Hidden ventilation port type program programming port structure

Abstract

The utility model provides a hidden ventilation port type program programming port structure which comprises an upper shell used for packaging an instrument and a circuit board used by the instrument, an annular groove is formed in the top face of the upper shell, a square programming hole is formed in the center position, right opposite to a programming seat interface, of an enclosed area of the annular groove, and the programming hole is covered with a waterproof ventilation film; the upper shell is provided with a cover corresponding to the waterproof breathable film, the cover and the annular groove are detachably connected and fixed, and an air duct for communicating the waterproof breathable film with the outside is arranged between the cover and the annular groove. The device is good in stability, resistant to high and low temperature, simple and efficient to produce and use, and capable of effectively solving the problem of later program burning.

Description

Technical Field

[0001] The utility model belongs to the technical field of instrument circuit board burning, in particular to a hidden air-permeable program burning port structure. Background Art

[0002] In the lighting and instrument structures of two-wheeled or three-wheeled electric vehicles, in order to improve product compatibility and enhance the user experience, most instrument products require subsequent upgrades, which requires re-programming of the circuit boards.

[0003] Currently, two methods are used to reprogram instrument circuit boards. One involves directly exposing the programming port. This involves creating a programming port on the upper shell of the packaged circuit board and sealing it with a sealant. To reprogram, the sealant is removed to expose the port. The programming probe is then inserted through the port into the programming socket on the circuit board to reprogram the program. After programming is complete, the sealant is re-sealed. However, this method can lead to a loose seal, resulting in water leakage during subsequent use, which can shorten the product lifecycle. The second programming method involves programming over a general wireless network, which has high initial development costs and slow subsequent programming speeds.

[0004] In addition, the circuit board will heat up during the use of the instrument, the air pressure inside the instrument will increase, and the gas will expand, which may easily cause the upper and lower shells of the instrument to bulge and separate, affecting the sealing effect of the instrument and the circuit board, and ultimately causing water leakage, damage to the circuit board, and affecting the use of the instrument. Utility Model Content

[0005] In view of this, the utility model aims to propose a hidden vent-type program burning port structure to solve the problem of later program burning of the instrument. At the same time, the burning port has the advantages of being waterproof, breathable and low cost.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] A hidden vent-type program burning port structure includes an upper shell that encapsulates an instrument and a circuit board used in the instrument. The top surface of the upper shell is provided with an annular groove at a position corresponding to a burning seat on the circuit board. The inner and outer groove walls of the annular groove protrude from the bottom surface of the upper shell. A square burning hole is provided in the center of the enclosed area of ​​the annular groove, facing the burning seat interface. The burning hole is covered with a waterproof and breathable membrane.

[0008] The upper shell is provided with a cover corresponding to the waterproof breathable membrane. The cover and the annular groove are detachably connected and fixed. An air duct is provided between the cover and the annular groove to connect the waterproof breathable membrane with the outside world.

[0009] Furthermore, two arc-shaped pressing protrusions are provided on the bottom surface of the cover, and the two pressing protrusions are provided on the ends thereof to form a first ventilation gap, and the two pressing protrusions press and fix the waterproof breathable membrane;

[0010] The bottom surface of the cover is further provided with an inserting portion, which is interference fitted in the annular groove, and an air flow channel is provided between the inserting portion and the annular groove.

[0011] Furthermore, the plug-in part is an annular plate structure, and its inner and outer sides are respectively provided with ribs vertically. The ribs and the annular groove are interference fitted, and a distance is left between the bottom surface of the plug-in part and the bottom of the annular groove.

[0012] Furthermore, the top surface of the upper shell is provided with a receiving groove, the annular groove is provided at the bottom of the receiving groove, a step surface is formed between the receiving groove and the annular groove, and two inclined grooves are symmetrically provided on the top surface of the upper shell, each of which is connected to the receiving groove, and the inclined grooves are connected to the annular groove after passing through the step surface obliquely downward;

[0013] The cover is embedded in the accommodating groove, and the edge of the cover and the plug-in portion form an outer edge, and the outer edge faces the step surface.

