational stability and safety of the oil pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-19
- Publication Date
- 2026-03-27
AI Technical Summary
Existing oil pump sealing terminals are prone to aging and deformation of seals under oil erosion, pressure fluctuations, and high and low temperature cycling environments, leading to seal failure, oil leakage, affecting the stability of oil pump operation, and potentially causing electrical short circuit risks and equipment shutdown failures.
It adopts glass sintered terminals and threaded structure, combined with silicone ring, epoxy resin adhesive layer and thread-locking design to form an integrated sealed terminal, ensuring that the terminal does not have a loose connection and the three-phase resistance is balanced, which facilitates installation and maintenance.
Maintaining a tight seal in harsh environments reduces costs, improves the stability and safety of oil pump operation, and prevents equipment failure.
Smart Images

Figure CN121748858A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of terminal block technology, and in particular relates to an integrated glass integral sintered oil pump sealing terminal block. Background Technology
[0002] In oil pump equipment, the sealing terminal is a core component connecting the motor windings to the external circuit. Its sealing reliability, connection stability, and ease of maintenance directly determine the operational safety, service life, and economic efficiency of the oil pump. However, existing oil pump sealing terminals still face many technical challenges in practical applications, making it difficult to meet the industrial production demands for high performance and low wear.
[0003] Among these pain points, insufficient sealing performance is a prominent issue. Traditional terminals often use a single sealing gasket or simple sealant for sealing, and the sealing structure design lacks a sense of layering. Under the long-term operation of oil pumps, with oil erosion, pressure fluctuations, and high and low temperature cycles, the seals are prone to aging and deformation, leading to seal failure and oil leakage. This can not only cause electrical short circuit risks but also contaminate surrounding components, seriously affecting the overall operational stability of the oil pump and even causing equipment shutdown failures.
[0004] To address these issues, we provide an integrated glass monolithic sintered oil pump sealing terminal. Summary of the Invention
[0005] The purpose of this invention is to provide an integrated glass-bonded sintered oil pump sealing terminal. Through the terminal's function, the glass-bonded structure connects to the external system via a threaded structure. This structure provides effective sealing; thread-locking adhesive is used to prevent rotation; and the sealing terminal structure does not require glue injection, ensuring no loose connection at the terminals, i.e., balanced three-phase resistance. The threaded connection facilitates installation, maintenance, and replacement, effectively reducing costs. This invention solves the problem that existing terminals often use a single sealing gasket or simple sealant, resulting in a lack of layered sealing design. Under the long-term operation of oil pumps, exposed to oil erosion, pressure fluctuations, and high / low temperature cycling, seals are prone to aging and deformation, leading to seal failure and oil leakage. This not only poses a risk of electrical short circuits but also contaminates surrounding components, severely affecting the overall operational stability of the oil pump and even causing equipment shutdown.
[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is an integrated glass integral sintered oil pump sealing terminal, wherein the integrated glass integral sintered oil pump sealing terminal is as follows:
[0007] Terminals, which are made of glass sintering, are arranged between devices, wherein an insulating sleeve is fitted on the outer side of the middle section of the terminal;
[0008] A nut is fixed to the outside of the insulating sleeve, and a sealing element is fixed between the nut and the insulating sleeve;
[0009] Seals, including reinforcements, sealing rings, and adhesive layers;
[0010] The reinforcing member is located between the terminal and the nut, and the sealing ring is located at one end of the nut and wraps around the outside of the terminal.
[0011] The adhesive layer is located in the gap between the reinforcement and the insulating sleeve, and the adhesive layer wraps around the outside of the terminal block.
[0012] The present invention is further configured such that the reinforcing component is made of glass.
[0013] The present invention is further configured such that the sealing ring is a silicone ring made of RTV material.
[0014] The present invention is further configured such that: the adhesive layer is made of an adhesive, and the adhesive is epoxy resin.
[0015] The present invention is further configured such that: a first nut is rotatably connected to the outside of the terminal block, and the first nut is an external hexagonal nut M6;
[0016] A second nut is rotatably connected to the outside of the terminal block. The second nut is an M6 hexagonal thin nut.
[0017] The present invention is further configured such that: a spring washer is sleeved on the outside of the terminal block, and a flat washer is sleeved on the outside of the terminal block;
[0018] The spring washer is located between the first nut and the flat washer.
[0019] The present invention is further configured such that: a sealing gasket is fixed on one side of the nut, and the sealing gasket has an "O" shaped structure;
[0020] The sealing gasket is made of nitrile rubber.
[0021] The present invention has the following beneficial effects:
[0022] This invention utilizes the function of terminal blocks, which are made of sintered glass and connected to the outside via a threaded structure. This structure provides effective sealing; thread-locking adhesive is used to prevent rotation; and the sealed terminal block structure does not require glue filling, ensuring that the terminals are not loosely connected, i.e., the three-phase resistance is balanced. The threaded connection facilitates installation, maintenance, and replacement, effectively reducing costs. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of an integrated glass integral sintered oil pump sealing terminal of the present invention.
