Transmission line protection mechanism of pressure sensor for automobile

Abstract

The utility model belongs to the technical field of transmission line connection protection, and particularly relates to a transmission line protection mechanism of a pressure sensor for an automobile, which adopts the following scheme that the transmission line protection mechanism comprises a protection connection assembly consisting of a heat-shrinkable sleeve, a soldering tin ring and a waterproof hot melt adhesive ring, the soldering tin ring is sleeved in the middle of the inner side of the heat-shrinkable sleeve, and the waterproof hot melt adhesive ring is sleeved in the soldering tin ring; the waterproof hot melt adhesive rings are fixed to the two sides of the inner wall of the heat-shrinkable sleeve and are symmetrically distributed with the soldering tin ring as the center, a reinforcing assembly is arranged on the portion, located on the outer side of the soldering tin ring, of the inner side of the heat-shrinkable sleeve, and the reinforcing assembly is used for conducting pressing operation on the transmission line and the plug wire end. According to the utility model, through the arrangement of the reinforcing assembly, pressing operation of the transmission line and the plug wire end can be realized, and when external pulling force is applied, the pulling force acts on the pressing part and cannot be transmitted to a soldering tin ring melting fixing position, so that the transmission line and the plug wire end are kept in a stable connection state; and the signal transmission stability of the automobile pressure sensor is effectively ensured.

Description

Technical field:

[0001] The utility model relates to the technical field of transmission line connection protection, in particular to a transmission line protection mechanism of a pressure sensor for an automobile. Background technology:

[0002] The main function of the automotive pressure sensor is to measure the pressure in the vehicle's hydraulic system and monitor and adjust the vehicle's performance and safety by outputting electrical signals. Specifically, it can check key parameters such as engine combustion efficiency, fuel consumption, valve advance angle and ignition timing. It can also monitor important information such as whether the steering oil circuit pressure is normal and whether the braking system is working stably. When these indicators are abnormal, the sensor will issue an alarm or automatically perform adjustment measures to ensure the safety and comfort of the vehicle during driving.

[0003] During the use of the car, the car pressure sensor will inevitably have malfunction problems. During maintenance, sometimes it is necessary to replace the car pressure sensor and the plug connected to the car pressure sensor transmission line at the same time. At this time, the plug and the transmission line are generally cut off, and then the wire on the corresponding plug of the new car pressure sensor is connected to the transmission line;

[0004] In order to ensure a stable connection between the transmission line and the wire on the plug, a solder ring heat shrink tube is now available on the market to achieve rapid fixation and protection of the transmission line and the wire. The solder ring heat shrink tube is a heat shrink tube with a solder ring arranged inside it. After the solder ring heat shrink tube is sleeved on the outside of the connection between the wire and the transmission line, the solder ring is melted by heating with a hot air gun to strengthen the connection between the wire and the transmission line end, and the heat shrink tube shrinks synchronously to achieve sealing protection of the connection.

[0005] However, in actual operation, the wire and the transmission line end are prone to separation in the middle of the solder ring, resulting in a weak connection between the wire and the transmission line end when the subsequent solder ring melts, and is easily disconnected by external pulling force, which is not conducive to the stable use of the automotive pressure sensor. Utility model content:

[0006] The purpose of the utility model is to provide a transmission line protection mechanism for a pressure sensor for an automobile in view of the defects of the prior art, so as to solve the problems in the above background.

[0007] A transmission line protection mechanism for a pressure sensor for an automobile, comprising a protection connection assembly consisting of a heat shrinkable sleeve, a solder ring, and a waterproof hot melt adhesive ring, wherein the solder ring is sleeved on the middle of the inner side of the heat shrinkable sleeve, the waterproof hot melt adhesive ring is fixed on both sides of the inner wall of the heat shrinkable sleeve and is symmetrically distributed with the solder ring as the center, and a reinforcement assembly is arranged on the inner side of the heat shrinkable sleeve and located outside the solder ring, and the reinforcement assembly is used to perform a compression operation on the transmission line and the plug wire end;

[0008] The reinforcement component comprises a metal straight piece and a pressing part. The metal straight piece is distributed between the inner side of the heat shrinkable sleeve and the bottom of the solder ring. The pressing part is symmetrically fixed at two ends of the metal straight piece.

[0009] By adopting the above technical solution, the transmission line and the plug wire end can be pressed together by the reinforcement component, thereby further improving the connection stability between the transmission line and the plug wire.

[0010] A plurality of arc-shaped straight notches evenly distributed are formed at the position where the metal straight sheet contacts the solder ring.

[0011] By adopting the above technical solution, the hot air gun can fully heat the solder ring through the straight notch.

[0012] The two pressing parts are respectively composed of a plurality of vortex sheets, and there is a gap between the pressing parts and the solder ring.

[0013] By adopting the above technical solution, a plurality of vortex sheets can be better deformed by force, and the deformation of a plurality of vortex sheets presses the transmission line and the plug wire, so that the overall connection force is stronger.

