JP2018032530A - Connector fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily remove a connector of a harness pulled out from an internal part such as an evaporator housed in a casing or the like of an automobile air-conditioning unit from the outer surface of the casing without a tool. Provides a connector fixing structure to obtain. SOLUTION: A connector 5 of a harness 4 pulled out from an evaporator housed in a casing 1 is provided with a clip 6, and the clip 6 is inserted into a fixing hole 7 on an outer surface of the casing 1 and locked. With respect to the structure for fixing the casing 1, the casing 1 is divided into an etch back case 11 provided with an opening 10 for inserting and removing the evaporator and an evaporator cover 12 for closing the opening 10 of the etch back case 11. A fixing hole 7 is set at the boundary between the evaporator 11 and the evaporator cover 12, and the fixing hole 7 is configured to be opened by removing the evaporator cover 12. [Selection diagram] Fig. 2

Description

  The present invention relates to a connector fixing structure.

  2. Description of the Related Art Conventionally, an automotive air conditioning unit called etch back (HVAC: Heater, Ventilator and Air Conditioner) is known. In this type of air conditioning unit, a heater core for heating and an evaporator for air conditioning are included. The evaporator is provided with a temperature sensor so that the surface temperature of the evaporator can be monitored, and the harness of the temperature sensor is pulled out from the inside of the air conditioning / air conditioning unit and externally connected via a connector with a retainer. It is designed to be connected to the harness.

  Here, the connector provided at the connection end portion of the harness on the temperature sensor side forms a female type so that the male connector provided at the connection end portion of the external harness can be inserted and connected, and protrudes from the bottom surface thereof. The clip is inserted and fixed in the fixing hole on the air conditioning / air conditioning unit side.

  As prior art document information related to the present invention, there is the following Patent Document 1 and the like.

JP 2002-52924 A

  However, in a commercial transport vehicle such as a truck that has been used for a long period of time, an evaporator that has deteriorated over time may need to be replaced during the period of use. The attached temperature sensor must also be replaced, but it is not easy to remove the temperature sensor side connector that is inserted and fixed via a clip so that it cannot be removed from the fixing hole on the air conditioning unit side. In addition, there is a problem that a very complicated operation of pulling out while holding down the clip so as to unlock the clip using a tool is required.

  The present invention has been made in view of the above circumstances, and when replacing an internal part such as an evaporator housed in a casing or the like of an automotive air conditioning unit, a harness connector pulled out from the internal part is attached to a tool. It is an object of the present invention to provide a connector fixing structure that can be easily detached from the outer surface of the casing without any need.

  The present invention includes a clip provided on a connector of a harness pulled out from an internal component housed in a casing, and the connector is fixed in a state where the clip is inserted into a fixing hole formed in an outer surface of the casing and locked. The casing is divided and configured by a main body having an opening for taking in and out the internal parts, and a lid that closes the opening of the main body, and the main body and the structure The fixing hole is set at a boundary with the lid body portion, and the fixing hole is opened by removing the lid body portion.

  Thus, in this way, when the lid is removed from the main body and the opening is opened in order to replace the internal components housed in the casing, the boundary between the lid and the main body is set. Since the fixing hole is opened, it is possible to easily remove the clip of the connector locked in the fixing hole by sliding it parallel to the fixing hole. The troublesome work of pulling out while pressing down so as to release the stop state becomes unnecessary.

  Further, in carrying out the present invention more specifically, at the outer edge portion that forms a boundary with the main body portion side in the lid portion, a slit that enters inward in a bay shape is formed, and the lid portion in the main body portion A rib that closes the open end of the slit is formed in an outer edge portion that forms a boundary with the side, and a fixing hole is defined by the slit and the rib in a state where the lid portion is attached to the main body portion. It is preferable to configure so that.

  Furthermore, it is also possible to target a casing of an automotive air conditioning unit that accommodates a heater core for heating and an evaporator for air conditioning as internal components, and the body portion can be an etch back case and the lid portion can be an evaporator cover. is there.

  According to the connector fixing structure of the present invention described above, when replacing internal components such as an evaporator housed in a casing or the like of an automobile air conditioning unit, the harness connector drawn from the internal components can be easily removed without using a tool. In addition, it can be removed from the outer surface of the casing, and an excellent effect can be obtained that the workability at the time of replacement of the internal parts can be greatly improved.

