JP6647878B2 - Component holders and electrical products - Google Patents

Description

  The present invention relates to a component holder for holding a specific component different from an electric circuit board inside an electric product, and an electric product incorporating the component holder.

  Inside an electric product, it is essential to appropriately hold wiring and other components so that they do not interfere with each other and lead to disconnection or short circuit, and techniques for that purpose have been proposed. For example, Patent Literature 1 discloses a technique for stably fixing a plurality of harnesses at once without using a wire holder. Patent Literature 2 discloses a cable clamp that stably holds cables having different diameters and the number of wires and, on the other hand, enables easy operation during holding.

JP 2013-150330 A JP 2012-010442 A

  However, in many cases, the internal wiring is one of the components of the electric product, and it is naturally assumed that the specification can be strictly specified, and it is not considered that the wiring path is changed.

  In the technique of Patent Literature 1, the wiring holding unit is formed integrally with the product outer shell, and aims to hold a single-specified line type in a single path. The cable clamp of Patent Literature 2 makes it possible to increase or decrease the number of wirings and to cope with a plurality of types of wires by using a holding part as a separate part having versatility called a cable clamp. In addition, since the cable clamp itself is movable, it is possible to cope with a change in the wiring route by preparing a hole for fixing. However, the cost increases because the cable clamp is a separate component. Changing the wiring path is not easy.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and an object of the present invention is to be able to easily cope with a change in the line type, the number, and the wiring route of the internal wiring of an electric product.

In order to achieve the above object, a component holder according to the present invention is a component holder that is attached to a mounting surface inside an electric product and holds a specific component different from an electric circuit board. The component holder includes a rear wiring holding portion that forms a space having a first opening surface and a second opening surface between the held specific component and the mounting surface, and a cable that is wired inside the electric appliance. And a front wiring holding section for holding . The rear wiring holding portion has a third opening surface that faces the mounting surface and connects the first opening surface and the second opening surface in a state where the specific component is not held. The front wiring holding portion is provided at a position deviated from the third opening surface, and a cable laid on a surface opposite to the space side surface of the held specific component, and a second wire held in the space. At least one of the cables extending from the opening surface is held.

  According to the present invention, the electric circuit board is wired inside the electric product between the specific component held by the component holder holding the specific component different from the electric circuit board and the mounting surface of the component holder. By forming a space through which the cable passes, it is possible to easily cope with changes in the line type, the number, and the wiring route of the internal wiring of the electric product.

It is the perspective view and bottom view which show the external appearance of the electric product which concerns on embodiment of this invention. It is a perspective view showing the state where the cover of the electric appliance concerning an embodiment was removed. FIG. 2 is a perspective view showing a LAN adapter according to the embodiment. FIG. 2 is a perspective view showing a component holder to which the LAN adapter according to the embodiment is attached. It is a figure which shows the state which holds a cable using the front wiring holding part which concerns on embodiment. It is a figure which shows the state which holds a cable using the rear wiring holding part which concerns on embodiment. It is a perspective view showing the parts holder concerning an embodiment.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals.

  FIG. 1 is a perspective view and a bottom view showing the appearance of an electric product according to an embodiment of the present invention. The electric product 1 is assumed to be mounted on a wall surface, and the longitudinal direction is the vertical direction in a standard mounting state. FIG. 1A is a perspective view of the electric product 1. The electric appliance 1 is covered with a cover 2 during normal use. The cover 2 is made of, for example, resin. FIG. 1B is a bottom view of the electric product 1. On the lower surface of the cover 2, which is located on the bottom surface of the electric product 1 in the standard mounting state, a cable extraction opening 3 for extracting a wiring cable from the inside of the electric product 1 is provided. When the cover 2 is removed, the inside can be visually recognized, and operations such as wiring and changing parts can be performed.

  FIG. 2 is a perspective view showing a state where a cover of the electric product according to the embodiment is removed. The printed wiring board 4 of the electric product 1 is provided on the back surface of the electric product 1 in a standard mounting state. The printed wiring board 4 is the electric circuit board according to the present invention. The lower half of the printed wiring board 4 in the drawing is the power supply circuit section 5 and the upper half is the signal circuit section 6. The power supply circuit section 5 is entirely covered with a shield case 7. The shield case 7 is made of, for example, sheet metal. The electric appliance 1 is connected to an external sensor such as a current sensor for measuring a current amount, a human sensor for detecting a person, a temperature sensor for detecting a room temperature, and a display unit. On the board of the signal system circuit section 6, there are provided an external sensor connection connector 8 for connecting to an external sensor and a display unit connection connector 9 for connecting to a display unit. An external sensor connection cable 14 is connected to the external sensor connection connector 8, and a display unit connection cable 15 is connected to the display unit connection connector 9.

