JP2005273589A - Electric blower fixing structure - Google Patents

Abstract

[Objective] To provide a fixing structure for an electric blower that can be easily attached to and detached from an electric blower, and can be connected and detached at the same time.
An electric blower fixing structure according to the present invention includes an electric blower 1 assembled by loading an electric blower body 2 having a frame body 21 with a propeller fan mounted on a holder 3, and a flat wall A housing 5 having a portion 6 and a housing-side connector 7 is provided. A terminal block portion 4 in which a pair of claw-like bodies 32 is molded at the end of the side wall portion 31 of the holding body 3 and a pressure contact contact to which the insulated wire 29 of the electric blower 1 is connected to one side surface of the side wall portion 31 is molded. It is formed. The wall 6 is formed with a through-hole 61 for hooking the claw-like body 32 by snap fitting at a portion where the electric blower 1 is attached, and the socket contact of the housing side connector 7 is a pin-like portion at the end of the pressure contact type contact It arrange | positions so that it may become a position facing.
[Selection] Figure 1

Description

  The present invention relates to a fixing structure of an electric blower that is mounted on a device including a heat source such as a semiconductor element and supplies cooling air.

Various devices such as a semiconductor conversion device are known as devices that incorporate a heat source such as a semiconductor element. However, devices that incorporate such a heat source often include an electric blower that supplies cooling air. ing. However, the electric blower generally requires a repeated maintenance and inspection at an appropriate time because of its short life compared with the above-mentioned various devices. For this reason, when attaching an electric blower to various devices, there is one in which the electric blower can be easily attached to and detached from the device (see, for example, Patent Document 1). In addition, there is an improved handling of connectors and electric wires for supplying power to the electric blower when the electric blower is attached to and detached from various devices (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 11-340665 (Page 3, FIGS. 1 and 2) Japanese Patent Laid-Open No. 2002-246781 (page 3, FIG. 1-4)

  As described above, since the electric blower needs to be repeatedly attached to and detached from various devices, when attaching and removing this electric blower, it is easy to attach and remove, and a connector for supplying power to the electric blower It is necessary to handle the electric wires easily. However, in the fixing structure of the electric blower according to the prior art described above, the one disclosed in “Patent Document 1” can be easily attached / detached by providing a claw-like body that is latched by snap fit. Although the structure to do is shown, it is not shown at all about connectors and electric wires. In what is disclosed in “Patent Document 2”, a screw is used for mounting the electric blower, and the mounting / removing operation of the electric blower and the connection / removal operation of the connector cannot be performed at the same time. It is hard to say that mounting / removing the electric blower is easy. Accordingly, an object of the present invention is to provide a fixing structure for an electric blower that can be easily attached to and detached from an electric blower, and that can simultaneously connect and remove a connector or the like.

In the present invention, the aforementioned object is
1) A housing-side connector having a socket contact attached to a flat plate-like wall portion of a housing in which a plurality of through-holes are formed and to which an electric blower is attached, and a plurality of claws hooked on the through-holes by snap fitting And the electric blower having a power supply terminal block having a pressure contact contact formed with a pin-like portion that fits into the socket contact of the housing-side connector, and the socket contact of the housing-side connector is electrically When the claw-like body of the blower is hooked on the through-hole by snap fitting, it is arranged at a position where it will be opposed to the pin-like portion of the pressure contact type contact, or
2) In the means described in item 1, the electric blower has a propeller-like impeller that blows air in a direction substantially parallel to a direction in which the claw-like body is hooked into the through-hole by a snap fit. A blower body having a rectangular parallelepiped frame with a square-shaped surface on the side of the anti-claw-shaped body that is substantially perpendicular to the air blowing direction of the impeller and a cylindrical side wall, and a rectangular tube shape A side wall portion having the claw-like body formed at the end, and a front wall portion on the side of the anti-claw-like body having a square shape and a guard body, and the side wall portion and the front wall portion. And a holding body for detachably storing the blower body from the claw-like body side in the space surrounded by the terminal body, and the terminal block portion is formed on the outer surface side of the side wall portion of the holding body, and further 3) The means according to claim 2, wherein a plurality of the blower bodies The holding accommodated parallel to the body, the pressure contact pressure contact portion to the deep formation of the contact is accomplished by a plurality of electric wires of the blower body was inserted into the pressure contact portion.

