CN2490789Y - Waterproof housing for circuit devices - Google Patents

Abstract

The utility model relates to a waterproof housing for a circuit device. It comprises a first housing and a second housing which can be combined correspondingly, and the circuit device is accommodated inside together. The edge parts where the two housings are combined are each provided with a joint part, and the two corresponding joint parts are respectively provided with a convex rib and a groove. The two housings are provided with at least one outlet port on the outside and at least one groove inside. An outlet head has one end connected to an electrical cable externally and the other end provided with an embedded part, and a plurality of convex ribs are provided on the outside to buckle inwardly correspondingly into the groove of the outlet port. By combining the convex ribs and the groove, the inside of the two housings can achieve the effects of waterproofing, moisture-proofing and leak-proofing.

Description

Waterproof housing for circuit devices

The utility model relates to a casing, in particular to a waterproof casing of a waterproof, moisture-proof and leak-proof circuit device.

Electrical circuit devices are widely used in various appliances, equipment control, sensing, power conversion supply, communication, etc., for example: traditional lamps or light string controllers, light controllers and other electronic or electrical circuits, are provided The functions of power conversion, control and sensing control, however, contain many sophisticated electronic components and electrical components in these electronic or electrical circuits, such as transformers, integrated circuit ICs in circuit boards PCB, rectifiers, transistors, light sensors Electronic or electrical components such as test components are used to enable the circuit device to generate the above-mentioned power conversion, light string control or automatic lighting control functions of light strings and lamps, so it is necessary to properly protect these important components. However, traditionally, the protection methods for electronic and electrical circuit devices, in addition to the circuit break protection for voltage and current, are usually covered with insulating shells such as transformers, circuit boards, PCBs, or optical sensing components. Electrical components, so that they are not affected by the external environment and directly damaged, but because the use of the electrical circuit device requires the installation of control equipment, it is not necessarily limited to use indoors or in a dry environment, such as a large Christmas Light strings, lamp seas, and light trees must be installed outdoors. Therefore, electrical circuit devices such as light string controllers or day and night automatic light controllers must be installed outdoors with light strings or lamps. However, the combination of the external cladding shells usually adopts the method of direct high-frequency (ultrasonic) heating connection, locking or buckling, so there is a large leakage gap at the joint between the shells. , and it is easy to cause the precision electronic and electrical parts inside to be damaged by moisture or short-circuit damage caused by water seepage after long-term use.

In addition, there is also a widely used method of waterproofing the outer casing of the circuit device, which is to directly cover some important parts with hot melt adhesive or directly fill the whole body with epoxy resin, so that the entire electrical circuit device is completely protected. Curing and encapsulating in the shell is a relatively passive waterproof and moisture-proof method, that is, allowing water seepage or moisture inside the shell, but due to the insulation and waterproof function of hot melt adhesive or epoxy resin, important electronic and electrical components can be protected. protected. The waterproof structure filled with hot melt adhesive or epoxy resin in the shell will cause problems and shortcomings of time-consuming and manpower consumption in the actual manufacturing process of the electrical circuit device, which will increase the cost of the product for no reason, and make the The weight of the whole product increases sharply, making the product bulky and unfavorable for outdoor installation; moreover, during the processing, the temperature or chemical properties of hot melt adhesive and epoxy resin are not suitable for some advanced electronic and electrical parts , such as integrated circuits (IC) or transistors, are likely to be damaged and failed due to the temperature or dosage uncontrollable during pouring, which relatively increases the difficulty of manufacturing their products. Also, in the above-mentioned waterproof method of pouring hot melt adhesive or epoxy resin inside the casing, another problem is that the electrical circuit device, such as the light string controller or the light controller, is malfunctioning in use or the main electronic Or when the electrical components are damaged, it is impossible to test and repair or replace the components or circuits in the circuit. As a result, once the electrical circuit device is slightly faulty or damaged, it cannot be repaired, and it must be purchased and replaced with a new one. The electrical circuit device not only increases the cost of the equipment used but also causes troubles in use. Moreover, a large number of electrical circuit devices with plastic shells and containing high-pollution and difficult-to-decompose substances such as hot-melt adhesives or epoxy resins are discarded, which will cause more problems. Serious and irreparable global environmental pollution problems.

