JP3082811U - Waterproof case for electric circuit device - Google Patents

Abstract

(57) [Problem] To provide a waterproof case for an electric circuit device. An electronic or electric circuit device is provided inside a case composed of a first case and a second case.
A joint is provided at an edge of the joint between the case and the second case, and a convex rib and a concave groove are provided at two corresponding joints. An outlet is provided outside the second case, at least one groove is provided therein, one end of the output head is connected to an electric cable, and a fitting portion is provided at the other end, and an outside thereof is provided. A slight convex rib is provided, and is fitted inwardly into the concave groove of the outlet port. The combination of the convex rib and the concave groove increases the waterproof gap and the path between the combined portions, and the first
Waterproofing, moistureproofing, and leakproofing of the inside of the case and the inside of the second case are achieved.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a type of waterproof case for an electric circuit device, and more particularly, to a combination structure of a case for preventing a cover case of an electronic circuit and an electric circuit, and for preventing moisture and leakage.

[0002]

[Prior art]

 Electric circuit devices are widely used in the control, detection, power conversion and supply, and communication of various appliances and equipment. For example, electronic or electrical circuits, such as traditional lamps or tree light controllers, light controllers, etc., provide the functions of power conversion, control, and detection control, and many of these electronic or electrical circuits have many sophisticated features. An electronic element, an electric element, for example, an electronic or electric element such as a transformer, an IC in a printed circuit board, a rectifier, a crystal tube, and a light detecting element is provided. It is necessary to achieve the function of automatic flashing control of lights and lamps, and therefore to protect these important elements.

[0003] However, traditionally, protection methods for electronic or electric circuit devices include not only voltage and current circuit interruption protection, but also important electronic or electric circuits such as transformers, printed circuit boards or photodetectors in an insulating case. It covers the electrical elements so that they are not directly destroyed by the external environment. However, when electric circuit devices are used, it is necessary to install control equipment, and they are not necessarily used indoors or in a dry environment. For example, large tree lights are installed outdoors. Therefore, if a tree light controller or an electric controller such as an optical controller with automatic flashing control day and night is required, it needs to be installed outdoors in accordance with the tree light or the lamp device.

[0004] The well-known tree light controller or light controller described above is used in any outdoor mounted electrical circuit device, usually in direct high frequency heating connection, screwing or snapping together with the combination between its outer casings. Therefore, a relatively large seam is formed at the joint between the cases, and after prolonged use, the internal precision electronic or electric elements are easily damaged by moisture. However, there was a problem and a drawback that the short circuit of the circuit was damaged by the launch.

[0005] In addition, another method of waterproofing the outer case of an electric circuit device widely used in the industry is to cover the upper surfaces of these important components directly with a hot melt resin or directly cover the entire surface with an epoxy resin. And completely sealing the entire electric circuit device in a case. This is a relatively passive prevention and moisture protection method that allows water to enter the case or allow moisture to enter. However, important electronic or electric elements are protected by the insulating and waterproofing function of the hot melt resin or the epoxy resin.

The waterproof structure in which a hot melt resin or an epoxy resin is injected into the above case has a drawback that it consumes time and labor in the process of manufacturing an actual electric circuit device, and increases the manufacturing cost of a product. In addition, the weight of the entire product increases, which makes the product heavier and disadvantageous for outdoor use. In addition, during the processing process, the temperature or chemical properties of hot melt resin and epoxy resin are made incompatible with high-grade electronic or electrical components such as IC or crystal tube, and the temperature or dose during injection may be controlled incorrectly. This is likely to happen, leading to the destruction and expiration of these key electronic components, which, in turn, has increased the difficulty of producing and manufacturing the product.

In addition, the above-described water-proofing method of injecting a hot melt resin or an epoxy resin into a case,

[0008]

[Problems to be solved by the invention]

 The main object of the present invention is to provide a kind of waterproof case for an electric circuit device, which is provided with a concave groove and a convex rib which are correspondingly joined at a joint portion between the cases, and has a leak-proof gap. Bends and extends to achieve internal leakproof, moistureproof and waterproof functions.

