JPH083983Y2 - Electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an electrical connector of an electric heating device.

[Prior Art] Conventionally, in the field of electric warmers, particularly electric carpets, the controller unit is detachable. Since the electric carpet does not collect heat in the summer, the controller part is removed and the electric carpet body is used as a rug for an all-season type.

Therefore, the controller section and the electric carpet body are connected by an electric connector.

Such an electric carpet has an electric connector as shown in FIGS. 5 to 6.

The illustrated electrical connector has a mating connector 1 fixed to an electric carpet body (not shown), and a connector 2 which is detachably fitted to the mating connector 1 to be electrically connected. The mating connector 1 has a mating housing 3 made of an electrically insulating material. Inside the mating housing 3, a plurality of conductive mating contacts 4 such as pin contacts are provided in parallel. The respective mating contacts 4 are connected to the ends of the heater wire and the sensor wire arranged inside the electric carpet body.

On the other hand, the connector 2 fitted to the mating connector 1 has a housing 5 made of an electrically insulating material. Inside the housing 5, a plurality of conductive contacts 6 such as socket contacts are provided. Each contact 6 is connected to a controller unit (not shown). A hook member 8 is provided inside the housing 5 to prevent the contact member 4 from coming off when it is fitted into the mating contact 4. The hook member 8 has a protrusion 12 that protrudes upward from a hole 10 formed in the upper surface of the housing 5. An engaging portion 13 is formed at the end of the protrusion 12 in the longitudinal direction. The engaging portion 13 extends upward from the hook member 8 and projects from a hook hole 15 formed in the upper surface of the housing 5.

The hook member 8 is constantly pressed against the upper surface of the housing 5 by a spring 17 provided between the bottom surface of the housing 5 and the protrusion 12 of the hook member 8.

Now, when the housing 5 is fitted into the mating housing 3 as shown in FIGS. 7 and 8, the mating contact 4 inside the mating housing 5 contacts the contact 6 of the housing 5.
Are fitted together to obtain an electrical connection. At this time, the hook member 8 advances while the engaging portion 13 thereof is pressed against the upper surface of the mating housing 3 and falls into the housing 5. When the contact 6 is completely in contact with the mating contact 4, the engagement receiving hole 19 formed on the upper surface of the mating housing 5
The engaging portion 13 is hooked by the pressure of the entering spring 17 and the mating connector 1 and the connector 5 are prevented from coming off. When detaching the connector 5 from the mating connector 3, the protrusion 12 of the hook member 8 is pressed toward the inside of the connector 5.

By doing so, the engaging portion 13 of the hook member 8 is depressed toward the inside of the connector 5 and the engaging receiving hole of the mating connector 1 is received.
Since it comes off from 19, the contact 5 can be removed.

[Problems to be Solved by the Invention] However, since the engagement receiving hole 19 of the mating housing 3 is formed on the upper surface of the mating housing 3, the appearance is deteriorated. Further, the engaging portion 13 of the hook member 8 is provided only in the engaging receiving hole 19.
Since one point is locked, there is a problem that it is easily disengaged.

Further, the prying of the housing 5, that is, the opening 20 of the connector 3 is expanded by the insertion / removal of the housing 5, and particularly when the number of contacts increases, when the housing 5 is inserted / removed from the contact 6, the housing 5 is displaced left / right while being inserted / removed. However, the excessive repetition of the deformation deforms the opening of the connector 3 to expose the internal charging part, resulting in a risk of electric shock.

Therefore, the purpose of the present invention is also to securely engage the connector with the mating connector to prevent disengagement of the connector, which also prevents electric shock. Another object is to provide a connector that is easy to assemble.

[Means for Solving the Problem] A connector in which a plurality of contacts provided in the main body of the electric heating tool are laterally poled and a mating connector having a mating contact at a position corresponding to the contact provided in the controller are fitted together. In the electrical connector, the connector is provided with a screw boss portion for fixing an upper side and a lower side of a housing material of the connector at substantially the center of an opening of an insertion port into which the mating connector is inserted. The inside of the screw boss of the opening consists of a protrusion formed by a spring to the outside of one side of the housing and a pair of engaging parts wider than the width of the screw boss formed on both sides of the other end. In order to avoid the screw boss, the insertion portion of the provided mating connector is provided with a pair of engaging portions facing each other inside the substantially U-shape so as to avoid the screw boss, Electrical connectors, wherein the engaging portion is engaged with the engagement receiving portion of the serial connector is obtained.

[Operation] In this connector, since the engagement receiving portion of the hook member engages with and engages with the engagement portion of the mating housing, it does not normally come off.

To remove the housing from the mating housing, the protrusion of the hook member is pushed, the spring is pushed, and the engagement receiving portion is disengaged from the engagement portion, so that the housing can be pulled out.

[Embodiment] FIGS. 1 and 2 show an embodiment of the connector of the present invention. FIG. 1 is a sectional view taken along the line AA of FIG.

The illustrated connector has a mating connector 30 that is fixed to a controller (not shown) and a connector 32 that is detachably fitted to the mating connector 30 to be electrically connected.