The main purpose of this utility model is to provide a waterproof housing for circuit devices, especially the joints between the housings are provided with corresponding joint grooves and convex ribs, so that the leak-proof gap is zigzag and lengthened, so as to achieve Internal leak-proof, moisture-proof and waterproof effect.

The second purpose of the present utility model is to provide a waterproof casing of a circuit device, without pouring hot melt adhesive or epoxy resin inside the casing, so that the inside of the casing can be actively leak-proof, moisture-proof and waterproof. Function.

The third purpose of the present utility model is to provide a waterproof housing for circuit devices. When the electronic and electrical components or circuits in the housing are damaged, the housing can be disassembled for repair, which can save equipment costs and eliminate The problem of environmental pollution caused by a large number of discarded plastic shells.

The purpose of this utility model is to adopt the following technical scheme to realize:

A waterproof housing for a circuit device, characterized in that it includes: a first housing and a second housing, the first housing and the second housing are correspondingly combined into a housing, and a joint is provided at the joint, There is a rib and a groove inside, which are connected and combined correspondingly. The circuit device is arranged in the casing, and at least one outlet is provided on the first casing and the second casing, and several grooves are arranged inside; a wire outlet , one end is connected to the cable, and the other end is provided with several convex ribs to be embedded in the grooves on the outlet.

The utility model can also adopt the following measures:

The first housing and the second housing are provided with fixing ribs for fixing the transformer core.

The first casing is provided with a sensing port for combining with a lens assembly.

An elastic gasket is provided in the groove of the joint part of the second housing to make the combination between the first housing and the second housing more tightly.

The utility model has following drawings:

Fig. 1 is a three-dimensional appearance structure diagram showing the state of the light string controller applied to the wall plug-in type in the first embodiment of the present invention;

Fig. 2 is a three-dimensional exploded structural diagram of Fig. 1;

Fig. 3 is the bottom view of the first casing showing the fixing ribs for the fixed structure of the transformer core in Fig. 1;

Fig. 4 is the sectional view of Fig. 1;

Fig. 5 is a partial enlarged view marked as part A in Fig. 4;

Fig. 6 is a partial enlarged view marked as part B in Fig. 4;

Fig. 7 is a diagram of the second embodiment of the utility model showing the state of adding a gasket between the first housing and the second housing;

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

Fig. 9 is a partial enlarged view of part C marked in Fig. 8;

Fig. 10 is a diagram of the third embodiment of the utility model showing the state applied to the desktop fixed light string controller;

Fig. 11 is a partial enlarged view of part marked D in the third embodiment of Fig. 10;

Fig. 12 is a three-dimensional exploded structural view of Fig. 10;

Fig. 13 is the fourth embodiment figure of the utility model;

Fig. 14 is a diagram of the fifth embodiment of the utility model showing the state applied to the light string controller without a transformer core;

Fig. 15 is a three-dimensional exploded structural view of another angle of Fig. 14;

Fig. 16 is a sectional view of Fig. 14;

FIG. 17 is a partial view showing the connection between the second housing and the trunk cover in the embodiment of FIG. 14 with a waterproof gasket structure.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail:

First please refer to Fig. 1, Fig. 2 and Fig. 3, the waterproof case of the circuit device of the present invention, hereinafter referred to as the waterproof case, is marked with 100 in each relevant figure below, wherein the waterproof The casing 100 includes the first casing 10 and the second casing 20, which are two correspondingly combined casings, and its shape is not limited. The embodiments shown in Fig. 1 to Fig. 6 are capable of accommodating light The control plug type light string control circuit is used as an example for its description. The first housing 10 and the second housing 20 can accommodate their circuit devices together, and at appropriate positions in the vertical or horizontal direction of the inner wall, respectively There are several series of fixing ribs 11 and 21 for a transformer core 200 to be fixed and accommodated (as shown in FIG. 3 ), so that the transformer core 200 will not shake in the first casing 10 and the second casing 20 .

