Petroleum drilling tool circuit board glue sealing device
By designing a sealing device for positioning plates and frame pressing, the problems of inaccurate position, uneven layer and difficult bubble removal during the sealing process of petroleum drilling tool circuit boards are solved, and a higher quality sealing effect is achieved.
Patent Information
- Application Number
- CN202420694086.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-07
AI Technical Summary
In the prior art, problems such as inaccurate position, uneven layers and difficult bubbles to be eliminated during the sealing process of the circuit board of the oil drilling tool are prone to occur, which affects the working performance of the circuit board.
A sealing device including a positioning plate and a frame is designed. The circuit board is fixed in an appropriate position through the positioning groove on the positioning plate and the U-shaped cross-section of the frame, and the probability of bubbles is reduced through the functional cover and vacuum device. .
It improves the accuracy of the sealant position and the uniformity of the layer thickness, and reduces the probability of bubbles in the sealant layer, and improves the quality and working performance of the circuit board.
Smart Images
Figure CN222442050U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of oil mining equipment processing engineering and relates to a glue sealing device for a circuit board of an oil drilling tool. Background Art
[0002] The operating environment of oil drilling tools is relatively harsh. In order to ensure that the circuit boards in the oil drilling tools can maintain stable performance during operation, the circuit boards need to be sealed with glue for protection. In the prior art, when sealing multiple circuit boards placed on the surface of oil drilling tools, since the surfaces of oil drilling tools are mostly curved, manual operations are mostly required, which can easily lead to problems such as inaccurate sealing position, uneven sealing layer, and bubbles in the sealing layer that are difficult to remove. These problems will affect the working performance of the circuit boards, and further affect the working performance of the oil drilling tools. How to perform high-quality sealing on the circuit boards of oil drilling tools has become a technical problem that needs to be solved urgently. Utility Model Content
[0003] Aiming at some or all of the problems existing in the prior art, the utility model provides a sealing device for a circuit board of an oil drilling tool.
[0004] The circuit board sealing device for oil drilling tools comprises:
[0005] A positioning plate, comprising a first body in a plate shape, and a plurality of positioning grooves arranged on an upper surface of the first body, wherein a plurality of first positioning holes are arranged around each of the positioning grooves; and
[0006] The pressing frame includes a second main body having a U-shaped cross section, and a second positioning hole arranged on the second main body and configured to correspond to the first positioning hole.
[0007] The pressing frame is configured to press the oil drilling tool circuit board onto the positioning groove and fix it to the positioning plate via positioning bolts, so as to perform glue sealing on the oil drilling tool circuit board.
[0008] As an extension of the above technical solution, the present invention also provides the following embodiments:
[0009] The pressing frame includes a plurality of fixing bars which are laterally connected to the upper side of the second body.
[0010] A functional cover is included which is configured to cover the positioning plate.
[0011] A connection port for vacuuming is provided on the functional cover.
[0012] The positioning plate comprises a sealing groove which is opened on the upper surface and has a shape corresponding to the transverse cross section of the functional cover and is used to place a sealing ring.
[0013] The functional cover is made of transparent material.
[0014] The positioning grooves are configured to be evenly distributed on the first body.
[0015] The second positioning hole is configured as a stepped hole.
[0016] A first chamfer is provided at the closed end of the second body.
[0017] A second chamfer is provided at the open end of the second body.
[0018] The advantages of the utility model compared to the prior art are:
[0019] 1. Through the design and combined use of the positioning plate and the pressure frame, the position of the oil drilling tool circuit board is fixed, and the sealing area is limited by the pressure frame, thereby greatly improving the accuracy of the sealing position.
[0020] 2. The original in-situ sealing step is adjusted to a method in which the circuit board is first sealed separately and then installed on the oil drilling tool, so that the sealing layer can be placed horizontally, thereby improving the thickness uniformity of the sealing layer.
[0021] 3. Through the design and use of the functional cover, the sealing layer can be vacuumed during the sealing process, thereby reducing the probability of bubbles remaining in the sealing layer.
[0022] 4. It can realize the simultaneous sealing of multiple oil drilling tool circuit boards, shortening the sealing operation time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural schematic diagram of a circuit board sealing device for oil drilling tools according to the utility model;
[0024] Figure 2 It is a structural schematic diagram of the positioning plate;
[0025] Figure 3 It is a structural schematic diagram of the press frame;
[0026] Figure 4 It is a structural schematic diagram of the functional cover.