The mating connector 30 has a mating housing 31 made of an electrically insulating material. Inside the mating housing 31, a plurality of conductive mating contacts 35 such as socket contacts are provided in parallel. One end of each mating contact 35 is connected to an end of a heater wire or a sensor wire disposed inside the electric carpet body.
The other end of each mating contact 35 is connected to the mating housing 31.
One-to-one in each through hole (not shown) formed in the front surface of the
Is directed at. Mating contact of mating housing 31
The portion provided with 35 includes a pair of flat plate-shaped insertion portions 38. A longitudinal groove 40 is formed in the middle of the insertion portion 38. The groove portion 40 is formed from the front surface of the insertion portion 38 toward the rear. Engaging portions 44 are formed on the surfaces of the groove portions 40 facing each other, that is, on the inner wall surfaces 42 in the longitudinal direction of the groove portions 40 so as to face each other and project toward each other.

On the other hand, the connector 32 that fits into the mating connector 30 has a housing 50 made of an electrically insulating material. Inside the housing 50, a plurality of contacts 51 such as pin contacts are provided in parallel. One end of each contact 51 is connected to a controller (not shown) via a conductive wire. The other end of each contact 51 is directed to the opening 53 on the front surface of the housing 50.

A hook member 52 is provided inside the housing 50. The hook member 52 is oriented substantially in the center of the housing 50 and in the longitudinal direction like the contact 51.

On the rear part of the hook member 52, a protrusion 54 extending upward is formed. The protrusion 54 extends upward through a hole 58 formed in one face plate 56 of the housing 50. At the front portion of the hook member 52, engagement receiving portions 60 protruding from both side surfaces of the hook member 52 are formed. On the front surface of the engagement receiving portion 60, an inclined surface 61 is formed which is formed so as to fall forward. Further, the hook member 52 is provided with a spring 65 between the inner bottom surface 64 of the housing 50 and the lower surface of the protrusion 54 of the hook member 52. The hook member 52 is pressed against the upper surface plate 56 of the housing 50 by the spring 65.

Now, the insertion portion 38 of the mating housing 31 is shown in FIGS.
As shown, it is fitted into the housing 50. FIG. 3 is a sectional view taken along line BB in FIG. That is, the insertion portion 38 of the mating housing 31 is inserted and fitted through the opening 53 of the housing 50. When the housing 50 and the mating housing 31 are fitted to each other, the mating contacts 35 and the contacts 51 are fitted one-to-one to obtain electrical contact.

By the way, the engaging portion 44 of the inserting portion 38 hits the engaging receiving portion 60 of the hook member 52 during the fitting operation, and when the engaging portion 44 further advances along the inclined surface 61, the tip portion of the hook member 52 is moved. Move down a little.

In this way, when the engagement receiving portion 60 continues to advance in the fitting direction, the engagement portion 44 advances slightly behind the engagement receiving portion 61. In this state, the fitting of the connector 32 and the mating connector 30 is completed, and the engagement receiving portion 60 of the hook member 52 moves toward the upper plate 56 of the housing 50 by the reaction force of the spring 65.
Therefore, the engagement portion 44 and the engagement receiving portion 61 are engaged with each other.

The upper surface and the lower surface of the housing 50 are firmly fixed by the screw 70 of the screw boss portion 80.

When the mating connector 30 and the connector 32 are removed, the protrusion 54 of the hook member 52 is pressed inward of the housing 50 to disengage the engagement portion 44 from the engagement receiving portion 61. Therefore, the connector 32 is pulled out while the protrusion 54 of the hook member 52 is continuously pressed.

[Effects of the Invention] As described in the above embodiments, according to the connector of the present invention, the mating connector has no holes for engaging the connector, and the appearance is improved.

Also, because the mating connector has two insertion parts,
It is easy to engage, and there is no risk of electric shock due to exposure of the charging part due to disassembly of the opening near the screw stop part of the connector due to twisting of the mating connector and the mating connector and the connector can be held in a balanced manner .

[Brief description of drawings]

1 is a sectional view showing an embodiment of the connector of the present invention, FIG. 2 is a plan view of the connector of FIG. 1, FIG. 3 is a sectional view showing a fitted state of the connector of FIG. 1, and FIG. FIG. 5 is a plan view of the connector of FIG. 3, FIG. 5 is a sectional view of a conventional connector, and FIG.
5 is a plan view of the connector of FIG. 5, FIG. 7 is a cross-sectional view showing a fitted state of the connector of FIG. 5, and FIG. 8 is a plan view of the connector of FIG. 30 …… Mating connector, 31 …… Mating housing, 32 …… Connector, 35 …… Mating contact, 40 …… Groove part, 44 …… Engaging part, 50 …… Housing, 52 …… Hook member, 54 …… Projection Part, 60 ... Engagement receiving part.

Claims (1)

[Scope of utility model registration request] 1. An electrical heater comprising: a connector in which a plurality of contacts provided on a main body of an electric heating tool are laterally poled; and a mating connector having a mating contact at a position corresponding to the contact, which is provided on a controller. In this electrical connector, a screw boss portion for fixing the upper side and the lower side of the housing material of the connector is provided substantially at the center of the opening of the insertion opening into which the mating connector is inserted, and the screw boss of the insertion opening is provided. Inside the inside of the portion, a spring is formed by a protrusion protruding to the outside of one side of the housing, and a pair of engaging portions wider than the screw boss width formed on both side surfaces of the other end.
The insertion portion of the mating connector provided on the controller is provided with a pair of engaging portions facing each other inside the U-shape so as to avoid the screw boss, and engages with the engagement receiving portion in the connector. An electrical connector characterized in that a mating portion is engaged.