Dustproof connector for small circuit board

Abstract

According to the dustproof connector for the small circuit board provided by the utility model, in the use process of the dustproof connector for the small circuit board, an external PCB is electrically connected with the power connection tube, and the external PCB is inserted into the two clamping openings to be clamped with the positioning ring. The dust shielding cap is taken down from the power connection threaded pipe, an external power connection head is inserted into the power connection threaded pipe, and the connection nut is connected to the power connection threaded pipe in a threaded mode so that the connection stability of the power connection threaded pipe and the external power connection head can be fixed. The connecting bolt and the reinforcing connecting ring improve the stability of mutual connection between the power connection pipe and the bearing ring and between the power connection pipe and the bearing pipe, so that the structural strength and the structural stability of the dustproof connector for the small circuit board are improved. When the dustproof connector for the small circuit board is in an idle state, the dust shielding cap is installed on the power connection threaded pipe, so that external dust and impurities are prevented from entering the power connection threaded pipe, and the dustproof connector for the small circuit board is prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a dustproof connector for a small circuit board. Background Art

[0002] Circuit boards can be called printed circuit boards or printed circuit boards, which are divided into PCB and FPC. FPC circuit boards are also called flexible circuit boards. Flexible circuit boards are made of polyimide or polyester film as a substrate, which are highly reliable and extremely flexible printed circuit boards. FPC circuit boards have the characteristics of high wiring density, light weight, thin thickness, and good bending properties. The form and structure of connectors are ever-changing. There are various forms of connectors depending on the application object, frequency, power, application environment, etc. No matter what kind of connector, it is necessary to ensure that the current flows smoothly, continuously and reliably.

[0003] However, conventional connectors for circuit boards, such as the technical solution disclosed in the patent with application number CN201980018678.3 and invention name Printed Circuit Board Connector, are not dustproof when the connector is idle, which can easily cause dust to contaminate the connector. Utility Model Content

[0004] Based on this, it is necessary to provide a dust-proof connector for a small circuit board to address the technical problem that the connector in the traditional circuit board connector cannot be dust-proof when idle, which easily causes dust to contaminate the connector.

[0005] A dustproof connector for a small circuit board, comprising: a locking mechanism, a dust shielding mechanism and a strengthening connection mechanism;

[0006] The clamping mechanism comprises an annular bearing plate, a positioning ring, a receiving threaded tube, an annular gasket and a fixing bolt; the receiving threaded tube is connected to the annular bearing plate, the positioning ring is connected to a side of the annular bearing plate facing away from the receiving threaded tube, and both sides of the positioning ring are provided with clamping openings for clamping and fixing an external PCB board; the annular gasket is sleeved on the receiving threaded tube and abuts against the annular bearing plate; the fixing bolt is adapted to the receiving threaded tube, the fixing bolt is sleeved on the receiving threaded tube and is threadedly connected to the receiving threaded tube;

[0007] The dust shielding mechanism comprises a connecting ring, a connecting rope and a dust shielding cap; the connecting ring is sleeved on the receiving threaded tube, the connecting ring is arranged between the annular gasket and the fixing bolt, and the annular gasket and the fixing bolt are both in contact with the connecting ring; the connecting ring is connected to the dust shielding cap via the connecting rope;

[0008] The reinforced connection mechanism includes a receiving tube, a receiving ring, a reinforced connecting ring, a connecting bolt, an electrical connecting tube, an electrical connecting threaded tube and a connecting nut; the receiving tube is connected to the end of the receiving threaded tube away from the annular bearing plate; the receiving ring is connected to the end of the receiving tube away from the receiving threaded tube; an annular retaining groove is provided at the end of the receiving tube close to the receiving ring, and a retaining ring is provided in the reinforced connecting ring, the retaining ring is adapted to the annular retaining groove, the retaining ring is accommodated in the annular retaining groove and connected to the receiving tube; the reinforced connecting ring is adapted to the receiving tube, the reinforced connecting ring is sleeved on the receiving tube and connected to the receiving tube; the connecting bolt and The receiving threaded tube is adapted, the connecting bolt is sleeved on the receiving threaded tube and screwed with the receiving threaded tube; the connecting bolt is sleeved on the receiving tube, the receiving ring and the reinforcing connecting ring; the power connection tube is connected to the receiving ring for electrical connection with an external PCB board; the end of the power connection tube away from the receiving ring is connected to the power connection threaded tube, and the power connection threaded tube is used to connect with an external power connection head; the connecting nut is screwed with the power connection threaded tube for fixing the connection stability between the power connection threaded tube and the external power connection head; the dust cover cap is adapted to the power connection threaded tube, the dust cover cap can be covered on the power connection threaded tube and screwed with the power connection threaded tube.

