Heat insulation structure for engine wire harness

Abstract

The utility model discloses a heat insulation structure for an engine wire harness, which relates to the technical field of engine wire harness heat insulation and comprises a wire harness body, a rubber water pipe layer is arranged on the surface of the wire harness body, a glass fiber layer is fixedly mounted on the surface of the rubber water pipe layer, and an aluminum foil heat insulation layer is fixedly mounted on the surface of the glass fiber layer. External heat is greatly reduced under blocking of the aluminum foil heat insulation layer and the glass fiber layer, then the external heat passes through the rubber water pipe layer, the tail end of a rotating plate is pulled, the rotating plate rotates around the top end, a pull rod is driven to deflect at the side end of the rotating plate, and by moving the pull rod, the connecting pipe can rotate around the top end of the rotating plate. The top end of the pull rod is placed into the side end of the clamping block, and the tail end of the rotating plate is pressed. After the rotating plate is deflected, pulling force is applied to the pull rod, the pull rod and the clamping block extrude each other, the aluminum foil heat insulation layer is integrally tensioned and fixed to the surface of the wire harness body, and the whole aluminum foil heat insulation layer is in a hasp type, so that quick installation and butt joint are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine wire harness heat insulation, especially relates to a heat insulation structure for engine wire harness. BACKGROUND

[0002] With the rapid development of automobile and engine industry and the continuous expansion of engine application range, the requirement for engine safe operation is also higher and higher, and the engine wire harness is one of the most important components for normal operation of the engine.

[0003] It is necessary to avoid high temperature area or use corrugated pipe for protection, which is sufficient for wire harness heat insulation protection under normal circumstances, but in water-cooled engine, the temperature of exhaust pipe, supercharger, engine water outlet pipeline and pre-intercooling pipeline is high, and long-time contact with hot medium will cause wire harness damage, if hot medium leakage occurs, the wire and corrugated pipe will be quickly damaged, once the engine wire harness has a problem, the engine control system will be out of control or enter a fault state, and cannot operate normally. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the defects of the prior art, the utility model provides a heat insulation structure for engine wire harness, which solves the technical problem that long-time contact with hot medium will cause wire harness damage, if hot medium leakage occurs, the wire and corrugated pipe will be quickly damaged, once the engine wire harness has a problem, the engine control system will be out of control or enter a fault state, and cannot operate normally.

[0006] (II) technical scheme

[0007] In order to achieve the above purpose, the utility model is realized by the following technical scheme:

[0008] A heat insulation structure for engine wire harness, comprising a wire harness body, a rubber water pipe layer is arranged on the surface of the wire harness body, a glass fiber layer is fixedly installed on the surface of the rubber water pipe layer, an aluminum foil heat insulation layer is fixedly installed on the surface of the glass fiber layer, and a connecting pipe is fixedly installed on the side end of the rubber water pipe layer.

[0009] Preferably, the end of the connecting pipe is fixedly installed with a water inlet end, the side end of the rubber water pipe layer is provided with a temperature control alarm, the side end of the temperature control alarm is provided with a water outlet end, two clamping blocks are fixedly installed on the surface of the aluminum foil heat insulation layer, two rotating plates are fixedly installed on the surface of the aluminum foil heat insulation layer, the same pull rod is rotatably installed on the two side ends of the rotating plate, and the top end of the pull rod is engaged with the side end of the clamping block.

[0010] (III) beneficial effects

[0011] 1、External heat is greatly reduced under the barrier of aluminum foil heat insulation layer and glass fiber layer, and then passes through the rubber water pipe layer, the rubber water pipe layer is corrosion-resistant and high-temperature-resistant, and has circulating cooling liquid inside, part of the heat is conducted to the cooling liquid through the rubber water pipe layer, at the same time, when the temperature of the water outlet reaches the threshold of the alarm, the temperature control alarm is triggered, and the display is directly displayed on the instrument in the vehicle interior, reminding the operator to overhaul, the corresponding heat insulation wire harness section exists abnormal condition, and timely replacement is carried out, and safety is increased.

