Substrate structure for pressure sensor

Abstract

The utility model relates to the technical field of substrate structures of pressure sensors, and discloses a substrate structure for a pressure sensor, which comprises a pressure sensor substrate, welding spots, pins and a fixing frame, the welding spots are arranged at the bottom of the pressure sensor substrate at equal intervals, the pins are connected to the bottom of the pressure sensor substrate at equal intervals, and the fixing frame is arranged on the pressure sensor substrate. The pressure sensor substrate is sleeved with the fixing frame, T-shaped grooves are formed in the two ends of the interior of the fixing frame, trapezoidal plates are slidably connected to the interiors of the T-shaped grooves, first springs are fixedly connected to the interiors of the T-shaped grooves, the first springs are connected with the trapezoidal plates, and the bottoms of the L-shaped plates are designed to be inclined planes. According to the substrate structure used for the pressure sensor, the pressure sensor substrate is rapidly fixed and limited, traditional bolt type fixation is not needed, the installation speed of the pressure sensor substrate is improved, and meanwhile the pressure sensor substrate is prevented from being damaged in the installation process.

Description

Technical Field

[0001] The utility model relates to the technical field of substrate structures of pressure sensors, in particular to a substrate structure used for a pressure sensor. Background Art

[0002] A pressure sensor is a sensor used to measure pressure, and is commonly used in industrial control, automotive industry, medical equipment and other fields. It can convert pressure signals into electrical signal outputs, thereby realizing the monitoring and control of pressure. The pressure sensor is composed of components such as a housing and a connector, a signal processing circuit and a pressure sensitive element. The signal processing circuit contains a substrate, which is used to support and connect the basic components of electronic components. It is usually composed of one or more layers of insulating materials and conductive layers. When installing, the substrate in the pressure sensor is usually inserted into the top of the circuit board for installation. However, when installing the substrate, it may not be aligned with the slot on the top of the circuit board, which may cause the bottom connection pins to bend, which may cause damage to the substrate. At the same time, the substrate is usually fixed by bolts during installation. The bolts may be damaged by being squeezed or loosened due to rotating too deep or too shallow, which may cause poor contact when the substrate is used. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a substrate structure for a pressure sensor to solve the problem that the above-mentioned substrate may not be aligned with the slots on the top of the circuit board during installation, which may cause the connecting pins at the bottom to bend and possibly cause damage to the substrate. At the same time, the substrate is usually fixed by bolts during installation, and the bolts may be damaged by being squeezed or loosened due to being rotated too deep or too shallow, which may cause poor contact of the substrate when it is used.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A substrate structure for a pressure sensor, comprising: a pressure sensor substrate, solder joints, pins and a fixing frame, wherein the solder joints are arranged at equal intervals at the bottom of the pressure sensor substrate, the pins are connected at equal intervals at the bottom of the pressure sensor substrate, the fixing frame is sleeved on the outside of the pressure sensor substrate, T-shaped grooves are arranged at both ends of the interior of the fixing frame, and a trapezoidal plate is slidably connected to the interior of the T-shaped groove, a first spring is fixedly connected to the interior of the T-shaped groove, and the first spring is connected to the trapezoidal plate.

[0007] Both ends of the pressure sensor substrate are connected to a positioning mechanism, and the positioning mechanism is inserted into the inside of the T-shaped groove. The positioning mechanism includes an L-shaped hollow column, and the inside of the L-shaped hollow column is slidably connected to an L-shaped plate, and the outside of the L-shaped plate is evenly connected to second springs, and the second springs are connected to the inner wall of the L-shaped hollow column. A positioning groove is opened on the outside of the L-shaped plate, and the positioning groove is slidably connected to the trapezoidal plate.

[0008] Preferably, threaded fixing grooves are evenly spaced at the four corners of the top of the fixing frame, and threaded grooves are provided inside the threaded fixing grooves, so that the threaded fixing grooves facilitate fixing and limiting the fixing frame.

[0009] Preferably, a protection pad is embedded in the inner wall of the fixing frame, and the protection pad is slidably connected to the pressure sensor substrate, so that the protection pad prevents the fixing frame from wearing the pressure sensor substrate.

[0010] Preferably, one end of the L-shaped plate away from the pressure sensor substrate is fixedly connected with a pressing plate, and the pressing plate is a square plastic plate, which facilitates the staff to drive the L-shaped plate to move.

[0011] Preferably, the bottom of the L-shaped plate is designed as an inclined surface, and the L-shaped plate fits with the T-shaped slot, so that the L-shaped plate can drive the trapezoidal plate to move.