A second object of the present invention is to provide a kind of waterproof case for an electric circuit device, which can be driven inside the case without injecting hot melt resin or epoxy resin into the case. Achieve leakproof, moistureproof and waterproof functions.

[0010] A third object of the present invention is to provide a kind of waterproof case of an electric circuit device, which is disassembled and repaired when electronic or electric circuit in the case is damaged. It can reduce the cost of equipment and eliminate the problem of environmental pollution due to the large amount of disposal of plastic cases.

[0011]

[Means for Solving the Problems]

 The invention according to claim 1 is a waterproof case for an electric circuit device, comprising a first case and a second case which correspond to each other and are combined and house the electric circuit device together inside the first case and the second case. A joint portion is provided at a joint portion of the first case, and a convex rib and a concave groove are provided corresponding to the inside thereof. The waterproof gap is extended and bent, and at least one outgoing line is provided on the first case and the second case. An outlet is provided, a slight groove is provided in the inside, one end of one output head is connected to an electric cable, and another convex rib is provided on the other end, and the output port is recessed inward. The fitting between the first case and the second case and the combination of the convex rib and the concave groove at the outlet of the first case and the second case prevent the gap between the first case and the second case, and prevent moisture and leak. As a water-proof case for electric circuit devices, That. The invention according to claim 2 is characterized in that a fixing rib piece is provided in the first case and the second case to be used for fixing a transformer core. Case. According to a third aspect of the present invention, there is provided a waterproof case for an electric circuit device according to the first aspect, wherein a sensitive opening is provided in the first case to be used for coupling a lens element. The invention according to claim 4 is characterized in that an elastic packing is provided in a concave groove of a joint portion of the second case, so that a combination between the first case and the second case is tight. The waterproof case of the electric circuit device described in (1).

[0012]

[Embodiment of the invention]

 The waterproof case of the electric circuit device according to the present invention comprises a first case and a second case which are joined together to form a case, and an electronic or electric circuit device is housed jointly inside the first case and the second case. A joint is provided at the peripheral portion of the joint of the case, and a convex rib and a concave groove are provided at two corresponding joints, so that the first case and the second case are matched and combined, and the first case is combined. At least one outlet is provided at one end of the second case, at least one groove is provided therein, one end of one output head is externally connected to the electric cable, and a fitting portion is provided at the other end. Are provided, and some convex ribs are provided on the outside, and they are fitted inwardly into the groove of the outlet port.The combination of the convex rib and the groove extends the waterproof gap and path between the combination parts. Inside the first case and the second case Waterproof, moisture-proof, the effect of the leak-proof is achieved.

[0013]

【Example】

 As shown in FIGS. 1, 2 and 3, the waterproof case of the electric circuit device of the present invention is hereinafter referred to as a waterproof case, and is denoted by reference numeral 100 in the following related drawings. Among them, the waterproof case 100 includes a first case 10 and a second case 20 and is a case in which the two cases correspond to each other and are combined. The form thereof is not limited, and the embodiment shown in FIGS. In this example, the embodiment used for the description is an optical control plug type tree light control circuit. A circuit device is housed in the first case 10 and the second case 20, and a series of fixed rib pieces 11, 21 are provided at appropriate positions on the inner wall in a vertical or horizontal direction, respectively. Is fixed by the iron core 200 (see FIG. 3), so that the transformer iron core 200 does not fluctuate in the first case 10 and the second case 20.