It is a general view which shows an example of the form which implements this invention. It is sectional drawing of the II-II arrow in the principal part of FIG. It is sectional drawing of the III-III arrow of FIG. FIG. 3 is a perspective view showing a fixing hole defined by a slit and a rib of FIG. 2. It is sectional drawing which shows the state which removed the evaporator cover of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of an embodiment for carrying out the present invention, which illustrates a case where the present invention is applied to an automotive air conditioning unit (etchback). A casing 1 of the air conditioning unit has a heater core for heating. 2 and an evaporator 3 for an air conditioner are housed as internal parts, and a harness 4 pulled out from a temperature sensor (not shown) provided on the fin surface of the evaporator 3 is pulled out of the casing 1 and has a retainer. 2 and 3, the connector 5 provided at the connection end of the harness 4 on the temperature sensor side is connected to the connection end of the external harness. The female connector 5 is formed so that the male connector 5 provided in the portion can be inserted and connected, and the clip 6 protruding from the bottom surface is fixed to the outer surface of the casing 1. Insert to the hole 7 is adapted to be fixed by engaged.

  Here, the connector 5 in which the clip 6 as described above is protruded from the bottom surface is a well-known conventional resin part, and in the example shown here, it is particularly easy to understand in FIG. The wing portion 8 that hangs on the outer periphery on the front side of the fixing hole 7 and bends and narrows when inserted into the fixing hole 7, and is restored and locked to the edge of the fixing hole 7. The connector 5 is formed by integrally forming a clip 6 having a locking claw portion 9.

  In the present embodiment, the casing 1 of the air conditioning / air conditioning unit includes an etch back case 11 (main body) having an opening 10 (see FIG. 2) for taking in and out the evaporator 3, and the etch. An evaporator cover 12 (lid portion) that closes the opening 10 of the back case 11 is divided, and the fixing hole 7 is set at the boundary between the evaporator cover 12 and the etch back case 11 and the fixing hole. 7 is configured to be opened when the evaporator cover 12 is removed.

  More specifically, as shown in FIG. 4, a slit 13 that enters the inner side in the shape of a bay is formed on the outer edge portion that forms the boundary with the etch-back case 11 side of the evaporator cover 12 by a stepped portion 14. In addition, a rib 15 that closes the open end of the slit 13 is formed at an outer edge portion of the etch back case 11 that forms a boundary with the evaporator cover 12 side, and the evaporator cover 12 is connected to the etch back case. 11, the fixing hole 7 is defined by the slit 13 and the rib 15.

  Thus, when the evaporator cover 12 is removed from the etch-back case 11 and the opening 10 is opened to replace the evaporator 3, the evaporator cover 12 and the etch-back case 11 are opened as shown in FIG. Since the fixing hole 7 set at the boundary is opened, the clip 6 of the connector 5 locked to the fixing hole 7 can be easily removed by sliding parallel to the fixing hole 7. Thus, a troublesome operation of pulling out the clip 6 while pressing it so as to release the locked state of the clip 6 using a conventional tool becomes unnecessary.

  Therefore, according to the above-described embodiment, when replacing the evaporator 3 in the air conditioning unit for automobiles, the connector 5 of the harness 4 pulled out from the evaporator 3 can be easily detached from the outer surface of the casing 1 without a tool. Thus, the workability at the time of replacing the evaporator 3 can be greatly improved.

  The connector fixing structure of the present invention is not limited only to the above-described embodiment, but can be applied to other than the air conditioning unit for automobiles, and various other modifications can be made without departing from the gist of the present invention. Of course, changes can be made.

1 Casing 2 Heater core (internal parts)
3 Evaporator (internal parts)
4 Harness 5 Connector 6 Clip 7 Fixing hole 10 Opening 11 Etch back case (main part)
12 Evaporator cover (lid part)
13 Slit 15 Rib

Claims (3)

  A structure in which a clip is provided on a connector of a harness pulled out from an internal component housed in a casing, and the clip is fixed in a state where the clip is inserted into a fixing hole formed in an outer surface of the casing and locked. The casing is divided into a main body provided with an opening for taking in and out the internal parts, and a lid that closes the opening of the main body, and the main body and the lid The connector fixing structure is characterized in that the fixing hole is set at the boundary of the connector, and the fixing hole is opened by removing the lid portion.   In the outer edge portion that forms a boundary with the main body portion side in the lid body portion, a slit that enters the inside in a bay shape is formed, and in the outer edge portion that forms the boundary with the lid body portion side in the main body portion, 2. The structure according to claim 1, wherein a rib for closing an open end is formed, and a fixing hole is defined by the slit and the rib in a state where the lid is attached to the main body. The connector fixing structure described.   An object of the present invention is a casing of an air conditioning unit for an automobile that accommodates a heater core for heating and an evaporator for air conditioning as internal components, and the main body portion is an etch back case and the lid portion is an evaporator cover. The connector fixing structure according to 1 or 2.

Images