[0012] Preferably, the end of the trapezoidal plate away from the first spring is designed as an inclined surface, and the first spring fits in the positioning groove, so that the trapezoidal plate can be easily retracted into the inside of the T-shaped groove by the trapezoidal plate.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a substrate structure for a pressure sensor, which has the following beneficial effects:

[0015] The substrate structure for the pressure sensor automatically corrects the position of the pressure sensor substrate through the cooperation of the additional fixing frame and the positioning mechanism when the pressure sensor substrate inside the pressure sensor needs to be loaded and unloaded, thereby avoiding bending of the pins at the bottom of the pressure sensor substrate due to misalignment with the notches of the circuit board during installation. At the same time, the cooperation of the fixing frame and the positioning mechanism can quickly fix and limit the pressure sensor substrate without the need for traditional bolt-type fixing, thereby improving the installation speed of the pressure sensor substrate and avoiding damage to the pressure sensor substrate during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front schematic diagram of the utility model;

[0017] Figure 2 This is a front view schematic diagram of the pressure sensor substrate of the utility model;

[0018] Figure 3 This is a front sectional view of the fixing frame of the utility model;

[0019] Figure 4 Practical Figure 3 A magnified schematic diagram of point A;

[0020] Figure 5 This is a front sectional view of the positioning mechanism of the utility model.

[0021] In the figure: 1. pressure sensor substrate; 2. solder joint; 3. pin; 4. fixing frame; 41. T-slot; 42. trapezoidal plate; 43. first spring; 44. threaded fixing groove; 45. protection pad; 5. positioning mechanism; 51. L-shaped hollow column; 52. second spring; 53. L-shaped plate; 531. pressure plate; 54. positioning groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides a technical solution, please refer to Figure 1 and Figure 2 A substrate structure for a pressure sensor includes: a pressure sensor substrate 1, solder joints 2, pins 3 and a fixing frame 4. This scheme is a structural improvement on the non-electronic component part based on the substrate structure of the pressure sensor in the prior art, wherein the pressure sensor substrate 1, solder joints 2 and pins 3 are common substrate structure products of pressure sensors that have been promoted in the prior art. The solder joints 2 facilitate the connection of the pressure sensor substrate 1 with the circuit inside the pressure sensor, the pins 3 facilitate the connection of the pressure sensor substrate 1 with the circuit board, the fixing frame 4 can fix the position of the pressure sensor substrate 1, the solder joints 2 are evenly spaced at the bottom of the pressure sensor substrate 1, and the pins 3 are evenly spaced and connected to the bottom of the pressure sensor substrate 1.

[0024] See also Figure 3The fixed frame 4 is sleeved on the outside of the pressure sensor substrate 1, and T-shaped grooves 41 are opened at both ends of the interior of the fixed frame 4. The T-shaped groove 41 can guide the trapezoidal plate 42, and the interior of the T-shaped groove 41 is slidably connected with the trapezoidal plate 42, and the trapezoidal plate 42 can limit the position of the L-shaped plate 53. The end of the trapezoidal plate 42 away from the first spring 43 is designed as a slope, and the first spring 43 is matched with the positioning groove 54, so that the trapezoidal plate 42 can be easily retracted into the interior of the T-shaped groove 41 by the trapezoidal plate 42.

[0025] A first spring 43 is fixedly connected inside the T-slot 41. The first spring 43 can drive the trapezoidal plate 42 to move, and the first spring 43 is connected to the trapezoidal plate 42. Threaded fixing grooves 44 are evenly spaced at the four corners of the top of the fixed frame 4, and a threaded groove is opened inside the threaded fixing groove 44. The threaded fixing groove 44 is convenient for fixing and limiting the fixed frame 4. A protective pad 45 is embedded in the inner wall of the fixed frame 4, and the protective pad 45 is slidably connected to the pressure sensor substrate 1. The protective pad 45 prevents the fixed frame 4 from wearing the pressure sensor substrate 1.

[0026] See also Figure 4 Both ends of the pressure sensor substrate 1 are connected with a positioning mechanism 5, and the positioning mechanism 5 is inserted into the inside of the T-shaped slot 41. The positioning mechanism 5 includes an L-shaped hollow column 51, and the L-shaped hollow column 51 can be connected to the L-shaped plate 53. The inside of the L-shaped hollow column 51 is slidably connected with the L-shaped plate 53, and the L-shaped plate 53 can guide the pressure sensor substrate 1.

