Fixing structure of circuit board

Abstract

The utility model discloses a fixing structure of a circuit board, which relates to the technical field of circuit boards and comprises a first side plate, a second side plate and a second limiting clamping plate, the first side plate is fixedly connected to the outer wall of the top of a plastic shell, and the second side plate and the second limiting clamping plate are arranged on the outer wall of the top of the plastic shell. The number of the first limiting clamping plates is three, the bottom of the circuit board body makes contact with the outer wall of the top of the second side plate, and a mounting groove is formed in the top of the plastic shell. According to the utility model, the circuit board body can be fixed in the X-axis direction, the Y-axis direction and the Z-axis direction by directly utilizing the matching of the plastic part limiting clamping plates and the elastic buckles, so that the stability of the circuit board body after installation is ensured, and the traditional plastic column hot melting or screw fixation is not needed, so that the circuit board body is more convenient to assemble; and the whole fixing structure is simple and reliable, the cost is lower, and the fixing requirements of people on the circuit board body are met.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a fixing structure of a circuit board. Background Art

[0002] Circuit board, also known as circuit board or PCB board, is an important component used to connect and support electronic components and assemble them into circuits. It makes circuits miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] At present, the circuit board is generally fixed on the surface of the plastic shell by screwing or hot-melting plastic columns. However, the assembly process of these two methods is relatively complicated, resulting in a high installation cost of the circuit board, which cannot meet people's installation needs. Therefore, a circuit board fixing structure is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and propose a circuit board fixing structure. Its advantages are that the circuit board body can be fixed in three directions of X, Y and Z axis by directly using the plastic limit card plate and elastic buckle, ensuring the stability of the circuit board body after installation, without the need to use traditional plastic column hot melting or screw fixing, making the assembly of the circuit board body more convenient, and the whole fixing structure is simple and reliable, with lower cost, meeting people's needs for fixing the circuit board body.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fixing structure for a circuit board comprises a first side plate, the first side plate is fixedly connected to the top outer wall of a plastic shell, a second side plate and a second limiting card plate of the top outer wall of the plastic shell, the top outer wall of the first side plate is fixedly connected to the first limiting card plate, the number of the first limiting card plates is three, and the bottom of the circuit board body is in contact with the top outer wall of the second side plate.

[0007] Through the above technical solution: the stability of the circuit board after installation is guaranteed, and there is no need to use traditional plastic column hot melting or screw fixation, making the assembly of the circuit board more convenient, and the entire fixing structure is simple and reliable, with lower cost, meeting people's needs for fixing the circuit board.

[0008] The utility model is further configured that a mounting groove is provided on the top of the plastic shell, a connecting plate is provided on the top of the mounting groove, and the horizontal height of the connecting plate is the same as the horizontal height of the second side plate.

[0009] Through the above technical solution: the bottom of the circuit board body can be effectively supported by the connecting plate.

[0010] The utility model is further configured that a through slot is provided on one side outer wall of the connecting plate, an elastic buckle is provided on one side of the through slot, and a top outer wall of the elastic buckle contacts with a bottom outer wall of the circuit board body.

[0011] Through the above technical solution, the top of the circuit board body can be pressed against the top inner walls of the first limit clamping plate and the second limit clamping plate, thereby achieving the limit clamping connection of the circuit board body.

[0012] The utility model is further configured that a stopper is fixedly connected to the top outer wall of the elastic buckle, and the stopper is located at one side of the circuit board body.

[0013] Through the above technical solution: the right side of the circuit board body can be limited by the stopper to prevent the limiting plate from sliding out from the top of the elastic buckle.

[0014] The utility model is further configured that the cross section of the stopper is in a right-angle trapezoidal shape.

[0015] Through the above technical solution, the contact area between the bottom of the stopper and the elastic buckle can be made larger, thereby further ensuring the stability of the stopper.

[0016] The utility model is further configured that the first side plate, the second side plate, the connecting plate, the first limit clamping plate, the second limit clamping plate and the stopper are all made of plastic material.