[0009] In one embodiment, the positioning ring and the annular supporting plate are integrally formed.

[0010] In one of the embodiments, the receiving threaded tube and the annular supporting plate are integrally formed.

[0011] In one embodiment, the connecting rope is a soft plastic rope.

[0012] In one embodiment, the connecting rope is a soft silicone rope.

[0013] In one embodiment, the connecting rope is a soft rubber rope.

[0014] In one of the embodiments, the reinforcing connection ring and the retaining ring are integrally formed.

[0015] In one of the embodiments, anti-slip grooves are provided on the outer wall of the connecting bolt.

[0016] In one of the embodiments, a plurality of anti-slip edges are provided on the outer wall of the connecting bolt.

[0017] In one of the embodiments, the anti-slip edges are evenly arranged on the outer wall of the connecting bolt.

[0018] During use of the dustproof connector for small circuit boards, the external PCB board is electrically connected to the power connection tube, and the external PCB board is inserted into the two clamping openings and clamped with the positioning ring. The dust cap is removed from the power connection threaded tube, the external power connection head is inserted into the power connection threaded tube, and the connecting nut is screwed onto the power connection threaded tube to fix the connection stability between the power connection threaded tube and the external power connection head. The connecting bolts and the reinforced connecting ring increase the stability of the connection between the power connection tube and the receiving ring and the receiving tube, thereby increasing the structural strength and structural stability of the dustproof connector for small circuit boards. When the dustproof connector for small circuit boards is in an idle state, the dust cap is installed on the power connection threaded tube to prevent external dust and impurities from entering the power connection threaded tube, thereby preventing the dustproof connector for small circuit boards from being contaminated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a dustproof connector for a small circuit board in one embodiment;

[0020] Figure 2 A schematic diagram of a portion of the structure of a dustproof connector for a small circuit board in one embodiment;

[0021] Figure 3 A schematic diagram of a portion of the structure of a dustproof connector for a small circuit board in one embodiment;

[0022] Figure 4 A schematic diagram of a portion of the structure of a dustproof connector for a small circuit board in one embodiment;

[0023] Figure 5 It is a partial structural schematic diagram of a dustproof connector for a small circuit board in another embodiment. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth so as to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below. In the description of the utility model, it is necessary to understand that the orientation or position relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or position relationship shown in the accompanying drawings, only for the convenience of describing the utility model 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 to the utility model.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0029] Please also read Figures 1 to 5 The utility model provides a dustproof connector 10 for a small circuit board. The dustproof connector 10 for a small circuit board includes: a locking mechanism 100, a dust shielding mechanism 200 and a strengthening connection mechanism 300.

[0030] The clamping mechanism 100 includes an annular carrier plate 110, a positioning ring 120, a receiving threaded tube 130, an annular gasket 140 and a fixing bolt 150. The receiving threaded tube 130 is connected to the annular carrier plate 110. In one embodiment, the receiving threaded tube 130 and the annular carrier plate 110 are integrally formed to increase the structural strength and structural stability of the clamping mechanism 100. The positioning ring 120 is connected to a side of the annular carrier plate 110 that is away from the receiving threaded tube 130. In this embodiment, the positioning ring 120 and the annular carrier plate 110 are integrally formed to increase the structural strength and structural stability of the clamping mechanism 100. Both sides of the positioning ring 120 are provided with clamping ports 101 for clamping and fixing an external PCB board. The annular gasket 140 is sleeved on the receiving threaded tube 130 and abuts against the annular carrier plate 110. The fixing bolt 150 is matched with the receiving threaded tube 130 , and the fixing bolt 150 is sleeved on the receiving threaded tube 130 and threadedly connected with the receiving threaded tube 130 .