  In the fixing structure of the electric blower according to the present invention, the mounting operation to the wall portion of the casing of the electric blower can be performed using the claw-like body of the electric blower by adopting the configuration described in the section for solving the above-mentioned problems. It can be easily performed only by being inserted into the through hole of the wall portion and hooked. At this time, the connection between the terminal block and the housing-side connector requires no additional work because the positional relationship between the pin-shaped portion of the pressure contact type contact of the terminal block and the socket contact of the housing-side connector is as described above. This is done simultaneously by inserting the pin-shaped portion into the socket contact of the housing-side connector without requiring the above. Also, for removing the electric blower from the wall of the housing, the nail-like body is temporarily pushed inward with fingers, etc., and in this state, the electric blower is pulled out by hand to penetrate the nail-like body. It can be easily performed by extracting from the hole. At this time, the connection between the terminal block and the housing side connector requires that some additional work is required because the pin-shaped portion of the pressure contact type contact of the terminal block is extracted from the socket contact of the housing side connector. It is canceled at the same time without. That is, with the electric blower fixing structure according to the present invention, when the electric blower is attached to or removed from the housing, the work is easy, and the connection and removal between the terminal block and the housing side connector can be performed simultaneously. In these operations, it is possible to obtain an effect that no tools are required.

  Furthermore, the mounting work to the wall portion of the housing of the plurality of electric blowers can be easily performed as in the case of one electric blower, and the electric wire connection can be performed with one press contact type contact. Space saving and cost reduction can be achieved.

The best mode for carrying out the present invention will be described below in detail with reference to the drawings. 1 is a developed perspective view of a fixing structure of an electric blower according to FIG. 2, which will be described later, FIG. 2 is a side view showing an outline of the fixing structure of the electric blower according to an embodiment of the present invention, and FIG. 1A is a view taken in the direction of the arrow P in FIG. 1, FIG. 3B is a view taken in the direction of the arrow R in FIG. 3A, and FIG. . 1 to 3, reference numeral 1 denotes an electric blower according to the present invention including an electric blower body 2 and a holding body 3, and reference numeral 5 denotes a casing according to the present invention including a wall portion 6 and a casing-side connector 7. It is.
The electric blower main body 2 has a frame body 21 on which a propeller fan (not shown) that is an electric blower having a propeller-like impeller is mounted, and an insulated wire (stranded wire) that supplies power to the propeller fan. ) 29 (two in this case). In this case, the frame 21 is a cylindrical body parallel to the blowing direction of the air 9 of the propeller fan (indicated by a white arrow in FIG. 2), and a side wall portion 22 having a rectangular parallelepiped shape and The front wall portion 23 having a square surface orthogonal to the blowing direction of the air 9 of the propeller fan is formed using a synthetic resin material as a bottomed cylindrical body. A through hole 24 through which air 9 flows is formed in the front wall portion 23.

In this case, the holding body 3 is formed of a synthetic resin material such as an ABS material as a bottomed cylindrical body by the side wall portion 31 and the front wall portion 35. The side wall portion 31 has a rectangular cross-sectional shape and a rectangular parallelepiped outer shape, and a pair of claw-like bodies 32 and 32 are formed at one end portion 31a thereof, and a side surface on which the claw-like body 32 is not formed. On one of them, a notch 33 for facilitating the routing of the insulated wire 29 is formed. The claw-like body 32 includes an arm portion 32a that can be elastically bent in a direction perpendicular to the side surface of the side wall portion 31 on which the claw-like body 32 is formed, and a jaw portion 32b that is formed at the distal end portion of the arm portion 32a. have. Further, a terminal block 4 for connecting the insulated wire 29 is provided on the side surface of the side wall 31 where the notch 33 is formed.
The front wall portion 35 has a square shape, and is formed with a through-hole 36 for the passage of air 9, which is integrally provided with a guard body 37 for protecting fingers and the like. The holding body 3 forms a space in which the end portion 31a side is opened by the side wall portion 31 and the front wall portion 35, and the size and shape that allows the electric blower main body 2 to be detachably stored from the end portion 31a side in this space. It is said that. As shown in detail in FIG. 3, the terminal block portion 4 includes press-contact contacts 41, 41 and an insulating table 46. In this case, the pressure contact 41 is formed in an L shape using a metal material, and a narrow groove 42 for connecting the insulated wire 29 by pressure welding to one end to which the insulated wire 29 is connected. And a pin-shaped portion 43 formed in a pin shape is formed at the other end.