In addition, along the corresponding joints of the first housing 10 and the second housing 20, a joint portion 12 and 22 are respectively provided, wherein a convex rib 121 and a groove 221 are respectively provided, so that the two can be combined correspondingly, and At least one outlet 13 and 23 are provided on the outside of the first housing 10 and the second housing 20, and at least one groove 131 and 231 is provided inside it. In the first embodiment shown in FIGS. 1-6 , there are two The pattern of two grooves 131, 231; And, one outlet head 30, one end connects a cable 31, and it is the power circuit of circuit device, control circuit, and the other end is provided with an outlet terminal 32, has a mouth 321, with The wires are connected to the first housing 10 and the second housing 20, and several ribs 322 are provided outside the wire outlet 32 to correspond to the grooves 131 and 231 in. The above-mentioned first housing 10 is also provided with a sensing port 14, which is combined with a lens assembly 15. The lens assembly 15 has a convex portion 151 to be inserted into the sensing port 14, and a base portion 152 is provided at its lower end (as shown in FIG. 6 As shown), it can be flatly attached to the first housing 10, and its bottom is provided with two combination holes 153, which can be used for combination of photosensitive components, such as photoresistors and phototransistors.

Please refer to Fig. 4-Fig. 6 again, which is the combined sectional state of the first casing 10 and the second casing 20 of the present invention shown in Fig. 1-Fig. 3 above, wherein the first casing The combination between 10 and the second housing 20 is not limited, it can be screw-lock engagement, fitting, fastening or high-frequency (ultrasonic) connection combination. The first embodiment shown in Fig. 1-Fig. 6 is in A high-frequency (ultrasonic wave) connection and joint method is applied to the joints 12 and 22 .

4-6 above, when the ribs 121 and the grooves 221 in the joint parts 12 and 22 of the first housing 10 and the second housing 20 are combined with each other, the first housing 10 and the second housing 10 The leak-proof gap and the path increase and twists and turns from the outside to the inside of the second housing 20 can be clearly seen in Figures 4 and 5, that is, by such a structure, the first housing 10 and the second housing 20 outside the moisture can not penetrate into its interior through the joints 12 and 22 joints, and to achieve the first shell 10 and the second shell 20 leak-proof, moisture-proof and waterproof effects; similarly, at the outlet The positions of 13 and 23 are also achieved by the combination of the convex rib 322 and the groove 131 and 231 on the outside of the outlet head 30 to achieve the effects of leak-proof, moisture-proof and waterproof that make the waterproof gap and path increase and twist. The rib 322 and the grooves 131 and 231 are made of a double-layer waterproof structure, which can make the effect better; in addition, the combination mode between the lens assembly 15 and the first housing 10 is also adopted in a similar manner. As shown in FIG. 4 and FIG. 6 , the combination of the convex portion 151 and the sensing port 14 and the base portion 152 to extend the entire waterproof gap and path can also achieve leakproof, moistureproof and waterproof effects.

Please refer to Fig. 7, Fig. 8 and Fig. 9, which is the second embodiment of the waterproof casing 100 of the present invention. Its general structure is the same as that of the first embodiment shown in Fig. 1-Fig. 6, and its The difference is that an elastic gasket 40 is placed in the groove 221 of the joint part 22 of the second housing 20, so that the rib 121 of the joint part 12 of the first housing 10 is more tightly and firmly engaged. And further increase the waterproof gap and path (as shown in FIG. 9 ), and reduce the joint gap between the first casing 10 and the second casing 20, so that the effects of leakproof, moistureproof and waterproof are better.

Please refer again to Fig. 10, Fig. 11 and Fig. 12, which are the third embodiment diagram of the waterproof case 10 of the present utility model, among which, it discloses the types of the first case 10 and the second case 20 It is a flat light-controlled light string controller, and the first housing 10 and the second housing 20 are respectively provided with fixing ribs 11 and 21 for fixing the transformer core 200 (please refer to FIG. 3 ) , and the periphery of the second housing 20 is provided with several fixing holes 24, which can be fixed on the ground or other planar objects, and several auxiliary fixing holes are provided on the first housing 10 and the second housing 20 respectively. The column 11' and the combination hole 24' are used to assist the combination and fixation between the first housing 10 and the second housing 20, and the combination between the rib 121 of the first housing 10 and the groove 221 of the second housing 20 The way is to adopt a double-layer structure, that is, a pair of convex ribs 121 and grooves 221 are respectively provided, and it is the same as in Figure 7-Figure 9, and elastic gaskets 40 are added in each groove 221 (as shown in Fig. 11), so that it has a better double-layer leak-proof, moisture-proof and waterproof effect; similarly, the wire outlets 13 and 23 between the first housing 10 and the second housing 20 and the wire outlet 30 The waterproof structure can also take the same structure.