[0031] The dust shielding mechanism 200 includes a connecting ring 210, a connecting rope 220, and a dust shielding cap 230. The connecting ring 210 is sleeved on the receiving threaded tube 130, and the connecting ring 210 is arranged between the annular gasket 140 and the fixing bolt 150, and the annular gasket 140 and the fixing bolt 150 are both in contact with the connecting ring 210. The connecting ring 210 is connected to the dust shielding cap 230 through the connecting rope 220. In this embodiment, the connecting rope 220 is a soft plastic rope. In another embodiment, the connecting rope 220 is a soft silicone rope. In yet another embodiment, the connecting rope 220 is a soft rubber rope.

[0032] The strengthening connection mechanism 300 includes a receiving tube 310, a receiving ring 320, a strengthening connection ring 330, a connecting bolt 340, an electrical connection tube 350, an electrical connection threaded tube 360 ​​and a connecting nut 370. The receiving tube 310 is connected to the end of the receiving threaded tube 130 away from the annular bearing plate 110. The receiving ring 320 is connected to the end of the receiving tube 310 away from the receiving threaded tube 130. An annular clamping groove 301 is provided at the end of the receiving tube 310 close to the receiving ring 320, and a clamping ring (not shown) is provided in the strengthening connection ring 330. In this embodiment, the strengthening connection ring 330 and the clamping ring are integrally formed to increase the structural strength and structural stability of the strengthening connection ring 330. The clamping ring is adapted to the annular clamping groove 301, and the clamping ring is received in the annular clamping groove 301 and connected to the receiving tube 310. The reinforcing connecting ring 330 is adapted to the receiving tube 310, and the reinforcing connecting ring 330 is sleeved on the receiving tube 310 and connected to the receiving tube 310. The connecting bolt 340 is adapted to the receiving threaded tube 130, and the connecting bolt 340 is sleeved on the receiving threaded tube 130 and screwed to the receiving threaded tube 130. The connecting bolt 340 is sleeved on the receiving tube 310, the receiving ring 320 and the reinforcing connecting ring 330. The connecting tube 350 is connected to the receiving ring 320 for electrical connection with an external PCB board. One end of the connecting tube 350 away from the receiving ring 320 is connected to the connecting threaded tube 360, and the connecting threaded tube 360 ​​is used to connect to an external electrical connector. The connecting nut 370 is screwed to the connecting threaded tube 360 ​​for fixing the connection stability between the connecting threaded tube 360 ​​and the external electrical connector. The dust shielding cap 230 is matched with the electrical threaded tube 360 ​​, and the dust shielding cap 230 can be covered on the electrical threaded tube 360 ​​and screwed with the electrical threaded tube 360 ​​.

[0033] In order to facilitate the rotation of the connecting bolt 340, in one embodiment, an anti-skid pattern is provided on the outer wall of the connecting bolt 340. In another embodiment, a plurality of anti-skid edges are provided on the outer wall of the connecting bolt 340. Further, in this embodiment, the anti-skid edges are evenly provided on the outer wall of the connecting bolt 340. In this way, the anti-skid performance of the outer wall of the connecting bolt 340 is increased, and the friction between the outer wall of the connecting bolt 340 and the hand is increased, so that the screw bolt is easily rotated.