  Various electric and electronic components are mounted on the substrate of the signal system circuit unit 6. The component holder 10 is mounted on a substrate of the signal circuit 6 so as to cover various electric and electronic components, and a LAN adapter 11 for external communication is mounted thereon. In the present embodiment, the back surface of the electric product 1 in the standard mounting state on which the printed wiring board 4 is provided is the mounting surface of the component holder 10. Since the LAN adapter 11 and the signal circuit section 6 do not directly contact each other, the electrical connection is ensured by connecting the LAN adapter connection cable 12 to the LAN adapter connector 13 on the board of the signal circuit section 6.

  FIG. 3 is a perspective view showing the LAN adapter according to the embodiment. The LAN adapter 11 includes a wireless LAN adapter 11A of a wireless type and a wired LAN adapter 11B of a wired type. FIG. 3A is a perspective view of the wireless LAN adapter 11A. FIG. 3B is a perspective view of the wired LAN adapter 11B.

  The wireless LAN adapter 11A and the wired LAN adapter 11B have the same external dimensions and shape, and either one is selected and mounted on the component holder 10. The wireless LAN adapter 11A and the wired LAN adapter 11B have the same shape and draw-out position of the LAN adapter connection cable 12, and can be replaced. The wired LAN adapter 11B is provided with a LAN connector 23 for connecting a LAN cable 24. Hereinafter, the LAN adapter 11 will be referred to as the wireless LAN adapter 11A and the wired LAN adapter 11B if not.

  In the example of FIG. 2, four external sensor connection connectors 8 are provided, and up to four external sensors can be connected by selecting an optional function. The maximum number of external connection cables is four for the external sensor connection cable 14 and one for the display unit connection cable 15. When the wired LAN adapter 11B is used, the number of the LAN cable 24 increases by one. Hereinafter, these cables are collectively referred to as each cable.

  The electric product 1 is shipped with the component holder 10 and the LAN adapter 11 attached. Since the external sensor and the display unit are connected after the electric product 1 is fixed to the wall surface, the connector 8 for connecting the external sensor and the connector 9 for connecting the display unit are connected to the upper end of the board of the signal circuit 6 in consideration of workability. It is summarized in. On the other hand, the cable outlet 3 is provided on the bottom surface of the cover 2 according to design requirements. For this reason, each cable is routed from the upper end to the lower end of the electric product 1, and is drawn out from the cable outlet 3.

  FIG. 4 is a perspective view showing a component holder to which the LAN adapter according to the embodiment is mounted. The wiring routed inside the electric appliance 1 needs to be routed appropriately so as not to cause disconnection or short circuit due to interference with various components. For this reason, the component holder 10 is provided with a front wiring holding section 31 and a rear wiring holding section 32. When the electric product 1 is installed, the component holder 10 and the LAN adapter 11 are attached in advance, so that each cable is usually routed over the component holder 10 and the LAN adapter 11. At that time, the front wiring holding unit 31 is used.

  The electrical product 1 is required to be as thin as possible due to design requirements. For this reason, the distance between the LAN adapter 11 and the cover 2 and the distance between the shield case 7 and the cover 2 are designed to be as small as possible. With such a design, when each cable is overlapped and routed, the attached cable is crushed by attaching the cover 2, and the cover 2, each cable, the LAN adapter 11, the component holder 10, and the printed wiring board 4 are crushed. Under pressure, these components can be damaged by prolonged use. The front wiring holding section 31 is for preventing such damage of various components. The front wiring holding unit 31 is arranged in parallel so that the maximum number of cables that can be wired is not overlapped so that the cables arranged on the front surface of the attached LAN adapter 11 are arranged and the overall thickness is suppressed. The hook shape is wide enough to hold.

  FIG. 5 is a diagram illustrating a state where a cable is held using the front wiring holding unit according to the embodiment. FIG. 5A is a perspective view showing the routing of the wiring using the front wiring holding unit 31, and FIG. 5B is an enlarged view of the front wiring holding unit 31 viewed from the side. is there. Although either the wireless LAN adapter 11A or the wired LAN adapter 11B can be selected, FIG. 5 shows an example in which the wired LAN adapter 11B is mounted on the component holder 10 on the assumption that the number of wires is maximized. The maximum distance in the normal direction from the printed wiring board 4 is the front surface of the front wiring holding portion 31, and the front surface has a positional relationship that does not interfere with the inner surface of the cover 2. Each cable has a shape crawling on the front surface of the wired LAN adapter 11B and the shield case 7. Even if the cables may bend and come into contact with the inner surface of the cover 2, if the cables do not overlap, there is no pressure applied to the cables and various components that could damage them.

