Tail sealing structure of instrument wire harness

Abstract

The utility model relates to the technical field of wire harness installation, in particular to an instrument wire harness tail sealing structure, which comprises a wire harness PVC (polyvinyl chloride) sleeve, a bottom shell and a silica gel plug, a first through hole is formed in the middle of the bottom shell, a second through hole is formed in the middle of the silica gel plug, the silica gel plug is of an I-shaped structure and is connected to the first through hole in a clamped mode, and the wire harness penetrates through the second through hole to form an annular gluing groove; after the instrument is inverted, the annular gluing groove faces upwards, and glue is poured into the annular gluing groove so as to achieve the further sealing effect. And the diameter of the second through hole is matched with the diameter of the wire harness PVC sleeve. According to the utility model, the silica gel plug is installed on the bottom shell, the wire harness passes through the silica gel plug, and on one hand, the silica gel plug fills the gap between the bottom shell and the wire harness; and on the other hand, as the bottom of the gluing groove, the glue is prevented from overflowing into the instrument, and the glue is injected into the gluing groove to fill any tiny gap between the structure, so that the waterproof grade of the sealing structure is improved, and the maintenance cost caused by poor sealing is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness installation, in particular to a sealing structure for the tail of an instrument wire harness. Background Art

[0002] In many instrument designs currently on the market, rubber waterproof plugs are usually used to process the instrument's wire outlets. The use of rubber waterproof plugs is widely adopted due to its low cost and simple construction.

[0003] However, the waterproof grade of rubber waterproof plugs is generally low. Although it can cope with a certain degree of water vapor invasion, when exposed to a continuous high humidity environment, the waterproof performance is far from meeting the requirements of higher standards.

[0004] In order to solve the above problems, an instrument wiring harness tail sealing structure is designed.

[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The utility model provides a sealing structure for the tail of an instrument wiring harness, thereby effectively solving the problems in the background technology.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an instrument wiring harness tail sealing structure, including: a wiring harness PVC sleeve, a bottom shell and a silicone plug;

[0008] A first through hole is provided in the middle of the bottom shell, a second through hole is provided in the middle of the silicone plug, the silicone plug is arranged in an I-shaped structure and is clamped on the first through hole, and a ring-shaped gluing groove is formed after the wiring harness passes through the second through hole;

[0009] Wherein, after the instrument is inverted, the annular gluing groove faces upwards and glue is poured inwards to achieve a further sealing effect;

[0010] The diameter of the second through hole matches the diameter of the wiring harness PVC sleeve.

[0011] Furthermore, a circle of protrusions is provided on the surface of the first through hole, and a circle of grooves is provided on the outer surface of the silicone plug;

[0012] The size of the projection matches the span of the groove.

[0013] Furthermore, a circuit board is provided below the bottom shell, and one end of the instrument wiring harness is fixedly connected to the circuit board.

[0014] Furthermore, the circuit board is also provided with a processor, a plurality of welding holes and a plurality of electronic components for realizing data processing and transmission functions.

[0015] Furthermore, the injection height of the glue is lower than the top of the bottom shell.

[0016] Furthermore, the wiring harness PVC casing is made of a high-temperature-resistant and corrosion-resistant polymer material.

[0017] Furthermore, the glue material is a single-component dealcoholized organic silicon adhesive sealant.

[0018] Furthermore, the bottom shell is made of PC material.

[0019] The beneficial effects of the present invention are as follows: the silicone plug is installed on the bottom shell, and the wiring harness passes through the silicone plug. On the one hand, the silicone plug fills the gap between the bottom shell and the wiring harness; on the other hand, it serves as the bottom of the gluing groove to prevent glue from overflowing into the inside of the instrument. Glue is injected into the gluing groove to fill any tiny gaps between the structures, which not only improves the waterproof level of the sealing structure, but also reduces the maintenance cost caused by poor sealing. Silicone itself has excellent waterproof and temperature resistance properties, and provides stronger waterproof and dustproof protection than traditional rubber materials. It is especially suitable for use in environments with continuous high humidity. It not only improves the overall waterproof level of the sealing structure, but also extends the service life of the instrument and reduces the maintenance cost caused by poor sealing, ensuring the reliability and stability of the instrument under various environmental conditions and meeting higher standards of industrial needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic diagram of the sealing structure at the tail end of the instrument harness;