[0025] Figure 2 This is a schematic diagram of the external structure of the present invention.
[0026] The attached diagram lists the components represented by each number as follows:
[0027] 1-Nut, 2-Terminal, 3-Reinforcing component, 4-Insulating sleeve, 5-Sealing ring, 6-Adhesive layer, 7-First nut, 8-Second nut, 9-Spring washer, 10-Flat washer, 11-Sealing gasket. Detailed Implementation
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0030] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention. Specific Implementation
[0031] Please see Figures 1-2 This invention relates to an integrated glass sintered oil pump sealing terminal block, comprising: a terminal block 2, which is made of sintered glass and arranged between devices, wherein an insulating sleeve 4 is sleeved on the outer side of the middle section of the terminal block 2; a nut 1, which is fixed to the outside of the insulating sleeve 4, and a sealing element is fixed between the nut 1 and the insulating sleeve 4; the sealing element includes a reinforcing member 3, a sealing ring 5, and an adhesive layer 6; the reinforcing member 3 is located between the terminal block 2 and the nut 1, the sealing ring 5 is located at one end of the nut 1 and wraps around the outside of the terminal block 2; the adhesive layer 6 is located in the gap between the reinforcing member 3 and the insulating sleeve 4, and the adhesive layer 6 wraps around the outside of the terminal block 2.
[0032] Specifically, the reinforcing member 3 is made of glass; the sealing ring 5 is a silicone ring made of RTV material; and the adhesive layer 6 is made of adhesive, which is epoxy resin.
[0033] Furthermore, a first nut 7 is rotatably connected to the outside of terminal 2, and the first nut 7 is an external hexagonal nut M6; a second nut 8 is rotatably connected to the outside of terminal 2, and the second nut 8 is an external hexagonal thin nut M6; a spring washer 9 is sleeved on the outside of terminal 2, and a flat washer 10 is sleeved on the outside of terminal 2; the spring washer 9 is located between the first nut 7 and the flat washer 10; a sealing gasket 11 is fixed on one side of nut 1, and the sealing gasket 11 has an "O" type structure; the sealing gasket 11 is made of nitrile rubber.
[0034] The operation process of this embodiment is as follows: In this device, the first nut 7, the second nut 8, the spring washer 9, and the flat washer 10 are fasteners used to connect the wiring terminals of the internal winding coil of the motor and the customer's wiring, and have no sealing function.
[0035] After the nut 1 and the insulating sleeve 4 are fitted together, they are fixed with tooling, an adhesive layer 6 is added and sintered, and after cooling, the reinforcing part 3 and the sealing ring 5 are installed. The terminal 2 runs through all the components. The terminal 2 is a copper core metal double-ended stud. A threaded through hole is opened at the junction box. The nut 1 is tightened to the specified torque. An appropriate amount of thread sealant is applied to the thread to prevent rotation. The sealing gasket 11 and the thread play a sealing role.
[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. A one-piece glass integral sintered oil pump sealing terminal, characterized in that: The integrated glass integral sintered oil pump sealing terminal: Terminal (2), wherein the terminal (2) is made of glass sintering; arranged between devices, wherein the middle section of the terminal (2) is sleeved with an insulating sleeve (4). Nut (1), which is fixed on the outside of insulating sleeve (4), and a sealing element is fixed between nut (1) and insulating sleeve (4); The sealing element includes a reinforcing member (3), a sealing ring (5), and an adhesive layer (6); The reinforcement (3) is located between the terminal (2) and the nut (1), and the sealing ring (5) is located at one end of the nut (1) and wrapped around the outside of the terminal (2); The adhesive layer (6) is located in the gap between the reinforcement (3) and the insulating sleeve (4), and the adhesive layer (6) wraps around the outside of the terminal (2).
2. The integrated glass integral sintered oil pump sealing terminal according to claim 1, characterized in that, The reinforcement component (3) is made of glass.
3. The integrated glass integral sintered oil pump sealing terminal according to claim 1, characterized in that, The sealing ring (5) is a silicone ring made of RTV material.
4. The integrated glass integral sintered oil pump sealing terminal according to claim 1, characterized in that, The adhesive layer (6) is made of an adhesive, which is an epoxy resin.
5. The integrated glass integral sintered oil pump sealing terminal according to claim 1, characterized in that, The terminal block (2) is rotatably connected to a first nut (7), which is an external hexagonal nut M (6). The terminal block (2) is rotatably connected to a second nut (8), which is an external hexagonal thin nut M (6).
6. The integrated glass integral sintered oil pump sealing terminal according to claim 1, characterized in that, A spring washer (9) is fitted on the outside of the terminal (2), and a flat washer (10) is fitted on the outside of the terminal (2). The spring washer (9) is located between the first nut (7) and the flat washer (10).
7. The integrated glass integral sintered oil pump sealing terminal according to claim 1, characterized in that, A sealing gasket (11) is fixed on one side of the nut (1), and the sealing gasket (11) has an "O" shaped structure; The sealing gasket (11) is made of nitrile rubber.