  According to such a configuration, for example, the wireless LAN adapter 11A is selected and the electric appliance 1 is installed, but the wireless connection cannot be established for some reason, or the connection is unstable, and it is necessary to change to the wired LAN adapter 11B. We can easily cope with case. In this case, the wireless LAN adapter 11A is removed from the place where the wiring has already been performed and the cables are arranged using the front wiring holding section 31 so that the cables do not overlap. It is relatively easy to remove the wireless LAN adapter 11A, but if the front wiring holding unit 31 is used to attach the alternative wired LAN adapter 11B, the wired LAN adapter 11B can be removed by avoiding the cables disturbed at the time of removal. After attaching to the component holder 10, the trouble of rearranging each cable is required.

  Therefore, when attaching the LAN adapter 11 after wiring, the rear wiring holding unit 32 is used. The rear wiring holding portion 32 has a simple groove-like structure having a rectangular cross section. The groove-like structure of the rear wiring holding portion 32 has a width that allows the maximum number of cables that can be wired to be fitted together. The cables after the wiring can be collectively fitted to the rear wiring holding section 32 and the LAN adapter 11 can be attached. As a result, each cable is covered with the LAN adapter 11, so that the cable is not crushed by attaching the cover 2.

  The component holder 10 is required not to interfere with various electric and electronic components mounted on the signal circuit 6 of the printed wiring board 4. There are various electric and electronic components having a certain height such as an electrolytic capacitor. Assuming that a wide hook shape, which has a reduced height but requires a correspondingly large area like the front wiring holding portion 31, is adopted for the rear wiring holding portion 32, various electric and electronic components on the signal system circuit portion 6 are formed. The rear wiring holding portion 32 is provided on the component, and the LAN adapter 11 is mounted thereon, which increases the overall height. On the other hand, various electric and electronic components on the signal system circuit section 6 are arranged side by side, and the various electric and electronic parts are covered with the component holder 10 having the groove-shaped rear wiring holding portion 32 in the center portion. Thus, the overall height can be suppressed.

  The rear wiring holding unit 32 has a space having an upper opening surface and a lower opening surface for passing each cable between the attached LAN adapter 11 and the central portion on the signal system circuit unit 6 covered with the component holder 10. To form The upper opening surface and the lower opening surface are the first opening surface and the second opening surface in the present invention. When the LAN adapter 11 is removed, the rear wiring holding unit 32 has a front opening connecting the upper opening and the lower opening. The front opening surface is the third opening surface in the present invention.

  For example, when various electric and electronic components are arranged side by side and the central portion on the signal system circuit portion 6 is covered with another shield component, the rear wiring holding portion 32 is not a groove-shaped structure but attached. A space having an upper opening surface and a lower opening surface for passing each cable is formed between the LAN adapter 11 and a central portion of the signal system circuit portion 6 covered with another shield component, and the LAN adapter 11 is removed. It may have a structure having a front opening surface in a closed state. Further, the front opening surface is an opening surface connecting the upper opening surface and the lower opening surface, since it is sufficient that each cable can be fitted into a space having an upper opening surface and a lower opening surface, and Any opening surface having a width of one thick cable may be used.

  FIG. 6 is a diagram illustrating a state in which a cable is held using the rear wiring holding unit according to the embodiment. FIG. 6A is a perspective view illustrating the routing of wiring using the rear wiring holding unit 32, and FIG. 6B is an enlarged view of the rear wiring holding unit 32 viewed from the side. FIG. 6 shows an example in which the wired LAN adapter 11B is mounted on the component holder 10 on the assumption that the number of wires is maximum, as in the case of FIG. Each cable that has passed through the rear wiring holding portion 32 creeps on the front surface of the shield case 7 in the vicinity of the shield case 7 as in the case where the front wiring holding portion 31 is used. Therefore, even when the rear wiring holding section 32 is used, it is necessary to arrange the cables so as not to overlap each other by using the front wiring holding section 31 in this portion. Therefore, the position of the front wiring holding portion 31 is set to a position where the cables passed through the rear wiring holding portion 32 can be arranged so as not to overlap on the front surface of the shield case 7.