[0012] 2、By pulling the end of the rotating plate, the rotating plate is rotated around the top end, the pull rod is deflected at the side end of the rotating plate, the top end of the pull rod is put into the side end of the clamping block by moving the pull rod, and the end of the rotating plate is pressed. After the rotating plate is deflected, the pull rod is pulled, the pull rod and the clamping block are extruded, the aluminum foil heat insulation layer is tensioned as a whole, and is fixed on the surface of the wire harness body, and the whole adopts a buckle type, so that quick installation and connection are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0013] The above description is only a summary of the technical scheme of the utility model, in order that the technical means of the utility model can be more clearly understood, and the content of the specification can be implemented, the following preferred embodiments of the utility model are described in detail in cooperation with the drawings.

[0014] Figure 1 It is the structure diagram of the wire harness body of the utility model;

[0015] Figure 2 It is the structure diagram of the rotating plate of the utility model;

[0016] Figure 3 It is the structure diagram of the aluminum foil heat insulation layer of the utility model;

[0017] Figure 4 It is the structure diagram of the rubber water pipe layer of the utility model.

[0018] Legend: 11, aluminum foil heat insulation layer; 12, glass fiber layer; 13, rubber water pipe layer; 14, water inlet end; 15, connecting pipe; 16, temperature control alarm; 17, water outlet end; 18, rotating plate; 19, pull rod; 21, clamping block; 22, wire harness body. DETAILED DESCRIPTION

[0019] The application embodiment provides an engine wire harness heat insulation structure, effectively solves the problem that long-time contact with a hot medium can cause wire harness damage, if the hot medium leaks, the wire and the corrugated pipe can be quickly damaged, once the engine wire harness has a problem, the engine control system can be out of control or enter a fault state, and the engine cannot run normally, external heat is greatly reduced under the blocking of the aluminum foil heat insulation layer and the glass fiber layer, then passes through the rubber water pipe layer, the rubber water pipe layer is corrosion-resistant and high and low temperature-resistant, has circulating coolant inside, part of the heat is conducted to the coolant inside through the rubber water pipe layer, when the temperature of the water outlet reaches the alarm threshold, the temperature control alarm is triggered, and the temperature control alarm is directly displayed on the instrument in the vehicle interior, reminding the operator to overhaul, the corresponding heat insulation wire harness section has an abnormal condition, and timely replacement is performed, and safety is increased.

[0020] Embodiment

[0021] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the technical scheme in the application embodiment effectively solves the technical problem that long-time contact with a hot medium can cause wire harness damage, if the hot medium leaks, the wire and the corrugated pipe can be quickly damaged, once the engine wire harness has a problem, the engine control system can be out of control or enter a fault state, and the engine cannot run normally, and the overall idea is as follows:

[0022] In view of the problems in the prior art, the utility model provides a kind of heat insulation structure for engine wire harness, including wire harness body 22, the surface of wire harness body 22 is provided with rubber water pipe layer 13, the surface of rubber water pipe layer 13 is fixedly installed with glass fiber layer 12, the surface of glass fiber layer 12 is fixedly installed with aluminum foil heat insulation layer 11, the side end of rubber water pipe layer 13 is fixedly installed with connecting pipe 15, external heat is greatly reduced under the blocking of aluminum foil heat insulation layer 11 and glass fiber layer 12, then passes through rubber water pipe layer 13, rubber water pipe layer 13 is corrosion-resistant and high and low temperature-resistant, with circulating coolant inside, coolant enters the inside of rubber water pipe layer 13 by water inlet end 14, connecting pipe 15 is connected to water inlet end 14 and water outlet end 17 respectively and is installed on the two sides of rubber water pipe layer 13, but temperature control alarm 16 is also installed in the front end of water outlet end 17, temperature control alarm 16 detects flowing coolant.

[0023] The end of the connecting pipe 15 is fixedly installed with the water inlet end 14, the side end of the rubber water pipe layer 13 is provided with the temperature control alarm 16, the side end of the temperature control alarm 16 is provided with the water outlet end 17, the surface of the aluminum foil heat insulation layer 11 is fixedly installed with two clamping blocks 21, the surface of the aluminum foil heat insulation layer 11 is fixedly installed with two rotating plates 18, the same pull rod 19 is rotatably installed at the two side ends of the rotating plate 18, the torsion spring is installed in the rotating plate 18, the end of the rotating plate 18 is pulled to rotate around the top end, the pull rod 19 is deflected at the side end of the rotating plate 18, the top end of the pull rod 19 is put into the side end of the clamping block 21 by moving the pull rod 19, and the end of the rotating plate 18 is pressed. After the rotating plate 18 is deflected, the pull rod 19 is pulled, the pull rod 19 and the clamping block 21 are extruded, the aluminum foil heat insulation layer 11 is tensioned as a whole, and the top end of the pull rod 19 is engaged with the side end of the clamping block 21.

