Control circuit board of rotating drop ultra-low interfacial tensiometer

Abstract

The utility model discloses a rotating drop ultra-low interface tensiometer control circuit board, which comprises a rotating drop ultra-low interface tensiometer control circuit board body and an installation substrate, two bonding pads are fixed on the installation substrate, and the installation substrate and the bonding pads are provided with via holes. A mounting hole is formed in the rotating drop ultra-low interfacial tensiometer control circuit board body, two slots are formed in the inner wall of the mounting hole, a first positive electrode part and a first negative electrode part are arranged in the two slots respectively, and a second positive electrode part and a second negative electrode part are arranged on the outer wall of the mounting substrate respectively; wherein one bonding pad is electrically connected with the second positive electrode part through the first conductive part, the other bonding pad is electrically connected with the second negative electrode part through the second conductive part, and after the limiting ring is inserted into the mounting hole, the first positive electrode part is electrically contacted with the second positive electrode part, and the first negative electrode part is electrically contacted with the second negative electrode part; according to the utility model, the mounting substrate and the mounting hole can be quickly dismounted and mounted through the dismounting and mounting assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating drop ultra-low interfacial tension meters, in particular to a rotating drop ultra-low interfacial tension meter control circuit board. Background Art

[0002] Interfacial tension is a key parameter in surface and interface research. The XZD-5 Spinning Drop Interfacial Tensiometer measures interfacial tension using the spinning drop (spin dr-op) method. It is widely used in the fields of petroleum, chemical engineering, colloid chemistry, medicine, pesticides, and more. The XZD-5's key technical specifications are as follows:

[0003] Sample tube inner diameter: Φ2Φ6 mm; interfacial tension measurement range: 100-10-5 mN / m; interfacial tension measurement accuracy: ±1% FS; optical system: 0.7X-5X high-definition zoom lens; video system: high-speed acquisition + PC software control; instrument dimensions: 420*320*260; lens travel range: 0-100 mm; instrument weight: 15 kg; measurement software: HARKE-SDT2.0; power supply: 220V / 3A / 50Hz; measurement temperature range: room temperature to 70°C; measurement method: spinning drop method; measurement type: interfacial tension. The XZD-5 spinning drop ultra-low interfacial tension meter has the following basic features: manual microscope measurement; video image tracking and measurement; electric heating temperature control; air heating control; constant temperature circulating water control system; and expansion and contraction sinusoidal and rectangular wave control.

[0004] When the above-mentioned rotating drop ultra-low interfacial tension meter control circuit board is damaged, if you want to replace the components, you need to clean the previous solder, then replace the components and solder them again, which can easily damage the circuit board and is difficult to replace, making it difficult to conduct subsequent inspection and maintenance of the circuit board.

[0005] Therefore, a control circuit board for a spinning drop ultra-low interfacial tension meter is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a rotating drop ultra-low interfacial tension meter control circuit board, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] A rotating drop ultra-low interfacial tension meter control circuit board includes a rotating drop ultra-low interfacial tension meter control circuit board body and a mounting substrate, two solder pads are fixed on the mounting substrate, and vias are provided on the mounting substrate and the solder pads. A mounting hole is provided on the rotating drop ultra-low interfacial tension meter control circuit board body, and two slots are provided on the inner wall of the mounting hole. A first positive electrode part and a first negative electrode part are respectively provided in the two slots. A second positive electrode part and a second negative electrode part are respectively provided on the outer wall of the mounting substrate, one of the solder pads is electrically connected to the second positive electrode part through the first conductive part, and the other solder pad is electrically connected to the second negative electrode part through the second conductive part. After the limiting ring is inserted into the mounting hole, the first positive electrode part is electrically contacted with the second positive electrode part, and the first negative electrode part is electrically contacted with the second negative electrode part. A disassembly and assembly component for fixing the mounting substrate in the mounting hole is provided on the mounting substrate.

[0009] In a rotating drop ultra-low interfacial tension meter control circuit board according to the utility model, the disassembly and assembly component includes a limit ring, a base plate and an annular plate, the base plate is fixedly connected to the bottom of the annular plate, the annular plate is rotatably connected to the inner lower end of the mounting base plate, the edge of the base plate is formed with at least two limit bumps, the limit ring is fixedly connected to the upper end edge of the mounting base plate, the top of the rotating drop ultra-low interfacial tension meter control circuit board body is located outside the mounting hole and is provided with an upper limit groove, and the bottom of the limit ring can Pressed into the interior of the upper limiting groove, the bottom of the rotating drop ultra-low interfacial tension meter control circuit board body is provided with a lower limiting groove connected to the mounting hole, and a plurality of limiting protrusions are equidistantly arranged on the top of the limiting protrusion, and a plurality of smooth protrusions are arranged at equal angles along the circumferential direction of the lower limiting groove inside the lower limiting groove, and a card slot is left between two adjacent smooth protrusions. The limiting protrusion can enter the lower limiting groove along the slot, and after the limiting protrusion is rotated, the limiting protrusion on the limiting protrusion can be stuck in the card slot.

