Auxiliary measuring device for resistance of overheat detection element of wing fuselage

Abstract

The utility model relates to the technical field of resistance auxiliary measuring devices, in particular to a wing and fuselage overheating detection element resistance auxiliary measuring device which comprises a box body, and the rear end of the box body is fixedly connected with an aviation switching electric connector used for being connected with an electric plug behind a thermal detection control assembly M237. The front end is fixedly connected with a first measuring line connecting end, a second measuring line connecting end and a change-over switch; the aviation switching electric connector comprises a grounding terminal and a plurality of detection element channel connecting terminals; the grounding terminal is connected with a second measuring line connecting end through a wire, the detecting element channel connecting terminal is connected with a change-over switch through a wire, and the change-over switch is connected with a first measuring line connecting end through a wire. The change-over switch is used for connecting the first measuring line connecting end to different detection element channel connecting terminals; according to the utility model, the connection points of the measuring line do not need to be replaced frequently, the measuring efficiency is higher, and the pin of the electric plug behind the M237 is not damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to resistance auxiliary measuring device technical field, specifically is a wing fuselage overheating detection element resistance auxiliary measuring device. BACKGROUND

[0002] 22 wing fuselage overheating detection elements are distributed in 6 detection element channels, and the detection element channel includes a channel line and an overheating detection element connected to the channel line;The two ends of the channel line are the upstream end and the downstream end;When performing the resistance measurement of the Boeing 737NG aircraft wing fuselage overheating detection element, the overheating detection control assembly M237 needs to be removed after power off, and then the LCR table is used to measure the ground resistance of the detection element through the wing fuselage overheating detection element corresponding pin connected to the back of the overheating detection control assembly M237, so as to predict and determine whether the detection element is faulty;Because the position of the back of M237 is difficult to access, and the number of detection elements to be measured is large, especially when troubleshooting, the measurement time is longer;And two people need to cooperate to complete the line analysis, measurement, recording and lighting work, and the overall test efficiency is low, long time work, easy to cause the maintenance personnel fatigue work;And the narrow and poor lighting area is easy to cause the pin damage when connecting the LCR table and the back of M237, which has safety hazards. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the utility model is to provide a wing fuselage overheating detection element resistance auxiliary measuring device, which solves the problem of low measurement efficiency and easy damage of the pin of the back of M237 in the resistance measurement of the wing fuselage overheating detection element in the prior art.

[0004] In order to achieve the above purpose, the utility model provides a wing fuselage overheating detection element resistance auxiliary measuring device, which comprises a box body, the rear end of the box body is fixedly connected with an aviation adapter electrical connector for connecting with the back of the overheating detection control assembly M237, the front end is fixedly connected with a measurement line connection end one, a measurement line connection end two and a change-over switch;The aviation adapter electrical connector includes a grounding terminal and a plurality of detection element channel connection terminals;The grounding terminal is connected with the measurement line connection end two through a wire, the detection element channel connection terminal is connected with the change-over switch through a wire, and the change-over switch is connected with the measurement line connection end one through a wire;The change-over switch is used to connect the measurement line connection end one to different detection element channel connection terminals.

[0005] Further, the number of the change-over switches is two; the detection element channel comprises a channel line and an overheating detection element connected to the channel line; two ends of the channel line are an upstream end and a downstream end; the detection element channel connection terminal comprises a plurality of channel line upstream end connection terminals and a plurality of channel line downstream end connection terminals; and the two change-over switches are connected to the channel line upstream end connection terminals and the channel line downstream end connection terminals respectively.

[0006] Further, the front end of the box body is fixedly connected with a lighting lamp strip and a lamp strip brightness adjusting switch, the inside of the box body is provided with an aviation lithium battery, and the lighting lamp strip, the lamp strip brightness adjusting switch and the aviation lithium battery are connected through wires.

[0007] Further, the side of the box body is connected with a side door through a hinge, and the side door is provided with a heat dissipation hole and a side handle.

[0008] Further, the front side of the box body is fixedly connected with a handle and an auxiliary locking mechanism used for connecting with an airplane E1 electronic frame.