[0027] All drawings in the present invention are schematic diagrams for illustrating structures and principles, and are not necessarily drawn according to actual sizes and proportions.
[0028] The specific meanings of the reference numerals in the figures are as follows:
[0029] 1. Positioning plate; 11. First body; 12. Positioning groove; 13. First positioning hole; 14. Sealing groove; 2. Pressing frame; 21. Second body; 211. First chamfer; 212. Second chamfer; 22. Second positioning hole; 3. Oil drilling tool circuit board; 4. Positioning bolt; 5. Functional cover; 51. Connecting port; 100. Oil drilling tool circuit board sealing device. DETAILED DESCRIPTION
[0030] The embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings.
[0031] Figures 1 to 3 The present invention is a schematic diagram of the structure of the circuit board sealing device 100 for oil drilling tools (hereinafter referred to as "device 100") and the schematic diagram of the structure of related parts. As shown in the figure, the device 100 includes a positioning plate 1 and a pressing frame 2. The positioning plate 1 includes a first main body 11 configured as a plate and a plurality of positioning grooves 12 arranged on the upper surface of the first main body 11, and a plurality of first positioning holes 13 corresponding to the third positioning holes (not shown, the same below) for positioning on the circuit board 3 are opened around each positioning groove 12. The pressing frame 2 includes a second main body 21 configured as a U-shaped cross section, and a second positioning hole 22 arranged on the side frame of the second main body 21 and configured to be arranged corresponding to the first positioning hole 13. The pressing frame 2 is also configured to be able to press the circuit board 3 (hereinafter referred to as "circuit board 3") of the oil drilling tool on the positioning groove 12, and to be fixed to the positioning plate 1 through the positioning bolt 4, so as to facilitate the subsequent sealing operation of the circuit board 3 between the positioning plate 1 and the pressing frame 2.
[0032] During the specific operation, the staff first uses a brush, circuit board cleaning liquid, etc. to remove dust and impurities from the circuit board 3, and sprays a layer of release agent on the burn port shell (not shown, the same below) of the circuit board 3, so that the subsequent local demoulding of the sealing layer above the burn port shell can be completed smoothly, and then it is convenient to record the relevant program into the circuit board 3 through the burn port. After that, the cleaned circuit board 3 is placed in an oven for drying. After that, the staff puts the dried circuit board 3 into the positioning groove 12 in the horizontally placed positioning plate 1, and aligns the third positioning hole on the circuit board 3 with the first positioning hole 13 on the positioning plate 1 to ensure that the placement position of the circuit board 3 is accurate. After that, the staff presses the press frame 2 on the circuit board 3 correctly placed on the positioning groove 12, and aligns the second positioning hole 22 on the press frame 2 corresponding to the first positioning hole 13 and the third positioning hole with the third positioning hole on the circuit board 3. Afterwards, the staff will sequentially pass the positioning bolt 4 through the second positioning hole 22, the third positioning hole and the first positioning hole 13 to achieve relative fixation of the press frame 2, the positioning plate 1 and the circuit board 3 between the two, and at this time, the part of the circuit board 3 that needs to be sealed with glue is exposed inside the press frame 2. Since the wire ends of the wires on the circuit board 3 that are used to connect to the external circuit cannot be sealed with glue, they are placed outside the press groove 2 through the open end of the second body 21, and before starting the formal sealing operation, the staff will use a two-component potting glue or other suitable colloid to perform a sealing operation at the open end of the second body 21, so that the second body 21 is transformed from a semi-enclosed structure to a closed structure. Afterwards, the staff will inject the prepared colloid for the sealing operation into the press frame 2, so that the colloid evenly covers the top of the circuit board 3, and let it stand to solidify. After the colloid is completely solidified, the staff completes the partial demolding above the burning port shell, removes the positioning bolt 4, directly removes the pressing groove 2 containing the circuit board 3 with the sealing completed, and after the back side is processed accordingly, installs it on the downhole drilling tool to complete the entire sealing and installation operation of the circuit board 3.
[0033] Through this design, the area of the circuit board 3 that needs to be sealed with glue is limited by the positioning plate 1 and the pressing frame 2, which greatly improves the accuracy of sealing the circuit board 3. And the colloid covering the circuit board 3 can achieve uniform coverage of the circuit board 3 under the action of gravity, which also improves the uniform coverage of the colloid. In addition, the device 100 can also realize the sealing operation of multiple circuit boards 3 at the same time, which improves the work efficiency of the sealing operation.
[0034] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the first body 11 is configured to have a rectangular outer contour.