[0014] Furthermore, two second ventilation gaps are provided at the bottom end of the plug-in portion, and the positions of the two second ventilation gaps correspond to the two oblique grooves.

[0015] Furthermore, the position of the second ventilation gap corresponds to the first ventilation gap.

[0016] Furthermore, the portion of the plug-in portion above the second ventilation notch is a shielding portion, the thickness of which is smaller than that of the plug-in portion. The shielding portion is located on the outer side of the plug-in portion and sits inside the circumferential surface, facing the oblique groove.

[0017] Compared with the prior art, the hidden ventilation port structure of the present invention has the following advantages:

[0018] The utility model has good stability, high and low temperature resistance, simple and efficient production and use, and effectively solves the problem of late program burning. The burning hole is covered with a waterproof breathable membrane, and the burning hole is correspondingly provided with a cover, so that the burning hole is hidden in the shell. The setting of the burning hole, the waterproof breathable membrane and the vent on the cover enables the instrument to have a ventilation function, and the inside of the instrument is connected with the outside world, so as to balance the internal air pressure of the instrument and ensure the sealing effect of the instrument. At the same time, the burning hole is also used to insert the burning target to perform burning operations on the circuit board, so as to realize the modification and upgrade of the instrument program. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the writing port in the embodiment of the top cover of the instrument without a waterproof breathable membrane and a cover;

[0021] Figure 2 This is an enlarged view of the burning port structure in this embodiment without a waterproof breathable membrane and a cover;

[0022] Figure 3 This is a schematic diagram of the structure of the burning port on the upper shell of the instrument in this embodiment;

[0023] Figure 4 This is a schematic diagram of the structure of the writing port with a waterproof and breathable membrane in this embodiment;

[0024] Figure 5 This is a schematic diagram of the structure of the vent type program burning port described in this embodiment;

[0025] Figure 6 Schematic diagram of the cover structure in this embodiment;

[0026] Figure 7 for Figure 5 AA view;

[0027] Figure 8 for Figure 5 BB view;

[0028] Figure 9 This is an airflow state diagram of the burning port structure described in this embodiment.

[0029] Description of reference numerals:

[0030] 1-upper shell; 11-burning hole; 12-ring groove; 14-step surface; 15-bevel groove; 16-enclosed area; 2-cover; 21-plug-in part; 22-convex rib; 23-shielding part; 24-crimping protrusion; 26-second ventilation gap; 27-outer eaves; 29-first ventilation gap; 3-waterproof breathable membrane; 4-breathable space; 5-second ventilation channel; 6-third ventilation channel; 7-first ventilation channel. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0032] like Figure 1 、 Figure 2 and Figure 3As shown, a hidden vent-type program burning port structure includes an upper shell 1 that encapsulates an instrument and a circuit board used by the instrument. The upper shell 1 is an injection molded part, and its top surface is provided with a circular receiving groove at the position corresponding to the burning seat on the circuit board. The bottom of the receiving groove is provided with an annular groove 12, and the inner and outer groove walls of the annular groove 12 protrude from the bottom surface of the upper shell 1. A burning hole 11 is provided at the center of the enclosed area 16 enclosed by the annular groove 12. The burning hole 11 is a rectangular hole corresponding to the burning needle and facing the burning seat interface, so as to facilitate the burning needle to be inserted into the burning seat interface through the burning hole for burning operations. The top of the burning hole 11 is covered with a waterproof and breathable membrane 3, which shields and covers the burning hole 11. Figure 4 The upper shell 1 is provided with a cover 2 corresponding to the waterproof breathable membrane 3. The cover 2 is embedded in the receiving groove and is detachably connected to the ring groove 12. The cover 2 seals the waterproof breathable membrane 3. Figure 5 As shown, a vent is provided between the cover 2 and the annular groove 12, connecting the waterproof breathable membrane 3 to the outside world. This structure conceals the programming hole, allowing for reprogramming and updating of the instrument line program. Furthermore, the programming hole acts as a vent, connecting to the outside world through the waterproof breathable membrane 3 and the vent, balancing the air pressure inside the instrument and preventing overheating and increased air pressure from causing bulging of the instrument case, which could compromise the seal and cause water leakage.