At the corresponding joints of the first case 10 and the second case 20, joints 12 and 22 are provided, respectively, of which a convex rib 121 and a concave groove 221 are respectively provided, and both are corresponded and combined. In addition, at least one outlet 13 and 23 are provided outside the first case 10 and the second case 20, and at least one groove 131 and 231 is provided therein. In the first embodiment shown, two concave grooves 131 and 231 are formed. One outgoing head 30 is provided, and one end of the outgoing head 30 is connected to a cable 31 to serve as a power supply circuit and a control circuit of an electric circuit device, and an outgoing end 32 is provided at the other end. And a single port 321 for connecting the circuit to the first case 10 and the second case 20, and a slight convex rib 322 provided on the outside of the outgoing end 32. Correspondingly combined in the concave grooves 131 and 231 in the middle. One more sensitive opening 14 is provided in the above-described first case 10 and a lens element 15 is coupled thereto. The lens element 15 is provided with a convex portion 151, is placed in the sensitive opening 14, and has a base at its lower end. 152 is provided to abut on the first case 10 and at the bottom thereof two combination holes 153 are provided to provide a combination of photosensitive elements such as photo-sensitive resistors and photonic crystal tubes. .

FIGS. 4 to 6 show cross-sectional states after the combination of the first case 10 and the second case 20 of the present invention in FIGS. 1 to 3 described above. Among them, there is no limitation on the combination method between the first case 10 and the second case 20, and the combination is performed by screwing, fitting, engaging, or high frequency (ultrasonic) welding. In the first embodiment shown in FIGS. 1 to 6, a high-frequency (ultrasonic) connection joining method is adopted for the joining portions 12 and 22.

In FIGS. 4 to 6 described above, when the convex rib 121 and the concave groove 221 in the joints 12 and 22 of the first case 10 and the second case 20 are combined with each other, that is, when the first case 10 is The leakage prevention gap and the path to the inside and outside of the second case 20 are extended and bent, as shown in FIGS. 4 and 5, and due to such a structure, the first case 10 and the second case 20 are formed. Moisture located outside cannot enter the inside from the joint gap between the joints 12 and 22, whereby the first case 10 and the second case 20 are prevented, moisture-proof, and leak-proof. Similarly, at the outlets 13 and 23, the waterproof gap and the path are extended and bent to prevent water, moisture and leak due to the combination between the convex rib 322 and the concave grooves 131 and 231 outside the wire outlet head 30. Achieve the effect. Further, the convex rib 322 and the concave grooves 131 and 231 are constituted by a two-layer waterproof structure, and the effect is further improved. In addition, the same method can be adopted as a combination method between the lens element 15 and the first case 10, and furthermore, by combining the base 152 to extend the entire waterproof gap and the path, prevention, moisture prevention, The effect of leakage can be achieved.

Further, FIGS. 7, 8, and 9 show a second embodiment of the waterproof case 100 of the present invention, which substantially matches the structure of the first embodiment shown in FIGS. The difference is that the elastic packing 40 is placed in the concave groove 221 of the joint portion 22 of the second case 20, so that the convex rib 121 of the joint portion 12 of the first case 10 becomes tighter and stronger at the time of joining. In addition, the waterproof gap and the path are extended (see FIG. 9), and the joining gap between the first case 10 and the second case 20 is reduced, thereby achieving good prevention, moisture prevention, and leakage prevention.

FIGS. 10, 11, and 12 show a third embodiment of the waterproof case 100 of the present invention. The first case 10 and the second case 20 have a flat light control tree light controller. A small number of fixing rib pieces 11 and 21 are provided in the first case 10 and the second case 20, respectively, for fixing the transformer core 200 (see FIG. 3). A small number of fixing holes 24 are provided in the periphery of the first case 10 and the first case 10 and the second case 20 are provided with a small number of auxiliary fixing columns 11 ′ and combination holes 24 for fixing to the ground or other flat objects. ′ Is provided to assist in the connection and fixing between the first case 10 and the second case 20, and a two-layer structure is adopted in a combination method between the convex rib 121 of the first case 10 and the concave groove 221 of the second case 20. Is adopted. 7 and 9, and a resilient packing 40 is provided in each groove 221 (see FIG. 11), as shown in FIGS. It is said to have prevention, moisture proof, and leak proof. Similarly, the same structure can be adopted for the waterproof structure between the outgoing ports 13, 23 between the first case 10 and the second case 20 and the outgoing head 30.