[0009] Further, the wires connected with the aviation switching electrical connector, the measurement line connection end one, the measurement line connection end two, the change-over switch, the lighting lamp strip, the lamp strip brightness adjusting switch and the aviation lithium battery are arranged in the inside of the box body.

[0010] The utility model discloses a measurement line connection end one, measurement line connection end two and change-over switch all are located in the front side of wing fuselage overheating detection element resistance auxiliary measuring device, are located in the spacious room convenient operation, do not need to operate in the narrow space, and have lighting lamp strip and carry out the illumination, and the illumination condition is better, further convenient operation, improve the work efficiency, reduce personnel fatigue.

[0011] The wing fuselage overheating detection element structure is relatively fragile, and frequent disassembly can cause damage, and the detection element is relatively high in price; the utility model discloses a measurement process as far as possible reduce the number of wing fuselage overheating detection element disconnects the isolation, reduces the element damage, reduces the cost.

[0012] The wing fuselage overheating detection element structure is relatively fragile, and frequent disassembly can cause damage, and the detection element is relatively high in price; the utility model discloses a measurement process as far as possible reduce the number of wing fuselage overheating detection element disconnects the isolation, reduces the element damage, reduces the cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings accompanying the specification of this application serve to provide further understanding of the present application, the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation on the present application.

[0014] Figure 1 It is a structural schematic view of the wing fuselage overheating detection element resistance auxiliary measurement device in the embodiment.

[0015] Figure 2 It is a structural schematic view of the aviation switching electrical connector and in the embodiment.

[0016] Figure 3 It is a structural schematic view of the detection element channel change-over switch wiring in the embodiment.

[0017] Figure 4 It is a structural schematic view of the C channel and wing fuselage overheating detection element resistance auxiliary measurement device connection in the embodiment.

[0018] In the figure: 1, box body; 101, hinge; 102, side door; 103, heat dissipation hole; 104, side handle; 2, aviation switching electrical connector; 3, measurement line connection end one; 4, measurement line connection end two; 5, change-over switch; 6, lamp strip brightness adjusting switch; 7, aviation lithium battery; 8, handle; 9, auxiliary locking mechanism; 10, illumination lamp strip; 11, wing fuselage overheating detection element; 1101, core wire; 1102, metal sleeve; 1103, resistance material; 12, channel line; 13, fuselage ground. DETAILED DESCRIPTION

[0019] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0020] As Figures 1 to 2 shown, according to the embodiment of the present application, a wing fuselage overheating detection element resistance auxiliary measurement device is provided, which comprises a box body 1, the rear end of the box body 1 is fixedly connected with an aviation switching electrical connector 2 used for connecting with a rear electrical plug of a heat detection control assembly M237, the front end is fixedly connected with a measurement line connection end one 3, a measurement line connection end two 4 and a change-over switch 5; the aviation switching electrical connector 2 comprises a grounding terminal and a plurality of detection element channel connection terminals; the measurement line connection end two 4 is connected with the grounding terminal through a wire, the detection element channel connection terminals are connected with the change-over switch 5 through wires, and the change-over switch 5 is connected with the measurement line connection end one 3 through a wire; the change-over switch 5 is used for connecting the measurement line connection end one 3 to different detection element channel connection terminals.

[0021] The front end of the box body 1 is fixedly connected with a lighting lamp strip 10 and a lamp strip brightness adjusting switch 6, the inside of the box body 1 is provided with an aviation lithium battery 7, and the lighting lamp strip 10, the lamp strip brightness adjusting switch 6 and the aviation lithium battery 7 are connected through wires.

[0022] The side of the box body 1 is connected with a side door 102 through a hinge 101, the side door 102 is provided with a heat dissipation hole 103 and a side handle 104.

[0023] The front side of the box body 1 is fixedly connected with a handle 8 and an auxiliary locking mechanism 9 for connecting with an electronic rack of the airplane E1; the auxiliary locking mechanism 9 is selected from aviation standard parts and matches the structure of the airplane, so that the auxiliary measuring device is ensured to be installed in place and not to be damaged.

[0024] The wires connected with the aviation adapter electrical connector 2, the measuring line connecting end one 3, the measuring line connecting end two 4, the conversion switch 5, the lighting lamp strip 10, the lamp strip brightness adjusting switch 6 and the aviation lithium battery 7 are arranged in the inside of the box body 1.