[0010] In a rotating drop ultra-low interfacial tension meter control circuit board according to the utility model, an inner cavity is opened inside the mounting substrate, two clamps are formed on the upper edge of the annular plate, and a socket connected to the inner cavity is opened at the bottom of the mounting substrate. The clamp can be inserted into the inner cavity along the socket. After the clamp is misaligned with the socket, the clamp can be stuck inside the inner cavity.

[0011] In a control circuit board of a spinning drop ultra-low interfacial tension meter according to the utility model, a knob hole is provided at the bottom of the base plate.

[0012] In a rotating drop ultra-low interfacial tension meter control circuit board according to the utility model, the top of the limiting ring and the top of the rotating drop ultra-low interfacial tension meter control circuit board body are in the same plane.

[0013] In a spinning drop ultra-low interfacial tension meter control circuit board according to the utility model, the bottom of the base plate and the bottom of the spinning drop ultra-low interfacial tension meter control circuit board body are in the same plane.

[0014] The utility model also provides a spinning drop ultra-low interfacial tension meter, comprising the above-mentioned spinning drop ultra-low interfacial tension meter control circuit board.

[0015] The utility model has at least the following beneficial effects:

[0016] By using the provided soldering pads in conjunction with the mounting substrate, when replacing components, the mounting substrate can be directly removed from the control circuit board body of the spinning drop ultra-low interfacial tension instrument, and then replaced with a new mounting substrate, effectively extending the service life of the control circuit board body of the spinning drop ultra-low interfacial tension instrument;

[0017] The utility model can quickly fix the mounting base plate in the mounting hole by means of the disassembly assembly provided. When the mounting base plate needs to be removed, a flat-blade screwdriver is inserted into the knob hole and then rotated, thereby driving the limiting protrusion to rotate. When the limiting protrusion is directly below the slot, the disassembly assembly and the mounting base plate can be removed from the mounting hole by pulling up the bottom plate.

[0018] The inner cavity cooperates with the socket and the clamp to facilitate the disassembly and assembly of the annular plate and the mounting base plate. That is, when the mounting base plate needs to be replaced, there is no need to replace the entire disassembly and assembly assembly, which is convenient for subsequent inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 This is a front view structural diagram of the control circuit board of the rotating drop ultra-low interfacial tension instrument of the present invention;

[0021] Figure 2 This is a rear structural diagram of the control circuit board of the rotating drop ultra-low interfacial tension instrument of the present invention;

[0022] Figure 3 This is one of the partial cross-sectional structural diagrams of the control circuit board body of the rotating drop ultra-low interfacial tension instrument of the present invention;

[0023] Figure 4This is the second partial cross-sectional structural diagram of the control circuit board body of the rotating drop ultra-low interfacial tension instrument of the present invention;

[0024] Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part A;

[0025] Figure 6 This is a schematic structural diagram of the mounting base plate of the present utility model;

[0026] Figure 7 It is a partial structural diagram of the disassembly and assembly components of the utility model.

[0027] Description of Figure Numbers:

[0028] 1. Rotating drop ultra-low interfacial tension meter control circuit board body; 101. Mounting hole; 102. First positive electrode; 103. Upper limit slot; 104. Lower limit slot; 105. Smooth protrusion; 106. Slot; 107. First negative electrode;

[0029] 2. Mounting substrate; 201. Limiting ring; 202. Second positive electrode portion; 2021. First conductive portion; 203. Second negative electrode portion; 2031. Second conductive portion; 204. Inner cavity; 2023. Socket; 3. Solder pad; 4. Via hole; 5. Disassembly and assembly components; 501. Bottom plate; 502. Knob hole; 503. Limiting protrusion; 5031. Limiting protrusion; 504. Ring plate; 505. Chuck. DETAILED DESCRIPTION