[0027] The end of the L-shaped plate 53 away from the pressure sensor substrate 1 is fixedly connected with a pressure plate 531, and the pressure plate 531 is a square plastic plate. The pressure plate 531 is convenient for the staff to drive the L-shaped plate 53 to move. The bottom of the L-shaped plate 53 is designed with an inclined surface, and the L-shaped plate 53 fits with the T-shaped slot 41. The L-shaped plate 53 can drive the trapezoidal plate 42 to move. The outside of the L-shaped plate 53 is evenly connected with second springs 52. The second springs 52 can support the L-shaped plate 53 and drive the L-shaped plate 53 to return, and the second spring 52 is connected to the inner wall of the L-shaped hollow column 51. A positioning groove 54 is opened on the outside of the L-shaped plate 53. The positioning groove 54 can cooperate with the trapezoidal plate 42 to limit the movement of the positioning mechanism 5, and the positioning groove 54 is slidably connected to the trapezoidal plate 42.

[0028] In this solution, the fixing frame 4 is first fixed to the top of the circuit board by bolts. When the pressure sensor substrate 1 needs to be fixed, the two sides of the pressure sensor substrate 1 are pinched by hand, and the pressure sensor substrate 1 is placed into the fixing frame 4 through the correction of the L-shaped plate 53 and the T-shaped slot 41, so that the pin 3 is aligned with the connecting slot on the circuit board. At the same time, when the L-shaped plate 53 is inserted into the T-shaped slot 41, it will drive the trapezoidal plate 42 to move. When waiting for the trapezoidal plate 42 to contact with the positioning slot 54, the first spring 43 will drive the trapezoidal plate 42 to be stuck in the inside of the positioning slot 54, and then complete the limit fixation of the pressure sensor substrate 1. At the same time, when the pressure sensor substrate 1 needs to be disassembled, the two pressure plates 531 are pinched by hand to drive the L-shaped plate 53 to move, so that the L-shaped plate 53 and the trapezoidal plate 42 are disengaged from the limit, and then the pressure sensor substrate 1 is disassembled and maintained.

[0029] When the pressure sensor substrate 1 inside the pressure sensor needs to be loaded and unloaded, the position of the pressure sensor substrate 1 is automatically corrected by the cooperation of the additional fixing frame 4 and the positioning mechanism 5, so as to avoid bending of the pins 3 at the bottom of the pressure sensor substrate 1 due to the misalignment with the grooves of the circuit board during installation. At the same time, the cooperation of the fixing frame 4 and the positioning mechanism 5 can quickly fix and limit the pressure sensor substrate 1 without the need for traditional bolt-type fixing, thereby improving the installation speed of the pressure sensor substrate 1 while avoiding damage to the pressure sensor substrate 1 during installation.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A substrate structure for a pressure sensor, comprising: A pressure sensor substrate (1), solder joints (2), pins (3) and a fixing frame (4), wherein the solder joints (2) are arranged at equal intervals on the bottom of the pressure sensor substrate (1), the pins (3) are connected to the bottom of the pressure sensor substrate (1) at equal intervals, and the fixing frame (4) is sleeved on the outside of the pressure sensor substrate (1), characterized in that: both ends of the interior of the fixing frame (4) are provided with T-shaped grooves (41), and the interior of the T-shaped groove (41) is slidably connected to a trapezoidal plate (42), and the interior of the T-shaped groove (41) is fixedly connected to a first spring (43), and the first spring (43) is connected to the trapezoidal plate (42); Both ends of the pressure sensor substrate (1) are connected to a positioning mechanism (5), and the positioning mechanism (5) is inserted into the interior of the T-shaped groove (41), the positioning mechanism (5) comprises an L-shaped hollow column (51), the interior of the L-shaped hollow column (51) is slidably connected to an L-shaped plate (53), the exterior of the L-shaped plate (53) is evenly connected to second springs (52), and the second springs (52) are connected to the inner wall of the L-shaped hollow column (51), and the exterior of the L-shaped plate (53) is provided with a positioning groove (54), and the positioning groove (54) is slidably connected to the trapezoidal plate (42).

2. A substrate structure for a pressure sensor according to claim 1, characterized in that: The four corners of the top of the fixing frame (4) are evenly spaced apart with thread fixing grooves (44), and a thread groove is provided inside the thread fixing groove (44).

3. The substrate structure for a pressure sensor according to claim 1, characterized in that: A protection pad (45) is embedded in the inner wall of the fixing frame (4), and the protection pad (45) is slidably connected to the pressure sensor substrate (1).

4. The substrate structure for a pressure sensor according to claim 1, characterized in that: One end of the L-shaped plate (53) away from the pressure sensor substrate (1) is fixedly connected to a pressing plate (531), and the pressing plate (531) is a square plastic plate.

5. The substrate structure for a pressure sensor according to claim 1, characterized in that: The bottom of the L-shaped plate (53) is designed as an inclined surface, and the L-shaped plate (53) fits in with the T-shaped groove (41).

6. The substrate structure for a pressure sensor according to claim 1, characterized in that: One end of the trapezoidal plate (42) away from the first spring (43) is designed as an inclined surface, and the first spring (43) fits in the positioning groove (54).

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