[0017] Through the above technical solution: it is prevented that the first side plate, the second side plate, the connecting plate, the first limit card plate, the second limit card plate and the stopper cause damage to the circuit board body when they are limit-fixed.

[0018] The utility model is further configured such that an outer wall on one side of the first side plate is fixedly connected to a mounting seat, an inner wall on one side of the mounting seat is fixedly connected to springs distributed at equal distances, an end of the spring away from the inner wall of the mounting seat is fixedly connected to a movable plate, one side of the movable plate is fixedly connected to a connecting rod, an end of the connecting rod away from the movable plate is fixedly connected to a clamping plate, an outer wall on one side of the clamping plate is in contact with an outer wall on one side of the circuit board body, a rectangular groove is provided on an outer wall on one side of the first side plate, and the clamping plate passes through the inside of the rectangular groove.

[0019] Through the above technical solution, it is possible to achieve tight fixation of the circuit board body in the X-axis direction, further improving the fixing effect of the fixing structure on the circuit board body.

[0020] The utility model is further configured that a fixing plate is fixedly connected to an outer wall of one side of the first limiting clamping plate, and one end of the fixing plate away from the first limiting clamping plate is fixedly connected to another first limiting clamping plate.

[0021] Through the above technical solution: the three groups of first limit clamping plates can be fixedly connected through the fixing plate, thereby ensuring the stability of the first limit clamping plates.

[0022] The beneficial effects of the utility model are:

[0023] 1. In the utility model, the circuit board body can be fixed in the three directions of X, Y and Z axis by directly using the plastic limit card plate and the elastic buckle, thereby ensuring the stability of the circuit board body after installation. There is no need to use traditional plastic column hot melting or screw fixation, making the assembly of the circuit board body more convenient, and the entire fixing structure is simple, reliable and lower in cost, which meets people's needs for fixing the circuit board body.

[0024] 2. In the utility model, the circuit board body can be clamped and fixed in the X-axis direction. Specifically, a mounting seat, a spring and a movable plate are provided. When the staff moves the circuit board body in the direction close to the first limit card plate, when the circuit board body contacts the clamping plate, a thrust is applied to it to compress the spring. When the circuit board body is assembled in place, the thrust applied to one end of the circuit board body disappears. At this time, the spring in a compressed state will immediately reset and apply a thrust to the circuit board body in the direction close to the block until one end of the circuit board body contacts the block, thereby achieving fixation of the circuit board body in the X-axis direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the top structure of a plastic shell of a circuit board fixing structure proposed by the utility model;

[0026] Figure 2 A schematic diagram of the bottom structure of a plastic shell of a circuit board fixing structure proposed by the utility model;

[0027] Figure 3 A schematic diagram of a circuit board splitting structure of a circuit board fixing structure proposed by the utility model;

[0028] Figure 4 This is a split cross-sectional view of a circuit board of a fixing structure of a circuit board proposed by the utility model;

[0029] Figure 5 This is a front view of the internal structure of a mounting base of a circuit board fixing structure proposed by the utility model;

[0030] Figure 6 This is a back view of the internal structure of a mounting base of a circuit board fixing structure proposed by the utility model;

[0031] Figure 7 This is a schematic diagram of the overall structure of Example 2 of a fixing structure for a circuit board proposed by the utility model.

[0032] In the figure: 1, plastic shell; 2, circuit board body; 3, first side plate; 4, first limit card plate; 5, second limit card plate; 6, connecting plate; 7, through groove; 8, elastic buckle; 9, stopper; 10, mounting groove; 11, second side plate; 12, mounting seat; 13, spring; 14, movable plate; 15, connecting rod; 16, clamping plate; 17, rectangular groove; 18, fixed plate. DETAILED DESCRIPTION

[0033] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0036] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0037] Example 1

[0038] Reference Figure 1-Figure 4 A fixing structure of a circuit board includes a first side plate 3, the first side plate 3 is fixedly connected to the top outer wall of a plastic shell 1, a second side plate 11 of the top outer wall of the plastic shell 1 and a second limiting card plate 5, the top outer wall of the first side plate 3 is fixedly connected with a first limiting card plate 4, the number of the first limiting card plates 4 is three, the bottom of the circuit board body 2 is in contact with the top outer wall of the second side plate 11, the stability of the circuit board body 2 after installation is ensured, and there is no need to use traditional plastic column hot melting or screw fixing, so that the assembly of the circuit board body 2 is more convenient, and the entire fixing structure is simple, reliable, and lower in cost, which meets people's needs for fixing the circuit board body 2.