[0030] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0031] Please refer to Figures 1 to 7 As shown, this embodiment provides a spinning drop ultra-low interfacial tension meter control circuit board, including a spinning drop ultra-low interfacial tension meter control circuit board body 1 and a mounting substrate 2, two solder pads 3 are fixed on the mounting substrate 2, and through holes 4 are provided on the mounting substrate 2 and the solder pads 3. The spinning drop ultra-low interfacial tension meter control circuit board body 1 is provided with a mounting hole 101, and two slots are provided on the inner wall of the mounting hole 101, and the two slots are respectively provided with a first positive electrode portion 102 and a first negative electrode portion 107, and the outer wall of the mounting substrate 2 is respectively provided with a second positive electrode portion 202 and a second negative electrode portion 203, wherein one of the solder pads 3 is electrically connected to the second positive electrode portion 202 through the first conductive portion 2021, and the other solder pad 3 is electrically connected to the second negative electrode portion 203 through the second conductive portion 2031. After the limiting ring 201 is inserted into the mounting hole 101, the first positive electrode portion 102 is electrically in contact with the second positive electrode portion 202, and the first negative electrode portion 107 is electrically in contact with the second negative electrode portion 203.

[0032] In this embodiment, a disassembly assembly 5 for fixing the mounting substrate 2 in the mounting hole 101 is provided on the mounting substrate 2, wherein the disassembly assembly 5 includes a limiting ring 201, a bottom plate 501 and an annular plate 504, the bottom plate 501 is fixedly connected to the bottom of the annular plate 504, the annular plate 504 is rotatably connected to the inner lower end of the mounting substrate 2, the edge of the bottom plate 501 is formed with at least two limiting protrusions 503, the limiting ring 201 is fixedly connected to the upper end edge of the mounting substrate 2, the top of the rotating drop ultra-low interfacial tension meter control circuit board body 1 is located outside the mounting hole 101 and is provided with an upper limit groove 103, the bottom of the limiting ring 201 can be pressed into the interior of the upper limit groove 103, A lower limit groove 104 connected to the mounting hole 101 is provided at the bottom of the rotating drop ultra-low interfacial tension meter control circuit board body 1, and a plurality of limit protrusions 5031 are equidistantly arranged on the top of the limit protrusion 503. A plurality of smooth protrusions 105 are arranged at equal angles along the circumferential direction of the lower limit groove 104 inside the lower limit groove 104, and a card slot 106 is left between two adjacent smooth protrusions 105. The limit protrusion 503 can enter the lower limit groove 104 along the slot. After the limit protrusion 503 is rotated, the limit protrusion 5031 on the limit protrusion 503 can be snapped into the card slot 106. In order to facilitate the rotation of the limit protrusion 503, a knob hole 502 is provided at the bottom of the base plate 501.

[0033] By adopting the above technical solution, when installing the mounting substrate 2, the mounting substrate 2 is inserted into the mounting hole 101, and the clamping head 505 is inserted into the slot, and then the mounting substrate 2 is pressed downward so that the limit ring 201 is pressed into the upper limit slot 103. At this time, the clamping head 505 extends into the lower limit slot 104, and then is inserted into the knob hole 502 through a flat-blade screwdriver, and then rotated, thereby driving the limit protrusion 503 to rotate, so that the limit protrusion 5031 is clamped into the clamping slot 106, and the fixing of the mounting substrate 2 is completed. When disassembling, a flat-blade screwdriver is inserted into the knob hole 502, and then rotated, thereby driving the limit protrusion 503 to rotate, so that the limit protrusion 503 is directly below the slot, and then the base plate 501 is pulled upward to remove the disassembly component 5 and the mounting substrate 2 from the mounting hole 101.

[0034] Specifically, in order to facilitate the disassembly and assembly of the assembly 5 and the mounting substrate 2, an inner cavity 204 is provided inside the mounting substrate 2, and two clamping heads 505 are formed on the upper edge of the annular plate 504. A socket 2023 connected to the inner cavity 204 is provided at the bottom of the mounting substrate 2, and the clamping head 505 can be inserted into the inner cavity 204 along the socket 2023. After the clamping head 505 is misaligned with the socket 2023, the clamping head 505 can be stuck in the inner cavity 204. By coordinating the inner cavity 204 with the socket 2023 and the clamping head 505, when the mounting substrate 2 needs to be replaced, there is no need to replace the entire disassembly and assembly assembly 5, which is convenient for subsequent inspection and maintenance. When the annular plate 504 and the mounting substrate 2 need to be separated, it is only necessary to rotate the bottom plate 501 so that the clamping head 505 rotates to just above the socket 2023, and then pull the bottom plate 501 downward to separate the annular plate 504 from the mounting substrate 2.