FIG. 13 shows a fourth embodiment of a waterproof case 100 according to the present invention, which is another embodiment of a tree light controller, in which a first case 10 and a second case 20 are respectively provided. Frames 16, 25 and outer frames 17, 26 are provided, the inner frames 16, 25 are used to house the transformer core 200 and its circuits, and the convex ribs 161 and the grooves corresponding to the inner frames 16, 25 are provided. 251 are provided, and a concave groove 171 and a convex rib 261 corresponding to the outer frames 17 and 26 are provided, whereby the first case 10 and the second case 20 are inserted into each other, and the convex rib 161 and the concave Due to the combination between the groove 251 and the concave groove 171 and the convex rib 261, the waterproof gap path between the first case 10 and the second case 20 is extended and bent, and the inner frames 16, 25 and the outer frames 17, 26 are also bent. However, it has a double prevention, moisture-proof and leak-proof function, further improving the overall leak-proof effect.

FIGS. 14 to 17 show a fifth embodiment of the waterproof case 100 according to the present invention, which is applied to a tree light controller case without a transformer core 200. Among them, the structure of the first case 10 and the second case 20 is almost the same as the structure shown in FIGS. 1 to 6, except for a slight hollow space between the first case 10 and the second case 20. After the pillars 18 and 27 are provided and butted, they are joined together by bolts 50 provided with waterproof packing 51. That is, a screwing combination method is adopted between the first case 10 and the second case 20, and some corresponding convex columns 19 and concave holes 28 are provided between the first case 10 and the second case 20. The first case 10 and the second case 20 are more securely combined. In addition, the elastic packing 40 is installed in the concave groove 221 of the second case 20 (see FIGS. 15 and 16), so that the combination between the first case 10 and the second case 20 is more robust, preventing moisture, preventing leakage, and preventing leakage. It has a function.

In addition, the first case 10 is provided with a waterproof rotary knob 60, which is provided for selection control of a function of, for example, a tree light controller, and a waterproof plug 61 is connected below the waterproof rotary knob 60, One end is provided with a fitting groove 611 ′ for connection of the waterproof rotary knob 60, and the other end is provided with a fitting part 612, the diameter of which is slightly smaller than the other end. And a fitting hole 191 ′ corresponding to the fitting hole 19 ′ provided in the first case 10, provided at one end thereof for use in fitting the fitting portion 612, and for fitting the waterproof packing 613. It is fitted between the hole 19 'and the fitting opening 1911'. In addition, the second case 20 is provided with a small number of outlets 29 and communicates with the wiring groove 291 on the rear surface, and the wiring groove 291 is a portion that is in charge of connection with an external circuit. And a slight wire opening 293 are provided. One line groove cover 62 is provided with a convex rib 621 and a lead-in opening 622 on the periphery thereof, is combined corresponding to the wiring groove 291 of the second case 20, and its connecting portion is connected by a high-frequency method. Two elastic packings 70, 70 'are respectively placed between the concave groove 291 and the wire openings 293, 622 to strengthen the combination of the wire groove cover 62 and the wiring groove 291 and have a function of preventing leakage. Also, the elastic packings 70, 70 'are provided with a few semi-holes 71, 71', which are used to introduce the conductor into the wiring groove 291 after they have been butted against each other. Achieve moisture-proof function.

[0022]

[Effect of the invention]

 The creativity of the present invention is to achieve the effect of prevention, moisture proof and leakage prevention inside the protective case of the electric circuit device with the simplest structure, so that the electric circuit device can be applied outdoors or in a humid environment. is there.