[0022] Figure 2 for Figure 1 Section view along AA;

[0023] Figure 3 Schematic diagram of the bottom shell structure;

[0024] Figure 4 Schematic diagram of the circuit board structure;

[0025] Figure numerals: 1. PVC sleeve for wiring harness; 2. bottom shell; 21. first through hole; 211. protrusion; 3. silicone plug; 31. second through hole; 311. groove; 4. instrument wiring harness; 5. glue; 6. circuit board; 61. processor; 62. welding hole; 63. electronic components. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; they may refer to mechanical or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] like Figures 1 to 4 As shown, a sealing structure for the tail end of an instrument harness includes: a harness PVC sleeve, a bottom shell and a silicone plug;

[0030] A first through hole is provided in the middle of the bottom shell, and a second through hole is provided in the middle of the silicone plug. The silicone plug is arranged in an I-shaped structure and is clamped on the first through hole. After the wiring harness passes through the second through hole, an annular gluing groove is formed;

[0031] When the instrument is inverted, the annular gluing groove faces upwards and glue is poured inwards to achieve a further sealing effect;

[0032] The diameter of the second through hole matches the diameter of the wiring harness PVC sleeve.

[0033] The silicone plug is installed on the bottom shell, and the wiring harness passes through the silicone plug. On the one hand, the silicone plug fills the gap between the bottom shell and the wiring harness; on the other hand, it serves as the bottom of the gluing groove to prevent glue from overflowing into the inside of the instrument. Glue is injected into the gluing groove to fill any tiny gaps between the structures. This not only improves the waterproof level of the sealing structure, but also reduces the maintenance cost caused by poor sealing. Silicone itself has excellent waterproof and temperature resistance properties, and provides stronger waterproof and dustproof protection than traditional rubber materials. It is especially suitable for environments with continuous high humidity. It not only improves the overall waterproof level of the sealing structure, but also extends the service life of the instrument and reduces the maintenance cost caused by poor sealing, ensuring the reliability and stability of the instrument under various environmental conditions and meeting higher standards of industrial needs.

[0034] In this embodiment, a circle of protrusions is provided on the surface of the first through hole, and a circle of grooves is provided on the outer surface of the silicone plug;

[0035] The size of the projection matches the span of the groove.

[0036] A circle of protrusions is designed on the first through-hole surface of the bottom shell, and a circle of matching grooves is provided on the outer surface of the silicone plug. The protrusions are precisely embedded in the grooves, providing an effective physical locking mechanism, which enhances the stability and sealing performance of the entire sealing system, ensuring that the sealing structure is not easy to loosen or fall off during long-term use or under external pressure and vibration. The waterproof and dustproof performance is significantly improved because the close combination of the protrusions and the grooves forms a continuous barrier to prevent moisture and particles from penetrating through the interface.

[0037] In this embodiment, a circuit board is provided below the bottom shell, and one end of the instrument wiring harness is fixedly connected to the circuit board.

[0038] By fixing the circuit board directly under the bottom shell, not only the stability and reliability of the electrical connection between the circuit board and the instrument wiring harness are ensured, but also the entire assembly process is simplified, the use of space is optimized, and the overall structure is more compact, making it easier to integrate into various devices.

[0039] In this embodiment, a processor, a plurality of welding holes and a plurality of electronic components are also provided on the circuit board for realizing data processing and transmission functions.

[0040] By arranging a processor, several welding holes and several electronic components on the circuit board, data processing and transmission functions are realized, ensuring that the circuit board can efficiently process and transmit data, thereby improving the performance and reliability of the overall equipment; using welding holes to fix the wiring harness on the circuit board ensures the stability of the wiring harness and the integrity of the circuit, further enhancing durability; integrating the processor, several welding holes and several electronic components on the circuit board enables the circuit board to support complex data processing operations and multi-functional electronic tasks to meet different application requirements, which not only optimizes the functionality of the circuit board, but also improves the response speed and processing efficiency through precise data processing and effective transmission.