[0035] Specifically, in order to improve the aesthetics of the rotating drop ultra-low interfacial tension meter control circuit board, the top of the limit ring 201 is arranged in the same plane as the top of the rotating drop ultra-low interfacial tension meter control circuit board body 1, and the bottom of the bottom plate 501 is arranged in the same plane as the bottom of the rotating drop ultra-low interfacial tension meter control circuit board body 1.

[0036] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A rotating drop ultra-low interfacial tension meter control circuit board, comprising a rotating drop ultra-low interfacial tension meter control circuit board body (1) and a mounting substrate (2), wherein two solder pads (3) are fixed on the mounting substrate (2), and both the mounting substrate (2) and the solder pads (3) are provided with through holes (4), a mounting hole (101) is provided on the rotating drop ultra-low interfacial tension meter control circuit board body (1), two slots are provided on the inner wall of the mounting hole (101), a first positive electrode portion (102) and a first negative electrode portion (107) are provided in the two slots, respectively, and the mounting substrate (2) is provided with a plurality of through holes (4). The outer wall is provided with a second positive electrode portion (202) and a second negative electrode portion (203), wherein one of the welding pads (3) is electrically connected to the second positive electrode portion (202) through the first conductive portion (2021), and the other welding pad (3) is electrically connected to the second negative electrode portion (203) through the second conductive portion (2031). After the limiting ring (201) is inserted into the mounting hole (101), the first positive electrode portion (102) is electrically contacted with the second positive electrode portion (202), and the first negative electrode portion (107) is electrically contacted with the second negative electrode portion (203). It is characterized in that The mounting substrate (2) is provided with a disassembly assembly (5) for fixing the mounting substrate (2) in the mounting hole (101); The disassembly assembly (5) includes a limit ring (201), a base plate (501) and an annular plate (504), wherein the base plate (501) is fixedly connected to the bottom of the annular plate (504), and the annular plate (504) is rotatably connected to the inner lower end of the mounting substrate (2), and the edge of the base plate (501) is formed with at least two limit bumps (503), and the limit ring (201) is fixedly connected to the upper edge of the mounting substrate (2). The top of the rotating drop ultra-low interfacial tension meter control circuit board body (1) is located outside the mounting hole (101) and is provided with an upper limit groove (103), and the bottom of the limit ring (201) can be pressed into the inner part of the upper limit groove (103). A lower limiting groove (104) communicating with the mounting hole (101) is provided at the bottom of the control circuit board body (1) of the ultra-low interfacial tension meter; a plurality of limiting protrusions (5031) are equidistantly arranged on the top of the limiting protrusion (503); a plurality of smooth protrusions (105) are arranged at equal angles along the circumferential direction of the lower limiting groove (104) inside the lower limiting groove (104); a card slot (106) is left between two adjacent smooth protrusions (105); the limiting protrusion (503) can enter the lower limiting groove (104) along the slot; after the limiting protrusion (503) is rotated, the limiting protrusion (5031) on the limiting protrusion (503) can be snapped into the card slot (106).

2. A spinning drop ultra-low interfacial tension meter control circuit board according to claim 1, characterized in that: An inner cavity (204) is provided inside the mounting base plate (2), and two clamping heads (505) are formed on the upper edge of the annular plate (504).

3. A spinning drop ultra-low interfacial tension meter control circuit board according to claim 2, characterized in that: The bottom of the mounting substrate (2) is provided with a socket (2023) that is in communication with the interior of the inner cavity (204).

4. A spinning drop ultra-low interfacial tension meter control circuit board according to claim 3, characterized in that: The clamping head (505) can be inserted into the interior of the inner cavity (204) along the socket (2023); after the clamping head (505) and the socket (2023) are misaligned, the clamping head (505) can be clamped inside the inner cavity (204).

5. The control circuit board of the spinning drop ultra-low interfacial tension instrument according to claim 1, characterized in that: A knob hole (502) is provided at the bottom of the base plate (501).

6. The control circuit board of the spinning drop ultra-low interfacial tension instrument according to claim 1, characterized in that: The top of the limiting ring (201) and the top of the rotating drop ultra-low interfacial tension instrument control circuit board body (1) are located in the same plane.

7. The control circuit board of the spinning drop ultra-low interfacial tension instrument according to claim 1, characterized in that: The bottom of the bottom plate (501) and the bottom of the rotating drop ultra-low interfacial tension instrument control circuit board body (1) are located in the same plane.

8. A spinning drop ultra-low interfacial tension meter, characterized in that: The invention comprises a control circuit board of a spinning drop ultra-low interfacial tension instrument according to any one of claims 1 to 7.

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