The description and the drawings relating to the waterproof case of the electric circuit device of the present invention shown in FIGS. 1 to 16 are presented for explaining the technical contents of the present invention, and It is not intended to limit the scope, but any modification or alteration of details that can be made based on the present invention shall fall within the scope of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention, which is applied to a wall light type tree light controller.

FIG. 2 is an exploded perspective view of FIG.

FIG. 3 is a bottom view of the first case in FIG. 1, showing a structure in which fixing rib pieces are used to fix an iron core of a transformer.

FIG. 4 is a sectional view of FIG.

FIG. 5 is a partially enlarged view of a portion A in FIG. 4;

6 is a partially enlarged view of a portion B in FIG.

FIG. 7 is a view showing a second embodiment of the present invention, in which a packing is provided between a first case and a second case.

FIG. 8 is a sectional view of FIG. 7;

FIG. 9 is a partially enlarged view of a portion C in FIG. 8;

FIG. 10 is a diagram of a third embodiment of the present invention, showing a state of a tabletop fixed tree light controller.

FIG. 11 is a partially enlarged view of a portion D in the third embodiment of the present invention.

FIG. 12 is an exploded perspective view of FIG.

FIG. 13 is a fourth embodiment of the present invention.

FIG. 14 is a view of a fifth embodiment of the present invention, showing a state of a tree light controller without a transformer core.

FIG. 15 is an exploded perspective view of FIG. 14 from another angle.

FIG. 16 is a sectional view of FIG.

FIG. 17 shows a structure of connection between the second case and the wire groove cover in the embodiment of FIG. 14 by waterproof packing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 100 Waterproof case 10 1st case 11 Fixed rib piece 11 'Auxiliary convex column 12 Joining part 121 Convex rib 13 Outgoing port 131 Concave groove 14 Sensitive port 15 Lens 151 Convex part 152 Base 153 Combination hole 16 Inner frame 161 Convex rib 17 Outside Frame 171 Groove 18 Hollow pillar 19 Convex pillar 19 ′ Fitting hole 191 ′ Fitting port 20 Second case 21 Fixing rib piece 22 Joining part 221 Groove 23 Outgoing port 231 Groove 24 Fixing hole 24 ′ Combination hole 25 Inner frame 251 Concave groove 26 Outer frame 261 Convex rib 27 Hollow column 28 Concave groove 29 Outgoing port 291 Wiring groove 292 Concave groove 293 Lead port 30 Outgoing head 31 Cable 32 Outgoing end 321 port 322 Convex rib 40 Elastic packing 50 Bolt 51 Waterproof packing 60 waterproof rotary knob 61 waterproof plug 611 fitting groove 612 fitting part 613 waterproof pad Packing 62 Line groove cover 621 Convex rib 622 Drawing port 70 Elastic packing 70 'Elastic packing 71 Half hole 71' Half hole

Claims (4)

[Utility model registration claims] 1. A joint part of a first case and a second case in a waterproof case of an electric circuit device, comprising a first case and a second case which correspond to each other and are combined and house the electric circuit device together inside. Is provided with a convex rib and a concave groove corresponding to the inside thereof, the waterproof gap is extended and bent, and the first case and the second case are provided with at least one outlet port. A slight concave groove is provided inside, one end of one outgoing head is connected to the electric cable, and another convex rib is provided in the other end, and is fitted inwardly into the concave groove of the outgoing port. The combination of the joint between the case and the second case and the convex rib and the concave groove at the outlet thereof has a function of preventing, moisture-proof, and leak-proofing between the first case and the second case. Waterproof case for circuit devices. 2. The waterproof case for an electric circuit device according to claim 1, wherein a fixing rib piece is provided in the first case and the second case to fix the transformer core. 3. A sensitive opening is provided in the first case,
The waterproof case for an electric circuit device according to claim 1, wherein the waterproof case is used for coupling a lens element. 4. The combination according to claim 1, wherein an elastic packing is provided in the concave groove of the joint of the second case, so that the combination between the first case and the second case is tight. Waterproof case for electric circuit equipment.