[0034] During use, the dustproof connector 10 for small circuit boards electrically connects the external PCB board to the power connection tube 350, inserts the external PCB board into the two clamping ports 101 and clamps with the positioning ring 120. Remove the dust cap 230 from the power connection threaded tube 360, insert the external power connection head into the power connection threaded tube 360, and screw the connecting nut 370 on the power connection threaded tube 360 ​​to fix the connection stability between the power connection threaded tube 360 ​​and the external power connection head. The connecting bolt 340 and the reinforcing connecting ring 330 increase the stability of the connection between the power connection tube 350 and the receiving ring 320 and the receiving tube 310, thereby increasing the structural strength and structural stability of the dustproof connector 10 for small circuit boards. When the dustproof connector 10 for small circuit boards is in an idle state, the dust cap 230 is installed on the power connection threaded tube 360 ​​to prevent external dust and impurities from entering the power connection threaded tube 360, thereby preventing the dustproof connector 10 for small circuit boards from being contaminated.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A dustproof connector for a small circuit board, characterized in that: include: Positioning mechanism, dust shielding mechanism and strengthening connection mechanism; The clamping mechanism comprises an annular bearing plate, a positioning ring, a receiving threaded tube, an annular gasket and a fixing bolt; the receiving threaded tube is connected to the annular bearing plate, the positioning ring is connected to a side of the annular bearing plate facing away from the receiving threaded tube, and both sides of the positioning ring are provided with clamping openings for clamping and fixing an external PCB board; the annular gasket is sleeved on the receiving threaded tube and abuts against the annular bearing plate; the fixing bolt is adapted to the receiving threaded tube, the fixing bolt is sleeved on the receiving threaded tube and is threadedly connected to the receiving threaded tube; The dust shielding mechanism comprises a connecting ring, a connecting rope and a dust shielding cap; the connecting ring is sleeved on the receiving threaded tube, the connecting ring is arranged between the annular gasket and the fixing bolt, and the annular gasket and the fixing bolt are both in contact with the connecting ring; the connecting ring is connected to the dust shielding cap via the connecting rope; The reinforced connection mechanism includes a receiving tube, a receiving ring, a reinforced connecting ring, a connecting bolt, an electrical connecting tube, an electrical connecting threaded tube and a connecting nut; the receiving tube is connected to the end of the receiving threaded tube away from the annular bearing plate; the receiving ring is connected to the end of the receiving tube away from the receiving threaded tube; an annular retaining groove is provided at the end of the receiving tube close to the receiving ring, and a retaining ring is provided in the reinforced connecting ring, the retaining ring is adapted to the annular retaining groove, the retaining ring is accommodated in the annular retaining groove and connected to the receiving tube; the reinforced connecting ring is adapted to the receiving tube, the reinforced connecting ring is sleeved on the receiving tube and connected to the receiving tube; the connecting bolt and The receiving threaded tube is adapted, the connecting bolt is sleeved on the receiving threaded tube and screwed with the receiving threaded tube; the connecting bolt is sleeved on the receiving tube, the receiving ring and the reinforcing connecting ring; the power connection tube is connected to the receiving ring for electrical connection with an external PCB board; the end of the power connection tube away from the receiving ring is connected to the power connection threaded tube, and the power connection threaded tube is used to connect with an external power connection head; the connecting nut is screwed with the power connection threaded tube for fixing the connection stability between the power connection threaded tube and the external power connection head; the dust cover cap is adapted to the power connection threaded tube, the dust cover cap can be covered on the power connection threaded tube and screwed with the power connection threaded tube.

2. The dustproof connector for a small circuit board according to claim 1, characterized in that: The positioning ring and the annular bearing plate are integrally formed.

3. The dustproof connector for a small circuit board according to claim 1, characterized in that: The receiving threaded pipe and the annular bearing plate are integrally formed.

4. The dustproof connector for a small circuit board according to claim 1, characterized in that: The connecting rope is a soft plastic rope.

5. The dustproof connector for a small circuit board according to claim 1, characterized in that: The connecting rope is a soft silicone rope.

6. The dustproof connector for a small circuit board according to claim 1, characterized in that: The connecting rope is a soft rubber rope.

7. The dustproof connector for a small circuit board according to claim 1, characterized in that: The reinforcing connection ring and the retaining ring are integrally formed.

8. The dustproof connector for a small circuit board according to claim 1, characterized in that: Anti-slip grooves are arranged on the outer wall of the connecting bolt.

9. The dustproof connector for a small circuit board according to claim 1, characterized in that: A plurality of anti-slip edges are arranged on the outer wall of the connecting bolt.

10. The dustproof connector for a small circuit board according to claim 9, characterized in that: The anti-slip edges are evenly arranged on the outer wall of the connecting bolt.

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