[0024] Working principle:

[0025] Firstly, the outermost layer of the mechanism is the aluminum foil heat insulation layer 11, the glass fiber layer 12 is installed in the aluminum foil heat insulation layer 11, the rubber water pipe layer 13 is installed in the glass fiber layer 12, the aluminum foil heat insulation layer 11, the glass fiber layer 12 and the rubber water pipe layer 13 are designed in layers, the rotating plate 18 and the clamping block 21 are installed on the surface of the aluminum foil heat insulation layer 11, the pull rod 19 is rotatably installed at the two side ends of the rotating plate 18, the torsion spring is installed in the rotating plate 18, the end of the rotating plate 18 is pulled to rotate around the top end, the pull rod 19 is deflected at the side end of the rotating plate 18, the top end of the pull rod 19 is put into the side end of the clamping block 21 by moving the pull rod 19, and the end of the rotating plate 18 is pressed. After the rotating plate 18 is deflected, the pull rod 19 is pulled, the pull rod 19 and the clamping block 21 are extruded, the aluminum foil heat insulation layer 11 is tensioned as a whole, and the top end of the pull rod 19 is engaged with the side end of the clamping block 21.

[0026] Second step, external heat is greatly reduced under the barrier of aluminum foil heat insulation layer 11, glass fiber layer 12, then passes through rubber water pipe layer 13, rubber water pipe layer 13 adopts corrosion resistance, high and low temperature resistance, has circulating coolant inside, coolant passes through water inlet end 14 and enters the inside of rubber water pipe layer 13, is equipped with connecting pipe 15 on the both sides of rubber water pipe layer 13 respectively connecting water inlet end 14 and water outlet end 17, but still is equipped with temperature control alarm 16 at the front end of water outlet end 17, temperature control alarm 16 detects flowing coolant, part of heat is conducted to coolant inside through rubber water pipe layer 13, simultaneously when water outlet end 17 temperature reaches alarm threshold, triggers temperature control alarm 16, temperature control alarm 16 is connected with cab display terminal, after alarm, operator can find through sound and light signal, directly displays on the instrument in the car interior, reminds operator to overhaul, corresponding heat insulation wire harness section exists abnormal condition, replaces in time, increases safety.

[0027] Finally, it should be noted that: Obviously, the above examples are merely for the purpose of clearly illustrating the utility model, and not limited to the implementation. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and impossible to enumerate all the implementation. The obvious changes or variations derived therefrom are still within the scope of the utility model.

Claims

1. A heat shield structure for an engine harness, comprising a harness body (22), characterized by, The surface of the wire harness body (22) is provided with a rubber water pipe layer (13), the surface of the rubber water pipe layer (13) is fixedly installed with a glass fiber layer (12), the surface of the glass fiber layer (12) is fixedly installed with an aluminum foil heat insulation layer (11), the side end of the rubber water pipe layer (13) is fixedly installed with a connecting pipe (15), the end of the connecting pipe (15) is fixedly installed with a water inlet end (14), the side end of the rubber water pipe layer (13) is provided with a temperature control alarm (16), the side end of the temperature control alarm (16) is provided with a water outlet end (17), and the temperature control alarm (16) and the water outlet end (17) are connected in series through the connecting pipe (15).

2. The heat shield structure for an engine wire harness according to claim 1, characterized by The surface of the aluminum foil heat insulation layer (11) is fixedly installed with two clamping blocks (21).

3. The heat shield structure for an engine wire harness according to claim 1, wherein The surface of the aluminum foil heat insulation layer (11) is fixedly installed with two rotating plates (18). The inside of the rotating plate (18) is installed with a torsion spring, and the rotating plate (18) rotates around the top end.

4. The heat shield structure for an engine wire harness according to claim 3, wherein The same pull rod (19) is rotatably installed at the two side ends of the rotating plate (18).

5. The heat shield structure for an engine wire harness according to claim 4, wherein The top end of the pull rod (19) is matched with the side end of the clamping block (21).

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