  Even if the cables passed through the rear wiring holding portion 32 are overlapped on the front surface of the shield case 7, there is a gap between the shield case 7 and the cover 2 such that the overlapping cables are not crushed by attaching the cover 2. In this case, the position of the front wiring holding portion 31 may be any position that can arrange the cables so that they do not overlap each other on the front surface of the LAN adapter 11 to which each cable is attached. FIG. 5 shows an example in which all the cables are held in the front wiring holding unit 31, and FIG. 6 shows an example in which all the cables are held in the rear wiring holding unit 32. The wiring holding unit 32 may hold the other, and the other may hold the front wiring holding unit 31. For example, when the direction of inserting the LAN cable 24 into the LAN connector 23 is determined, the external sensor connection cable 14 and the display unit connection cable 15 are held by the rear wiring holding section 32, and the LAN cable 24 is connected to the front wiring holding section. If it is held at 31, it is not necessary to change the direction in which the LAN cable 24 is inserted when attaching the wired LAN adapter 11B after wiring.

  FIG. 7 is a perspective view showing the component holder according to the embodiment. At the end of the horizontal bar portion of the front wiring holding portion 31 of the component holder 10, a projection 61 is provided to prevent the cable from falling off. The protrusion 61 is not limited to a semicircular shape as shown in FIG. The back surface 62 of the horizontal bar portion has a wavy structure to prevent lateral displacement of the cable. By arranging each cable according to the unevenness of the back surface 62, each cable can be held so as not to overlap. Since it is assumed that the front wiring holding portion 31 is easily broken due to its structure, the root portion 63 and the corner portion 64 of the horizontal bar portion are reinforced to prevent breakage. A reinforcing portion 67 is provided to ensure necessary strength. This can reduce the possibility of damage when the component holder 10 is handled alone.

  The LAN adapter holding section 65 holding the LAN adapter 11 is provided with a step so that the mounting position of the LAN adapter 11 can be easily determined. The LAN adapter holding unit 65 is a specific component holding unit in the present invention. The rear wiring holding section 32 has a groove-like structure having a rectangular cross section and a smooth surface. As a result, unnecessary pressure and frictional force are not applied to each cable passing through the rear wiring holding section 32. The die removing portion 66 is a structure that enables the component holder 10 including the front wiring holding portion 31 to be integrally formed, and is hollow. For example, the component holder 10 can be realized at low cost by integrally molding the LAN adapter holding section 65, the front wiring holding section 31, and the rear wiring holding section 32 using resin as a material. Since the component holder 10 has a shape in which the center portion is largely hollowed out for the rear wiring holding portion 32, the reinforcing portion 67 is provided to secure necessary strength. This can reduce the possibility of damage when the component holder 10 is handled alone.

  As described above, according to the component holder 10 of the present embodiment, the rear wiring that forms a space for passing each cable between the LAN adapter 11 held by the LAN adapter holding unit 65 and the mounting surface of the component holder 10. The provision of the holding unit 32 makes it possible to easily cope with changes in the line type, the number, and the wiring route of the internal wiring of the electric product 1. In addition, by providing the front wiring holding portion 31 for holding each cable in a state of being laid in front of the LAN adapter 11, when the cover 2 is attached, a pressure that may cause damage to each cable and various parts when the cover 2 is attached. Can be prevented. Furthermore, by integrally forming the LAN adapter holding section 65, the front wiring holding section 31, and the rear wiring holding section 32 of the component holder 10, the cost for the internal wiring of the electric product 1 can be suppressed.

  In the above-described embodiment, whether to use the front wiring holding unit 31 or the rear wiring holding unit 32 is determined depending on whether the LAN adapter 11 is attached before or after the wiring, and the wiring path is changed. . However, the present invention is not limited to this, and the wiring route may be changed depending on the type and number of cables. For example, when the type of each cable is large and the number of cables is large, the front wiring holding unit 31 is used to facilitate wiring. When the type of each cable is thin and the number of cables is small, the rear wiring holding unit 32 is used so that the LAN adapter 11 can be easily replaced.

  In the above-described embodiment, the component holder 10 including both the front wiring holding portion 31 and the rear wiring holding portion 32 has been described. However, when the space between the LAN adapter 11 and the shield case 7 and the cover 2 is sufficiently large. , The front wiring holding unit 31 may not be provided.