  The insulating base 46 is formed using a synthetic resin material such as an ABS material, and U-shaped grooves 47 and 47 for guiding the insulated wire 29 are formed corresponding to the positions of the respective pressure contact type contacts 41. Yes. In the case of the terminal block 4, the press contact contacts 41 and 41 are molded in integrally when the insulating table 46 is formed. Further, the terminal block 4 may be formed by being molded in integrally with a portion of the holding body 3 excluding the terminal block 4, and different from the portion of the holding body 3 excluding the terminal block 4. It may be once molded as a body product and integrated with the molded product of the portion excluding the terminal block 4 of the holding body 3 by an appropriate method such as an adhesion method. Then, the electric blower main body 2 is loaded into the holding body 3 from the end portion 31a side, and the insulated wire 29 is inserted into the groove 47 of the terminal block portion 4 to be electrically connected to the press contact type contact 41. The blower 1 is assembled. At that time, it may be preferable to adjust the length of the insulated wire 29 as short as possible. When an excess portion of the insulated wire 29 is generated as a result, this portion is cut out using a nipper or the like.

The flat wall 6 of the housing 5 is formed at a position where the electric blower 1 is attached at positions where the through holes 61 and 61 are opposed to the claw-like bodies 32 of the electric blower 1, and the air 9 is passed through. A through hole 62 is formed. The through hole 61 hooks the jaw portion 32b of the claw-like body 32 by snap fitting. The housing side connector 7 is a connector {for example, an SMP connector of SM connector (trade name of Japan Crimp Terminal Manufacturing Co., Ltd.) series having the same number of socket contacts (not shown) as the pressure contact type contacts 41. When the SMP connector is used, the socket contact is a crimp-type contact, and the housing side connector 7 is attached to the wall portion 6 by a snap fit.
Since it is related, the pin-like portion 43 of the pressure contact 41 of the terminal block 4 is a pin that can be fitted with the socket contact of the SMP connector when the SMP connector is used for the housing side connector 7. It is preferable that it is equivalent to the shape dimension of the pin-shaped part of a contact. Thus, the housing side connector 7 is positioned so that the socket contact of the housing side connector 7 faces the pin-like portion 43 when the claw-like body 32 of the electric blower 1 is hooked on the through hole 61 by snap fitting. Be placed.

  Since the electric blower fixing structure according to an example of the embodiment of the present invention shown in FIGS. 1 to 3 is configured as described above, the mounting operation of the electric blower 1 on the wall 6 of the housing 5 is performed by the electric blower 1. This can be easily performed by simply inserting the jaw portion 32 b of the claw-like body 32 into the through hole 61 of the wall portion 6 and hooking the jaw portion 32 b to the through hole 61. At this time, the terminal block 4 and the housing-side connector 7 are connected to each other in the positional relationship between the pin-like portion 43 of the pressure contact 41 of the terminal block 4 and the socket contact of the housing-side connector 7 as described above. Thus, the pin-like portion 43 is simultaneously fitted into the socket contact of the housing-side connector 7 without requiring any additional work. The jaw 32b is hooked on the through hole 61 because the arm 32a of the claw-like body 32 can be elastically bent, and when the jaw 32b starts to be inserted into the through hole 61, the arm 32a The arm portion 32a returns to its original state when the jaw portion 32b is once bent inward and the jaw portion 32b comes out of the through hole 61, so that the jaw portion 32b is securely hooked to the through hole 61.