[0025] The number of the conversion switches 5 is two; the detection element channel includes a channel wire 12 and an overheat detection element 11 connected to the channel wire 12; the two ends of the channel wire 12 are an upstream end and a downstream end; the detection element channel connecting terminal includes a plurality of channel wire upstream end connecting terminals and a plurality of channel wire downstream end connecting terminals; the two conversion switches 5 are connected with the channel wire upstream end connecting terminals and the channel wire downstream end connecting terminals respectively.

[0026] When one conversion switch 5 controls the measuring line of the LCR meter to be communicated with the channel wire 12, the other conversion switch 5 is in the OFF position; the two conversion switches 5 should not control the measuring line of the LCR meter to be communicated with the channel wire 12 at the same time.

[0027] The wing body overheat detection element resistance auxiliary measuring device of the embodiment is used for measuring the wing body overheat detection element 11; as shown in Figure 3 and Figure 4As shown, 22 wing body overheating detection elements 11 are distributed in 6 detection element channels; the 6 detection element channels are A channel, B channel, C channel, D channel, E channel and F channel respectively; the wing body overheating detection element 11 comprises a core wire 1101, a metal sleeve 1102 sleeved outside the core wire 1101 and a resistance material 1103 arranged between the core wire 1101 and the metal sleeve 1102, and the metal sleeve 1102 is connected with the body ground 13; the two ends of the channel wire 12 in each channel are connected with the rear electric plug of the thermal detection control assembly M237, and the body ground 13 is also connected with the rear electric plug of the thermal detection control assembly M237; when the aviation adapter electric connector 2 is connected with the rear electric plug of the thermal detection control assembly M237, the detection element channel connection terminal is connected with the channel wire 12, and the grounding terminal is connected with the body ground 13; after the measurement wire of the LCR meter is connected with the measurement wire connection end one 3 and the measurement wire connection end two 4, the LCR meter can measure the wing body overheating detection element 11.

[0028] The rotary knob is arranged on the switch 5, and rotating the rotary knob can connect the measurement wire connection end one 3 to different detection element channel connection terminals, thereby connecting different detection element channels; thus, the resistance of the wing body overheating detection element 11 in the whole channel can be measured uniformly; when an abnormal resistance in a certain detection element channel is measured, the resistance of a certain wing body overheating detection element 11 or several wing body overheating detection elements 11 in the detection element channel is measured separately by means of disconnection and isolation, the range is continuously narrowed, and it is detected that which wing body overheating detection element 11 has an abnormal resistance until the abnormal wing body overheating detection element 11 is found.

[0029] The embodiment also provides a measurement method of the wing body overheating detection element resistance auxiliary measurement device.

[0030] S1, the thermal detection control assembly M237 is disassembled, the wing body overheating detection element resistance auxiliary measurement device is installed at the original position of the thermal detection control assembly M237, and the aviation adapter electric connector 2 is directly connected with the rear electric plug of the thermal detection control assembly M237;

[0031] S2, the measurement wire of the LCR meter is connected to the measurement wire connection end one 3 and the measurement wire connection end two 4;

[0032] S3, the switch 5 is dialed to measure different detection element channels, and the resistance of the wing body overheating detection element 11 in the whole channel is measured integrally to determine the abnormal detection element channel with an abnormal resistance.

[0033] S4, when there are multiple wing-body overheating detection elements 11 in the abnormal detection element channel, disconnect the channel line 12 to divide it into two channel segments, measure each channel segment as a whole to determine the abnormal channel segment in which the resistance is abnormal; for example, determine that the abnormal detection element channel is channel C, and the seven wing-body overheating detection elements 11 arranged in channel C are numbered M1912, M1910, M356, M371, M269, M1763, and M1764 in sequence; disconnect M356 and M371 to divide channel C into two channel segments; channel segment one includes M1912, M1910, and M356, and channel segment two includes M371, M269, M1763, and M1764; after measurement, determine that channel segment one is the abnormal channel segment;

[0034] S5, measure the parallel value of the resistance of one or more wing-body overheating detection elements 11 in the abnormal channel segment by disconnecting and isolating to finally determine which wing-body overheating detection element 11 has an abnormal resistance; for example, disconnect M1910 and M356 in channel segment one, and measure the resistance of M1912 and M1910 as a whole; if the resistance of M1912 and M1910 as a whole is normal, then M356 is abnormal; if the resistance of M1912 and M1910 as a whole is abnormal, disconnect M1912 and M1910, and measure the resistance of M1912; if M1912 is normal, then M1910 is abnormal, and if M1912 is abnormal, then M1910 is normal.