[0014] A protective plastic gasket is bonded and fixed to the outer side of the heat shrinkable sleeve at a position aligned with the pressing portion, and two protective plastic gaskets are symmetrically arranged up and down with the pressing portion as the center.

[0015] By adopting the above technical solution, the external tool squeezes the protective plastic gasket, and the protective plastic gasket squeezes the pressing part, thereby preventing the external tool from contacting the heat shrinkable sleeve.

[0016] The length of the protective plastic gasket is greater than the horizontal length of the pressing portion, and the width of the protective plastic gasket is less than the outer wall diameter of the heat shrinkable sleeve.

[0017] By adopting the above technical solution, the comprehensive squeezing operation of the pressing part by the protective plastic gasket can be achieved.

[0018] The solder ring and the metal straight piece are integrally fitted with the inner wall of the heat shrinkable sleeve in an interference fit.

[0019] By adopting the above technical solution, the solder ring and the metal straight piece can be fixed inside the heat shrinkable sleeve as a whole.

[0020] The beneficial effects of the transmission line protection mechanism of the automobile pressure sensor of the utility model are:

[0021] By setting up a reinforcement component, the transmission line and the plug wire end can be compressed. When subjected to external pulling force, the pulling force will act on the compression part and will not be transmitted to the solder ring to melt and fix the position. In this way, the transmission line and the plug wire end can maintain a stable connection state, effectively ensuring the stability of the automotive pressure sensor signal transmission. Description of the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the transmission line protection mechanism of the automobile pressure sensor proposed by the utility model;

[0023] Figure 2 This is a structural cross-sectional view of the heat shrink sleeve of the transmission line protection mechanism of the automobile pressure sensor proposed by the utility model;

[0024] Figure 3 The utility model is a schematic diagram of the disassembly of the reinforcement component and the heat shrink tubing of the transmission line protection mechanism of the automobile pressure sensor.

[0025] In the figure: 1. Protective connection component; 101. Heat shrink tubing; 102. Solder ring; 103. Waterproof hot melt adhesive ring; 2. Reinforcement component; 201. Metal straight sheet; 202. Pressing part; 203. Straight notch; 3. Protective plastic gasket. Specific implementation method:

[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0027] Reference Figure 1-3 A transmission line protection mechanism for a pressure sensor for an automobile includes a protection connection component 1 composed of a heat shrinkable tube 101, a solder ring 102, and a waterproof hot melt adhesive ring 103. The solder ring 102 is sleeved on the middle of the inner side of the heat shrinkable tube 101. The waterproof hot melt adhesive ring 103 is fixed on both sides of the inner wall of the heat shrinkable tube 101 and is symmetrically distributed with the solder ring 102 as the center. A reinforcement component 2 is arranged on the inner side of the heat shrinkable tube 101 and on the outer side of the solder ring 102. The reinforcement component 2 is used to press the transmission line and the plug wire end;

[0028] The reinforcement component 2 includes a metal straight sheet 201 and a pressing portion 202;

[0029] The metal straight piece 201 is distributed between the inner side of the heat shrink tube 101 and the bottom of the solder ring 102, and the pressing part 202 is symmetrically fixed at both ends of the metal straight piece 201;

[0030] When the transmission line and the plug wire ends are inserted into the heat shrink sleeve 101, they need to pass through the two clamping parts 202 respectively to be inserted into the inside of the solder ring 102. By clamping the two clamping parts 202 to make them deform and shrink, the compression operation of the transmission line and the plug wire is achieved;

[0031] The solder ring 102 and the metal straight piece 201 are integrally formed in an interference fit with the inner wall of the heat shrinkable tube 101 .

[0032] In this embodiment, when the automobile pressure sensor is replaced as a whole, the corresponding plug of the new automobile pressure sensor needs to be connected to the transmission line of the pressure sensor. At this time, the connection between the transmission line and the plug wire can be reinforced and protected by the protective connection component 1. The operation steps are as follows:

[0033] Insert the ends of the transmission line and the plug wire from both ends of the heat shrink tubing 101, and the ends of the transmission line and the plug wire will pass through the two clamping parts 202, and finally pass through both ends of the solder ring 102;

[0034] Then, the pressing part 202 is squeezed by an external tool (for example, pliers) to make the pressing part 202 deform and shrink, and the pressing part 202 can form a squeezing and clamping effect on the transmission line and the conductor;

[0035] Finally, the protective connection assembly 1 is heated as a whole by a hot air gun. At this time, the solder ring 102 is heated and melted to wrap and connect the ends of the transmission line and the plug wire, so as to realize the electrical connection and conduction between the transmission line and the plug wire. At the same time, the heat shrinkable sleeve 101 is heated and shrunk to completely fit the outside of the transmission line and the plug wire, and the waterproof hot glue ring 103 is heated and melted synchronously to fill the gap between the two ends of the heat shrinkable sleeve 101 and the outer wall of the transmission line and the plug wire, so as to realize the bonding and fixing of the two ends of the heat shrinkable sleeve 101 to the transmission line and the plug wire.