  Moreover, the removal operation | work from the wall part 6 of the housing | casing 5 of the electric blower 1 pushes the jaw part 32b of the nail | claw-shaped body 32 inside temporarily with a finger etc., and holds the electric blower 1 by a hand in this state. It can be easily performed by pulling out the jaw 32b from the through hole 61. At this time, the connection relationship between the terminal block 4 and the housing side connector 7 is such that the pin-like portion 43 of the pressure contact 41 of the terminal block 4 is extracted from the socket contact of the housing side connector 7, so It is released at the same time without requiring any work. That is, the structure of the electric blower 1 and the casing 5 according to the present invention is easy to work when the electric blower 1 is attached to or detached from the casing 5, and the operation between the terminal block 4 and the casing-side connector 7 is easy. Connection and disconnection can be performed simultaneously. Moreover, no tools are required except for the case where the electric blower 1 is replaced. In addition, even when the electric blower 1 is a new product or a replacement product, only a general tool nipper or the like is required, so that special tool preparation is basically unnecessary.

Next, an embodiment in which a plurality of electric blowers are fixed to the housing will be described. FIG. 4 is an exploded perspective view of a fixing structure when a plurality of electric blowers are fixed to a housing, and FIG. 5 is an explanatory view when inserting insulated wires of the plurality of electric blowers into grooves of a press contact type contact.
4 and 5, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals, but the portions different from FIGS. 1 to 3 are provided with two electric blower bodies 2 a and 2 b. In order to accommodate the two electric blower bodies 2a and 2b, the holding body 3 is expanded in the lateral direction. Thus, the holding body 3 is provided with through holes 36a and 36b for the flow of air 9 along with the expansion, but the terminal block 4 is provided in common.
The terminal block 4 has the same configuration as that of the other embodiment shown in FIG. 3. In this embodiment, the insulation of the two electric blower bodies 2 a and 2 b is provided in the groove 47 provided in the terminal block 4. Electric wires 29a1, 29a2, 29b1, 29b2 are inserted, and electrical connection is made in the same manner as in FIG.

  In the above description, the blower included in the electric blower 1 has been a propeller fan, but is not limited thereto, and may be a multiblade fan (sirocco fan), for example.

It is an expansion | deployment perspective view of the fixing structure of the electric blower by this invention. It is a side view which shows the outline | summary of the fixing structure of the electric blower by an example of this Embodiment. 1A, (a) is a view taken in the direction of arrow P in FIG. 1, (b) is a view taken in the direction of arrow R in FIG. 3 (a), and (c) is a cross-sectional view taken along line SS in FIG. 3 (b). is there. It is an expansion | deployment perspective view which shows the other Example of the fixing structure of the electric blower by this invention. It is explanatory drawing at the time of inserting the insulated wire of the electric blower shown in FIG. 4 in the groove | channel of a press-contact type contact.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric blower 2 Electric blower main body 21 Frame 29 Insulated wire 3 Holding body 31 Side wall part 32 Nail-like body 4 Terminal block part 5 Case 6 Wall part 61 Through-hole 7 Case side connector

Claims (3)

A housing-side connector having a socket contact mounted on a flat plate-like wall portion of a housing to which an electric blower is attached, in which a plurality of through holes are formed, and a plurality of claws that are hooked on the through holes by snap fitting , And the electric blower having a terminal block for power supply having a pressure contact type contact formed with a pin-like portion that fits into the socket contact of the housing side connector, and the socket contact of the housing side connector of the electric blower The electric blower fixing structure, wherein the claw-like body is disposed at a position where it is opposed to the pin-like portion of the press contact type contact when the claw-like body is hooked to the through-hole by a snap fit. 2. The electric blower fixing structure according to claim 1, wherein the electric blower has an impeller that blows air in a direction substantially parallel to a direction in which the claw-like body is hooked into the through hole by a snap fit. A blower body having a rectangular parallelepiped frame with a square-shaped surface on the side of the anti-claw-like body that is substantially orthogonal to the blowing direction of the impeller and a cylindrical side wall, and a rectangular tube shape A side wall portion having the claw-like body formed at the holding end portion and a front wall portion on the side of the anti-claw-like body having a square shape and a guard body are formed, and the side wall portion, the front wall portion, And a holding body that detachably houses the blower body from the claw-like body side, and the terminal block is formed on the outer surface side of the side wall of the holding body. Blower fixed structure. 3. The electric blower fixing structure according to claim 2, wherein a plurality of the blower bodies are housed in parallel in the holding body, a pressure contact portion of the pressure contact type is deeply formed, and a plurality of electric wires of each blower body are connected to the pressure contact. An electric blower fixing structure, wherein the electric blower is inserted into a portion.

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