  In the above embodiment, the cable outlet 3 is provided on the lower surface of the cover 2, but is not limited thereto, and may be provided on the side surface of the cover 2. The rear wiring holding portion 32 has an upper opening surface through which each cable passes and a lateral opening surface opened to the cable extraction opening 3 between the attached LAN adapter 11 and the mounting surface of the component holder 10. Form a space. In this case, the upper opening surface and the lateral opening surface are the first opening surface and the second opening surface in the present invention.

  In the above-described embodiment, as the external device connected to the electric product 1, an external sensor such as a current sensor, a human sensor, and a temperature sensor and a display unit have been described as an example. However, the present invention is not limited to this. Any external device that can be connected by providing a connector on the substrate of the unit 6 may be used.

  1 electrical product, 2 cover, 3 cable opening, 4 printed circuit board, 5 power supply circuit, 6 signal system circuit, 7 shield case, 8 connector for external sensor connection, 9 connector for display unit connection, 10 component holder , 11 LAN adapter, 11A wireless LAN adapter, 11B wired LAN adapter, 12 LAN adapter connection cable, 13 LAN adapter connection connector, 14 external sensor connection cable, 15 display unit connection cable, 23 LAN connector, 24 LAN cable, 31 Front wiring holding part, 32 Rear wiring holding part, 61 Projection, 62 Back surface, 63 Root part, 64 corner part, 65 LAN adapter holding part, 66 Die removal part, 67 Reinforcement part.

Claims (11)

A component holder that is attached to a mounting surface inside the electric product and holds a specific component different from the electric circuit board,
A rear wiring holding portion that forms a space having a first opening surface and a second opening surface between the held specific component and the mounting surface ;
A front wiring holding unit for holding a cable wired inside the electrical product ,
Said rear wiring holding part is in a state in which the particular component is not held, connecting the first opening surface and said second opening surface, have a third opening surface opposed to the mounting surface,
The front wiring holding portion is provided at a position shifted from the third opening surface, and the cable crawls on a surface opposite to the space side surface of the held specific component; Holding at least one of the cable and the cable extending from the second opening surface;
Parts holder.   A component holder attached to the interior of the electrical product and holding a replaceable specific component different from the electrical circuit board provided in the electrical product,
  A specific component holding unit that holds the specific component,
  A rear wiring holding unit that forms a space having a first opening surface and a second opening surface with the specific component in a state where the specific component holding unit holds the specific component,
  In a state where the specific component holding unit holds the specific component, an external connection connector provided on the electric circuit board and located in any direction of the first opening surface or the second opening surface, When a cable is wired and connected between a cable extraction opening provided in the cover of the electric appliance and located in a direction of an opening different from the opening provided with the external connection connector, The cable is routed so as to crawl on the front of the specific component,
  In a state where the cable is wired, when replacing the specific part, the cable is wired so as to fit in the rear wiring holding unit,
  Parts holder. The component holder according to claim 2 , further comprising a front wiring holding portion configured to hold a cable wired inside the electric product in a state of being laid on a front surface of the held specific component. Component holder according to claim 1 or 3 and the specific component holder, said rear wiring holding part and the front line holding portion is integrally molded to hold the particular component. The electric circuit board is provided on the mounting surface inside the electric product covered by the cover,
The rear wiring holding unit, between the held specific components and the electric circuit board, so as not to interfere with the electric circuit board, holds a cable wired inside the electric product,
The front wiring holding unit holds a cable wired inside the electric product, between the held specific component and the cover so as not to interfere with an inner surface of the cover.
The component holder according to claim 1 . It said front wiring holding part and the rear wire holding portion, component holder according to any one of claims 1, 3 5 respectively different shapes. The rear wiring holding portion is a groove-shaped structure having a width capable of collectively fitting a maximum number of cables that can be wired inside the electric product, and the front wiring holding portion is provided inside the electric product. 7. The component holder according to claim 6 , wherein the component holder has a hook shape having a width capable of holding a maximum number of cables that can be routed in parallel without overlapping. An electrical product comprising therein the component holder according to any one of claims 1 to 7 , a specific component different from the electric circuit board, and a connector for a cable to be wired. 9. The electric product according to claim 8 , wherein the specific parts are two types of parts having the same shape and different functions, and can be replaced. The electrical product according to claim 9 , wherein the two types of parts having the same shape and different functions are a wireless LAN adapter for external communication and a wired LAN adapter. The electrical product according to any one of claims 8 to 10 , wherein the electrical product can be connected to a plurality of external devices by wire, and the number of cables wired inside increases / decreases depending on the number of the connected external devices.

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