[0036] The above-mentioned multiple parts can realize the stable connection between the transmission line and the plug wire, and when subjected to external tension, the tension will act on the clamping part 202, and will not be transmitted to the melting and fixing position of the solder ring 102, so that the transmission line and the plug wire end are kept in a stable connection state, effectively ensuring the stability of the signal transmission of the automobile pressure sensor;

[0037] It should be further explained that the heat shrink tubing 101 is a transparent structure, which makes it easy to judge the connection status of the transmission line and the plug wire end.

[0038] A plurality of arc-shaped straight notches 203 evenly distributed are formed at the position where the metal straight sheet 201 contacts the solder ring 102 .

[0039] In this embodiment, the straight notch 203 is provided so that when the hot air gun is heated, the solder ring 102 can be heated and melted more comprehensively, thereby ensuring that the solder ring 102 is fully melted.

[0040] Please refer to Figures 2 to 3 The two clamping parts 202 are respectively composed of a plurality of vortex sheets, and there is a gap between the clamping parts 202 and the solder ring 102 .

[0041] In this embodiment: the structure of a plurality of vortex sheets makes it easier for the pressing part 202 to be pressed and deformed. At the same time, when the structure of the vortex sheet is deformed, the end of the vortex sheet is rolled inward, and the heat shrinkable tube 101 will not be punctured, thereby ensuring a good sealing effect of the heat shrinkable tube 101;

[0042] In addition, due to the structure of a gap between the pressing portion 202 and the solder ring 102 , when the pressing portion 202 is pressed, no contact or compression is generated on the solder ring 102 .

[0043] A protective plastic gasket 3 is bonded and fixed to the outer side of the heat shrinkable sleeve 101 at a position aligned with the pressing portion 202. Two protective plastic gaskets 3 are symmetrically arranged up and down with the pressing portion 202 as the center.

[0044] The length of the protective plastic gasket 3 is greater than the horizontal length of the pressing portion 202 , and the width of the protective plastic gasket 3 is less than the outer wall diameter of the heat shrinkable sleeve 101 .

[0045] In this embodiment: when the pressing part 202 is squeezed by an external tool, the external tool contacts the protective plastic gasket 3, and the pressing part 202 is pressed by the protective plastic gasket 3, so that the external tool is prevented from contacting the heat shrinkable tube 101 to damage the heat shrinkable tube 101, thereby ensuring the integrity of the heat shrinkable tube 101;

[0046] The length of the protective plastic gasket 3 is greater than the horizontal length of the pressing portion 202, thereby effectively ensuring full squeezing of the pressing portion 202;

[0047] Due to the structure that the width of the protective plastic gasket 3 is smaller than the outer wall diameter of the heat shrinkable tube 101, there is a space gap between the two protective plastic gaskets 3, which provides space for the protective plastic gaskets 3 to be close to each other.

[0048] 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.

Claims

1. A transmission line protection mechanism for a pressure sensor for an automobile, comprising a protection connection assembly (1) consisting of a heat shrinkable tube (101), a solder ring (102), and a waterproof hot melt adhesive ring (103), wherein the solder ring (102) is sleeved on the middle part of the inner side of the heat shrinkable tube (101), and the waterproof hot melt adhesive ring (103) is fixed on both sides of the inner wall of the heat shrinkable tube (101) and is symmetrically distributed with the solder ring (102) as the center, characterized in that: A reinforcement component (2) is arranged on the inner side of the heat shrinkable sleeve (101) and on the outer side of the solder ring (102), and the reinforcement component (2) is used to perform a compression operation on the transmission line and the plug wire end; The reinforcement component (2) comprises a metal straight piece (201) and a pressing portion (202); the metal straight piece (201) is distributed between the inner side of the heat shrink tube (101) and the bottom of the solder ring (102); and the pressing portion (202) is symmetrically fixed to two ends of the metal straight piece (201).

2. The transmission line protection mechanism of the automotive pressure sensor according to claim 1, characterized in that: A plurality of arc-shaped evenly distributed straight notches (203) are formed at the position where the metal straight sheet (201) contacts the solder ring (102).

3. The transmission line protection mechanism of the automotive pressure sensor according to claim 2, characterized in that: The two pressing parts (202) are respectively composed of a plurality of vortex sheets, and there is a gap between the pressing parts (202) and the solder ring (102).

4. The transmission line protection mechanism of the automotive pressure sensor according to claim 3, characterized in that: A protective plastic gasket (3) is bonded and fixed to the outer side of the heat shrinkable sleeve (101) at a position aligned with the pressing portion (202), and two protective plastic gaskets (3) are symmetrically arranged up and down with the pressing portion (202) as the center.

5. The transmission line protection mechanism of the automotive pressure sensor according to claim 4, characterized in that: The length of the protective plastic gasket (3) is greater than the horizontal length of the pressing portion (202), and the width of the protective plastic gasket (3) is less than the outer wall diameter of the heat shrinkable sleeve (101).

6. The transmission line protection mechanism of the automotive pressure sensor according to claim 5, characterized in that: The solder ring (102) and the metal straight sheet (201) are integrally formed in an interference fit with the inner wall of the heat shrinkable sleeve (101).

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