[0039] In order to ensure the stability of the circuit board body 2 after being fixed, refer to Figure 1 , Figure 3 A mounting groove 10 is provided at the top of the plastic shell 1, and a connecting plate 6 is provided at the top of the mounting groove 10. The horizontal height of the connecting plate 6 is the same as the horizontal height of the second side plate 11. The connecting plate 6 can effectively support the bottom of the circuit board body 2.

[0040] In order to achieve the locking and fixing of the circuit board body 2, refer to Figure 1-Figure 2 A through slot 7 is provided on one side outer wall of the connecting plate 6, and an elastic buckle 8 is provided on one side of the through slot 7. The top outer wall of the elastic buckle 8 contacts the bottom outer wall of the circuit board body 2. First, the elastic buckle 8 is pressed down and the circuit board body 2 is inserted in the direction close to the first side plate 3. When the circuit board body 2 is inserted, the elastic buckle 8 rebounds to a natural state to exert an upward elastic force on the circuit board body 2, pressing the top of the circuit board body 2 against the top inner wall of the first limiting card plate 4 and the second limiting card plate 5, thereby realizing the limiting clamping of the circuit board body 2.

[0041] In order to limit the right side of the circuit board body 2, refer to Figure 1 , Figure 3 The top outer wall of the elastic buckle 8 is fixedly connected with a stopper 9, which is located on one side of the circuit board body 2. The stopper 9 can limit the right side of the circuit board body 2 to prevent the limiting plate 2 from sliding out from the top of the elastic buckle 8.

[0042] In order to improve the stability of the stopper 9, refer to Figure 4 The cross section of the stopper 9 is a right-angled trapezoid, which can make the contact area between the bottom of the stopper 9 and the elastic buckle 8 larger, further ensuring the stability of the stopper 9.

[0043] In order to avoid damage to the circuit board body 2 during the fixing process, refer to Figure 1 The first side plate 3, the second side plate 11, the connecting plate 6, the first limit card plate 4, the second limit card plate 5 and the stopper 9 are all made of plastic material to prevent the first side plate 3, the second side plate 11, the connecting plate 6, the first limit card plate 4, the second limit card plate 5 and the stopper 9 from causing damage to the circuit board body 2 when limiting and fixing it.

[0044] Working principle: When it is necessary to fix the circuit board body 2 on the plastic shell 1, the staff can use the circuit board to press the elastic buckle 8 on the top of the connecting plate 6. When the elastic buckle 8 is subjected to pressure, it will drive the stopper 9 to move downward together. At this time, the blocking restriction of the circuit board body 2 by the elastic buckle 8 can be effectively released. Then the staff moves the circuit board in the direction close to the first side plate 3. When the circuit board is assembled in place, the elastic buckle 8 rebounds to its natural state to exert an upward elastic force on the circuit board body 2, pressing the top of the circuit board body 2 against the top inner wall of the first limit card plate 4 and the second limit card plate 5, thereby realizing the limited clamping of the circuit board body 2. At this time, the circuit board body 2 is completely fixed in the X, Y, and Z directions, ensuring the stability of the circuit board body 2 after installation, and there is no need to use traditional plastic column hot melting or screw fixing, making the assembly of the circuit board body 2 more convenient, and the entire fixing structure is simple, reliable, and has lower cost, which meets people's needs for fixing the circuit board body 2.