[0041] In this embodiment, the injection height of the glue is lower than the top of the bottom shell.

[0042] By keeping the glue injection height lower than the top of the bottom shell, the glue can be effectively prevented from overflowing or dripping on the outside of the bottom shell, thereby maintaining a neat and professional appearance of the sealing structure, and ensuring that the glue completely fills the gap between the wiring harness PVC sleeve and the first through-hole of the bottom shell, achieving a more complete seal without wasting glue due to excessive use; the glue injection method helps to maintain the pressure and position of the glue stable, because a natural barrier layer is formed on the surface of the glue, preventing air from entering and excessive evaporation of the glue, which not only improves the reliability of the sealing effect, but also helps to improve the overall strength of the sealing structure, because the fully cured glue can provide additional structural support for the connection between the bottom shell and the wiring harness PVC sleeve.

[0043] In this embodiment, the wiring harness PVC casing is made of a high-temperature-resistant and corrosion-resistant polymer material.

[0044] The high-temperature resistance of polymer materials enables the PVC conduit for wiring harnesses to maintain stable performance under various temperature conditions and will not deform or be damaged due to temperature changes, thereby ensuring the safety and reliability of the instrument wiring harness in extreme environments; the corrosion resistance of polymers also enables the PVC conduit for wiring harnesses to resist erosion by various chemicals; high-temperature and corrosion-resistant polymer materials usually have good mechanical strength and flexibility, which not only increases the service life of the PVC conduit for wiring harnesses, but also reduces the frequency of maintenance and replacement, further reducing the overall operating cost.

[0045] In this embodiment, the glue material is a single-component dealcoholized organic silicon adhesive sealant.

[0046] A single-component dealcoholized silicone adhesive sealant is used as the glue material. Since the single-component dealcoholized silicone adhesive sealant has excellent resistance to high and low temperatures, it can maintain a stable bonding effect under various temperature environments and is not affected by temperature fluctuations. In addition, its high tensile strength enhances the firmness and durability of the bonding structure, thereby improving the reliability and safety of the sealing structure.

[0047] In this embodiment, the bottom shell is made of PC.

[0048] The bottom shell is made of PC material. Due to its high transparency and excellent mechanical properties, PC material enhances the visual beauty and structural strength of the sealed structure. PC material also has good heat resistance and impact resistance, allowing the bottom shell to maintain stability in changing environments, thereby extending its service life.

[0049] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An instrument harness tail sealing structure, characterized in that: include: Wiring harness PVC sleeve, bottom shell and silicone plug; A first through hole is provided in the middle of the bottom shell, a second through hole is provided in the middle of the silicone plug, the silicone plug is arranged in an I-shaped structure and is clamped on the first through hole, and a ring-shaped gluing groove is formed after the wiring harness passes through the second through hole; Wherein, after the instrument is inverted, the annular gluing groove faces upwards and glue is poured inwards to achieve a further sealing effect; The diameter of the second through hole matches the diameter of the wiring harness PVC sleeve.

2. The instrument harness tail sealing structure according to claim 1, characterized in that: A circle of protrusions is provided on the surface of the first through hole, and a circle of grooves is provided on the outer surface of the silicone plug; The size of the projection matches the span of the groove.

3. The instrument harness tail sealing structure according to claim 1, characterized in that: A circuit board is provided below the bottom shell, and one end of the instrument wiring harness is fixedly connected to the circuit board.

4. The instrument harness tail sealing structure according to claim 3, characterized in that: The circuit board is also provided with a processor, a number of welding holes and a number of electronic components for realizing data processing and transmission functions.

5. The instrument harness tail sealing structure according to claim 1, characterized in that: The injection height of the glue is lower than the top of the bottom shell.

6. The instrument harness tail sealing structure according to claim 1, characterized in that: The wire harness PVC casing is made of a high-temperature-resistant and corrosion-resistant polymer material.

7. The instrument harness tail sealing structure according to claim 1, characterized in that: The glue material is a single-component dealcoholized organic silicon adhesive sealant.

8. The instrument harness tail sealing structure according to claim 1, characterized in that: The bottom shell is made of PC material.

Images