[0033] The structure of cover 2 is as follows Figure 6 As shown, two plug-in parts 21 and two arc-shaped crimping protrusions 24 are arranged opposite to the bottom surface of the cover 2. The plug-in part 21 is an arc-shaped plate structure. The crimping protrusions 24 are located in the enclosed area of ​​the two plug-in parts 21. Two first ventilation gaps 29 are formed at the two ends of the two crimping protrusions 24. The plug-in part 21 is arranged near the edge of the cover 2. The plug-in part 21 and the edge of the cover 2 form an outer eaves 27. The bottom surface of the outer eaves 27 is an inverted conical surface structure. The inner and outer side surfaces of the plug-in part 21 are respectively provided with ribs 22 in the vertical direction. Two second ventilation gaps 26 are formed at the two ends facing each other of the two plug-in parts 21. Preferably, the second ventilation gap 26 and the first ventilation gap 29 are opposite. The two plug-in parts 21 are integrally formed with a shielding part 23 above the second ventilation gap 26. The shielding part 23 connects the two plug-in parts 23. The shielding part 23 is an arc plate structure, and its thickness is less than the thickness of the plug-in part 21. The inner side surface of the shielding part 23 and the inner side surface of the plug-in part 21 are located on the same circumferential surface, and the shielding part 23 is located in the circumferential surface corresponding to the outer side surface of the plug-in part 21, that is, the plug-in part 21 forms a recessed structure at the position of the shielding part 23.

[0034] The assembly structure of the cover 2 and the upper shell 1 is as follows Figure 7 、 Figure 8As shown, the plug-in part 21 is interference-fitted into the annular groove 12 by means of the ribs 22 provided inside and outside the plug-in part 21. A gap is left between the plug-in part 21 and the bottom of the annular groove 12, forming a first annular air duct 7. The crimping protrusion 24 presses and fixes the waterproof breathable membrane 3, forming a breathable space 4 between the cover 2 and the waterproof breathable membrane 3. A second air duct 5 is formed between each two adjacent ribs 22 on the inner side of the plug-in part 21, and a third air duct 6 is formed between each two adjacent ribs 22 on the outer side. The ventilation principle of this burner structure is as follows: Figure 9 As shown: the burning hole 11-the breathable space 4-the first ventilation gap 29-the second ventilation channel 5-the first ventilation channel 7-the third ventilation channel 6 are connected to form a ventilation channel connecting the internal space of the instrument with the outside world, balancing the internal air pressure of the instrument, and preventing the instrument from overheating during use and the increase of air pressure to damage the sealing problem of the instrument.

[0035] In the present invention, the annular groove 12 is provided at the bottom of the receiving groove, and a step surface 14 is formed between the receiving groove and the annular groove 12. The outer edge 27 of the cover 2 faces the step surface 14. To facilitate the removal and placement of the cover 2, two inclined grooves 15 communicating with the receiving groove are provided on the top surface of the upper shell 1 at positions corresponding to the two second ventilation notches 26. The inclined grooves 15 extend obliquely downward through the step surface 14 and then communicate with the annular groove 12. That is, the bottom of the inclined groove 15 is inclined downward, passes through the step surface 14, and then passes through the outer groove wall of the annular groove 12, so that the inclined groove 15 and the annular groove 12 are connected. When removing and placing the cover 2, the operation can be performed through the inclined groove 15. During the burning operation, the cover 2 and the waterproof breathable membrane 3 are removed, the burning hole 11 is exposed, and the burning needle is inserted into the burning seat interface through the burning hole 11 to perform the burning operation. After programming is complete, remove the programming needle, place the waterproof breathable membrane 3 over the programming hole 11, and then install the cover 2. After assembly, the shielding portion 23 faces the slanted groove 15 to shield the ventilation space 4, preventing external dust from entering the ventilation space 4 and contaminating the waterproof breathable membrane 3, thereby ensuring good ventilation performance of the waterproof breathable membrane 3. In addition to the vent structure described above, the connection between the programming hole 11-ventilation space 4-first ventilation gap 29-second ventilation channel 5-second ventilation gap 26-second ventilation channel 5-slanted groove 15 also forms a ventilation channel connected to the outside world, improving the ventilation function of this structure.