[0045] Example 2

[0046] Reference Figure 5 Figure 7 , a fixing structure of a circuit board, compared with embodiment 1, this embodiment also includes a first side plate 3 having an outer wall fixedly connected to a mounting seat 12, an inner wall of one side of the mounting seat 12 having springs 13 fixedly connected to an equidistant distribution, an end of the spring 13 away from the inner wall of the mounting seat 12 having a movable plate 14 fixedly connected, a connecting rod 15 fixedly connected to one side of the movable plate 14, an end of the connecting rod 15 away from the movable plate 14 having a clamping plate 16 fixedly connected, an outer wall of one side of the clamping plate 16 in contact with an outer wall of one side of the circuit board body 2, and an outer wall of one side of the first side plate 3 having a rectangular The clamping plate 16 passes through the rectangular groove 17. When the staff moves the circuit board body 2 toward the first limit card plate 4, when the circuit board body 2 contacts the clamping plate 16, a thrust is applied to it to compress the spring 13. When the circuit board body 2 is assembled in place, the thrust applied to one end of the circuit board body 2 disappears. At this time, the spring 13 in the compressed state will immediately reset and apply a thrust to the circuit board body 2 in the direction close to the stop block 9 until one end of the circuit board body 2 contacts the stop block 9, thereby achieving the fixation of the circuit board body 2 in the X-axis direction.

[0047] In order to ensure the stability of the first limit card plate 4, refer to Figure 7 A fixing plate 18 is fixedly connected to the outer wall of one side of the first limiting card plate 4, and one end of the fixing plate 18 away from the first limiting card plate 4 is fixedly connected to another first limiting card plate 4. The three groups of first limiting card plates 4 can be fixedly connected through the fixing plate 18, thereby ensuring the stability of the first limiting card plates 4.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board fixing structure, comprising a first side plate (3), characterized in that: The first side panel (3) is fixedly connected to the top outer wall of the plastic shell (1), the second side panel (11) and the second limit card plate (5) of the top outer wall of the plastic shell (1), the top outer wall of the first side panel (3) is fixedly connected to the first limit card plate (4), the number of the first limit card plates (4) is three groups, and the bottom of the circuit board body (2) is in contact with the top outer wall of the second side panel (11).

2. A circuit board fixing structure according to claim 1, characterized in that: A mounting groove (10) is provided on the top of the plastic shell (1), and a connecting plate (6) is provided on the top of the mounting groove (10), wherein the horizontal height of the connecting plate (6) is the same as the horizontal height of the second side plate (11).

3. A circuit board fixing structure according to claim 2, characterized in that: A through slot (7) is provided on one outer wall of the connecting plate (6), and an elastic buckle (8) is provided on one side of the through slot (7), wherein the top outer wall of the elastic buckle (8) contacts the bottom outer wall of the circuit board body (2).

4. A circuit board fixing structure according to claim 3, characterized in that: A stopper (9) is fixedly connected to the top outer wall of the elastic buckle (8), and the stopper (9) is located on one side of the circuit board body (2).

5. A circuit board fixing structure according to claim 4, characterized in that: The cross section of the stopper (9) is in the shape of a right-angle trapezoid.

6. A circuit board fixing structure according to claim 4, characterized in that: The first side plate (3), the second side plate (11), the connecting plate (6), the first limit clamping plate (4), the second limit clamping plate (5) and the stopper (9) are all made of plastic material.

7. A circuit board fixing structure according to claim 1, characterized in that: An outer wall of one side of the first side plate (3) is fixedly connected to a mounting seat (12), an inner wall of one side of the mounting seat (12) is fixedly connected to springs (13) distributed at equal distances, one end of the spring (13) away from the inner wall of the mounting seat (12) is fixedly connected to a movable plate (14), one side of the movable plate (14) is fixedly connected to a connecting rod (15), and one end of the connecting rod (15) away from the movable plate (14) is fixedly connected to a clamping plate (16), one outer wall of one side of the clamping plate (16) is in contact with an outer wall of one side of the circuit board body (2), and a rectangular groove (17) is provided on the outer wall of one side of the first side plate (3), and the clamping plate (16) passes through the inside of the rectangular groove (17).

8. A circuit board fixing structure according to claim 7, characterized in that: A fixing plate (18) is fixedly connected to an outer wall of one side of the first limiting clamping plate (4), and one end of the fixing plate (18) away from the first limiting clamping plate (4) is fixedly connected to another first limiting clamping plate (4).

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