Please refer to Figure 13, which is the fourth embodiment of the utility model waterproof housing 100, which is another type of structure of the light string controller, wherein the first housing 10 and the second housing 20 is respectively provided with an inner frame 16, 25 and outer frames 17 and 26, the inner frames 16 and 25 are used to accommodate and fix the transformer core 200 and its circuit, and corresponding convex ribs are respectively provided on the inner frames 16, 25 161 and groove 251, and the outer frames 17 and 26 are provided with corresponding grooves 171 and ribs 261, so that the first housing 10 and the second housing 20 can be nested together, and through the ribs 161, the combination of the groove 251, the groove 171, and the convex rib 261 makes the waterproof gap path between the first casing 10 and the second casing 20 increase and twist, and at the same time, the inner frame 16, 25 and the outer frame 17 and 26 have brought into play double leak-proof, moisture-proof and water-proof effects, and the overall leak-proof effect is further improved.

Please refer to Figures 14-17, which are the fifth embodiment of the waterproof housing 100 of the present invention, which is applied to the case of the light string controller housing without the transformer core 200, wherein the first housing The general structure of the body 10 and the second housing 20 is the same as that shown in Fig. 1-Fig. After the anastomosis, a waterproof gasket 51 is nested by the bolt 50 to be screw-locked and fixedly combined, that is, the first casing 10 and the second casing 20 are combined in a locked combination, and the first casing 10 and the second housing 20 are provided with several corresponding protrusions 19 and concave holes 28, which can make the first housing 10 and the second housing 20 more stable combination. An elastic gasket 40 is also accommodated in the groove 221 (as shown in FIGS. 15 and 16 ), which makes the combination between the first housing 10 and the second housing 20 more firm and has the effects of leak-proof, moisture-proof and waterproof.

In addition, in the first housing 10, there is a waterproof rotary knob 60, the waterproof rotary knob 60 can be used as a light string controller to select and control the function, and a waterproof plug 61 is connected below it, and one end is provided There is an embedding groove 611 for the connection of the waterproof rotary knob 60, and the other end is provided with an embedding portion 612 whose diameter is slightly smaller than the other end, and a waterproof gasket 613 is provided outside the embedding portion 612, and, on the first housing 10 There is an embedded hole 19' corresponding to it, and one end is provided with an embedded hole 191' for the embedded part 612 to be embedded and fixed, and the waterproof gasket 613 is embedded and fixed between the embedded hole 19' and the embedded hole 191'; Moreover, several wire outlets 29 are provided on the second housing 20 to communicate with a wiring groove 291 on the back side. A wire slot cover 62 is provided with a rib 621 and a wire slot 622 on its periphery, which can be combined with a cover corresponding to the wire slot 291 of the second housing 20, and its connection is a high frequency In addition, two elastic gaskets 70 and 70' are respectively placed between the groove 291 and the lead-in port 293 and 622 to make the combination between the wire slot cover 62 and the wire slot 291 more stable and preventive. Leakage function, at the same time, the elastic gaskets 70 and 70' are provided with several half holes 71 and 71', after being matched with each other, the wires can be inserted into the junction groove 291 to lead, so that the wires can be leak-proof, moisture-proof and waterproof effect.

The advantages and positive effects of the utility model are that the most simple and convenient structure is used to achieve the effects of leak-proof, moisture-proof and waterproof inside the protective housing of the circuit device, so that the circuit device can be used in outdoor or humid environments middle.

Claims (4)

1. the waterproof case of a circuit arrangement, it is characterized in that, comprise: first housing and second housing, this first housing, the second housing correspondence are combined into housing, and its junction is respectively equipped with a joint portion, in be provided with a fin and groove, can correspondingly mutually connect combination, in this housing circuit arrangement is set, and is provided with a line outlet at least on first housing and second housing, its inside is provided with several grooves; One terminal, an end connection cable, the other end then is provided with several fins, to be embedded at the groove on the line outlet.

2. the waterproof case of circuit arrangement according to claim 1 is characterized in that, is provided with the fixedly fin for the stationary transformer iron core in described first housing and second housing.

3. the waterproof case of circuit arrangement according to claim 1 is characterized in that, described first housing is provided with for the induction mouth in conjunction with a lens assembly.

4. the waterproof case of circuit arrangement according to claim 1 is characterized in that, is provided with in the groove of the joint portion of described second housing to make to make up elastomeric pad more closely between first housing and second housing.

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