[0035] The measurement line connection end one 3, the measurement line connection end two 4, and the switch 5 of the embodiment are located on the front side of the wing-body overheating detection element resistance auxiliary measurement device, in a spacious space for convenient operation, and do not need to be operated in a narrow space; and the lighting lamp strip 10 provides illumination, the illumination condition is good, further facilitating operation, improving work efficiency, and reducing personnel fatigue.

[0036] The embodiment does not need to connect the 22 wing-body overheating detection elements corresponding to the pins behind the LCR table measurement line connection overheating detection control component M237, does not need to frequently replace the connection points of the measurement line, has higher measurement efficiency, and will not cause damage to the pins behind the M237 electrical plug.

[0037] The wing-body overheating detection element 11 is relatively fragile, and frequent disassembly and assembly can easily cause damage, and the detection element is relatively expensive; the embodiment reduces the number of times of disconnecting and isolating the wing-body overheating detection element 11 as much as possible during measurement, reduces element damage, and reduces costs.

[0038] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wing-fuselage overheating detection element resistance auxiliary measuring device, characterized by, Including box (1), the rear end of the box (1) is fixedly connected with an aviation adapter electrical connector (2) for connecting with the rear electrical plug of the heat detection control assembly M237, and the front end is fixedly connected with a measurement line connection end one (3), a measurement line connection end two (4) and a change-over switch (5); The aviation adapter electrical connector (2) includes a ground terminal and a plurality of detection element channel connection terminals; The ground terminal is connected with the measurement line connection end two (4) through a wire, the detection element channel connection terminal is connected with the change-over switch (5) through a wire, and the change-over switch (5) is connected with the measurement line connection end one (3) through a wire; The change-over switch (5) is used to connect the measurement line connection end one (3) to different detection element channel connection terminals.

2. The wing-to-fuselage overheat detection element resistance auxiliary measuring device according to claim 1, characterized in that The number of the change-over switch (5) is two; The detection element channel includes a channel line (12) and an overheat detection element (11) connected to the channel line (12); The two ends of the channel line (12) are upstream end and downstream end; The detection element channel connection terminal includes a plurality of channel line upstream end connection terminals and a plurality of channel line downstream end connection terminals; Two change-over switches (5) are connected with the channel line upstream end connection terminal and the channel line downstream end connection terminal respectively.

3. The wing-to-fuselage overheat detector resistance auxiliary measuring device according to claim 1, characterized in that, The front end of the box (1) is fixedly connected with a lighting lamp strip (10) and a lamp strip brightness adjusting switch (6), the box (1) is internally provided with an aviation lithium battery (7), and the lighting lamp strip (10), the lamp strip brightness adjusting switch (6) and the aviation lithium battery (7) are connected through wires.

4. The wing-to-fuselage overheat detector resistance auxiliary measuring device of claim 1, wherein, The side of the box (1) is connected with a side door (102) through a hinge (101), and the side door (102) is provided with a heat dissipation hole (103) and a side handle (104).

5. The wing-to-fuselage overheat detector resistance auxiliary measuring device of claim 1, wherein, The front side of the box (1) is fixedly connected with a handle (8) and an auxiliary locking mechanism (9) for connecting with an aircraft E1 electronic rack.

6. The wing-to-fuselage overheat detector element resistance auxiliary measuring device as claimed in claim 1, wherein, The wires connected with the aviation adapter electrical connector (2), the measurement line connection end one (3), the measurement line connection end two (4), the change-over switch (5), the lighting lamp strip (10), the lamp strip brightness adjusting switch (6) and the aviation lithium battery (7) are arranged in the interior of the box (1).

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