[0035] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the first body 11 is configured to have a rounded rectangular outer contour. Through this design, the first body 11 has a more rounded shape, thereby avoiding the occurrence of injuries to the staff when the first body 11 has a sharp shape.
[0036] like Figure 2 As shown, in one embodiment of the present invention, the positioning groove 12 is configured as a rectangular groove body. Through this design, the shape of the positioning groove 12 is closer to the shape of the circuit board 3, thereby facilitating the stable pressing and fixing of the circuit board 3.
[0037] like Figure 2 As shown, in one embodiment of the present invention, for the purpose of convenient processing and safe operation, the positioning groove 12 is configured to have a rounded rectangular cross-section.
[0038] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the first positioning holes 13 around each positioning groove 12 are symmetrically distributed on the left and right sides of the positioning groove 12 .
[0039] Preferably, three first positioning holes 13 are arranged on one side of each positioning groove 12 .
[0040] like Figure 3 As shown, in one embodiment of the utility model, the pressing frame 2 includes a plurality of fixing bars 23 that are transversely connected to the upper side of the second body 21. Through this design, on the one hand, the staff can move the pressing frame 2 by taking the fixing bars 23, thereby facilitating the staff's operation. On the other hand, the fixing bars 23 are transversely connected to the upper side of the second body 21, connecting the two side walls of the second body 21 that are separated from each other, thereby enhancing the structural stability of the pressing frame 2, which is conducive to the pressing frame 2 to more smoothly realize accurate pressing and positioning of the circuit board 3.
[0041] Preferably, the number of the fixing bars 23 is two.
[0042] like Figure 1 and Figure 4 As shown, in one embodiment of the utility model, the device 100 includes a functional cover 5 that is configured to cover the top of the positioning plate 1. Through the design of the functional cover 5, the circuit board 3 that has been sealed is isolated from the outside world, thereby preventing foreign objects from falling onto the sealing layer and contaminating the sealing layer, thereby affecting the performance of the circuit board 3.
[0043] Preferably, in one embodiment of the utility model, a connection port 51 is provided on the functional cover 5. The connection port 51 is used to connect with a vacuum pumping device (not shown, the same below) in the outside to perform a vacuum pumping operation on the area surrounded by the functional cover 5 and the positioning plate 1, that is, the design of the connection port 51 expands the functions that can be achieved by the functional cover 5, so that the functional cover 5 can be used to achieve a vacuum pumping operation on the sealing layer, thereby greatly reducing the probability of bubbles in the sealing layer, and further helping to improve the sealing quality.
[0044] Preferably, the functional cover 5 is configured to have an outer contour of a cuboid. Preferably, the functional cover 5 is configured to have an outer contour of a cuboid with chamfered corners.
[0045] like Figure 1 and Figure 2 As shown, in one embodiment of the utility model, a sealing groove 14 is provided on the upper surface of the positioning plate 1, which surrounds all the positioning grooves 12 and has a shape corresponding to the transverse cross-section of the functional cover 5. A sealing ring can be placed in the sealing groove 14 to achieve a good sealing function for the connection between the functional cover 5 and the positioning plate 1, so that the bubbles in the sealing layer can be eliminated more thoroughly, which helps to further improve the sealing quality.
[0046] Preferably, the sealing groove 14 is configured in a rectangular shape.
[0047] Preferably, the sealing groove 14 is configured as a rounded rectangle.
[0048] In one embodiment of the utility model, the functional cover 5 is made of a transparent material. With this design, the staff can observe in real time whether there are bubbles in the sealing layer that need to be removed during the vacuuming operation, so as to judge whether the vacuuming operation needs to be continued. That is, this design facilitates the staff to accurately control the vacuuming operation.
[0049] like Figure 1 and Figure 2 As shown, in one embodiment of the utility model, the positioning grooves 12 are configured to be evenly distributed on the first body 11. Through this design, the space of the first body 11 can be utilized to the maximum extent, thereby helping to improve the efficiency of the sealing operation. In addition, this design is also conducive to reducing the processing difficulty of the processing and manufacturing personnel.
[0050] Preferably, in an embodiment of the present invention, eight positioning grooves 12 are evenly distributed in the transverse direction on the first body 11 .
[0051] Preferably, in an embodiment of the present utility model, the first body 11 is configured to have a rectangular outer contour, and the positioning groove 12 is configured to be a rectangular groove body.