[0036] The utility model has good stability, high and low temperature resistance, simple and efficient production and use, and effectively solves the problem of late program burning.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hidden vent-type program burning port structure, comprising an upper shell (1) for encapsulating an instrument and a circuit board used in the instrument, characterized in that: The top surface of the upper shell (1) is provided with an annular groove (12) at a position corresponding to the burning seat on the circuit board, the inner and outer groove walls of the annular groove (12) respectively protrude from the bottom surface of the upper shell (1), and a square burning hole (11) is provided at the center of the enclosed area (16) of the annular groove (12) facing the interface of the burning seat, and the burning hole (11) is covered with a waterproof breathable membrane (3); The upper shell (1) is provided with a cover (2) corresponding to the waterproof breathable membrane (3); the cover (2) and the annular groove (12) are detachably connected and fixed; and an air duct is provided between the cover (2) and the annular groove (12) to connect the waterproof breathable membrane (3) with the outside world.

2. The hidden vent-type program burning port structure according to claim 1, characterized in that: Two arc-shaped pressing protrusions (24) are arranged opposite to the bottom surface of the cover (2), and the two pressing protrusions (24) are opposite to the end portions to form a first ventilation notch (29), and the two pressing protrusions (24) press and fix the waterproof breathable membrane (3); The bottom surface of the cover (2) is further provided with a plug-in portion (21), which is interference-fitted into the annular groove (12), and an air flow channel is provided between the plug-in portion (21) and the annular groove (12).

3. The hidden ventilation port structure for programming according to claim 2, characterized in that: The plug-in portion (21) is an annular plate structure, and its inner and outer sides are respectively provided with convex ribs (22) in a vertical direction. The convex ribs (22) and the annular groove (12) are interference fitted, and a distance is left between the bottom surface of the plug-in portion (21) and the bottom of the annular groove (12).

4. The hidden vent-type program burning port structure according to claim 2, characterized in that: The top surface of the upper shell (1) is provided with a receiving groove, the annular groove (12) is opened at the bottom of the receiving groove, a step surface (14) is formed between the receiving groove and the annular groove (12), and two inclined grooves (15) are symmetrically provided on the top surface of the upper shell (1), each of which is connected to the receiving groove, and the inclined grooves (15) pass through the step surface (14) obliquely downward and are connected to the annular groove (12); The cover (2) is embedded in the accommodating groove, and the edge of the cover (2) and the plug-in portion (21) form an outer edge (27), and the outer edge (27) faces the step surface (14).

5. The hidden vent-type program burning port structure according to claim 4, characterized in that: Two second ventilation notches (26) are provided at the bottom end of the plug-in portion (21), and the positions of the two second ventilation notches (26) correspond to the two inclined grooves (15).

6. The hidden vent-type program burning port structure according to claim 5, characterized in that: The position of the second ventilation gap (26) corresponds to the position of the first ventilation gap (29).

7. The hidden vent-type program burning port structure according to claim 5, characterized in that: The portion of the plug-in portion (21) above the second ventilation notch (26) is a shielding portion (23), the thickness of which is less than the thickness of the plug-in portion (21). The shielding portion (23) is located on the outer side of the plug-in portion (21) and sits within the circumferential surface, and the shielding portion (23) faces the inclined groove (15).

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