[0052] like Figure 3 As shown, in one embodiment of the utility model, the second positioning hole 22 is configured as a stepped hole. With this design, the positioning bolt 4 does not protrude from the upper surface of the pressing frame 2 after the connection is completed, so that on the one hand, the positioning bolt 4 is not easily bumped by external objects, which helps the positioning bolt 4 maintain a stable connection state. On the other hand, it also allows the circuit board 3 and the pressing frame 2 assembly after the sealing to maintain a flat surface after being installed on the downhole drilling tool, so that it is not easy to fall off due to external collisions.
[0053] like Figure 3 As shown, in one embodiment of the present invention, a first chamfer 211 is provided at the closed end of the second body 21. Through this design, the shape of the second body 21 is more rounded, thereby avoiding the occurrence of injuries to the staff when the second body 21 has a sharp shape.
[0054] like Figure 3 As shown, in one embodiment of the present invention, a second chamfer 212 is provided at the open end of the second body 21. Through this design, the shape of the second body 21 is more rounded, thereby avoiding the occurrence of injuries to the staff when the second body 21 has a sharp shape.
[0055] In one embodiment of the utility model, the first positioning hole 13 and the second positioning hole 22 are both configured as threaded holes, and the positioning bolt 4 is configured as a bolt corresponding to the first positioning hole 13 and the second positioning hole 22. Through this design, the positioning bolt 4 can be threadedly connected with the pressing frame 2 and the positioning plate 1, so that the circuit board 3 can be more firmly positioned between the pressing frame 2 and the positioning plate 1, and the device 100 can better play its role in improving the quality of the sealing glue.
[0056] According to the device 100 of the utility model, by designing and combining components such as the positioning plate 1, the pressure frame 2 and the functional cover 5, while achieving high-quality sealing of the circuit board 3 with accurate position, uniform thickness and low bubble rate, it is also possible to seal multiple circuit boards 3 at the same time, thereby greatly improving the efficiency of the sealing operation of the circuit board 3, and having good application prospects.
[0057] In the present invention, the specific meanings of the terms "upper", "lower", "left", "right", "inner", "outer", "middle", "side" and the like when indicating directions are as follows: Figure 1 The drawing state of the device 100 is used as a reference.
[0058] In the present utility model, "several" refers to a natural number not less than "1".
[0059] Finally, it should be noted that although the present invention has been described in detail with reference to the preferred embodiments, various improvements may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A circuit board sealing device for oil drilling tools, characterized in that: include: A positioning plate (1) comprises a first main body (11) having a plate-like structure, and a plurality of positioning grooves (12) arranged on the upper surface of the first main body (11), and a plurality of first positioning holes (13) are arranged around each of the positioning grooves (12); and A pressing frame (2) comprises a second main body (21) having a U-shaped cross section, and a second positioning hole (22) arranged on the second main body (21) and arranged corresponding to the first positioning hole (13). The pressing frame (2) is configured to press the oil drilling tool circuit board (3) onto the positioning groove (12) and fix it to the positioning plate (1) via a positioning bolt (4) so as to perform a sealing operation on the oil drilling tool circuit board (3).
2. The circuit board sealing device for oil drilling tools according to claim 1 is characterized in that: The pressing frame (2) comprises a plurality of fixing strips (23) which are laterally connected to the upper side of the second body (21).
3. The circuit board sealing device for oil drilling tools according to claim 2 is characterized in that: It comprises a functional cover (5) which is configured to cover the positioning plate (1).
4. The circuit board sealing device for oil drilling tools according to claim 3 is characterized in that: A connection port (51) for vacuuming is provided on the functional cover (5).
5. The circuit board sealing device for oil drilling tools according to claim 4, characterized in that: The positioning plate (1) comprises a sealing groove (14) which is opened on the upper surface and has a shape corresponding to the transverse cross section of the functional cover (5) and is used to place a sealing ring.
6. The circuit board sealing device for oil drilling tools according to claim 5, characterized in that: The functional cover (5) is made of transparent material.
7. The circuit board sealing device for oil drilling tools according to any one of claims 1 to 6, characterized in that: The positioning grooves (12) are configured to be evenly distributed on the first body (11).
8. The circuit board sealing device for oil drilling tools according to any one of claims 1 to 6, characterized in that: The second positioning hole (22) is configured as a stepped hole.
9. The circuit board sealing device for oil drilling tools according to any one of claims 1 to 6, characterized in that: A first chamfer (211) is provided at the closed end of the second body (21).
10. The circuit board sealing device for oil drilling tools according to any one of claims 1 to 6, characterized in that: A second chamfer (212) is provided at the open end of the second body (21).