Card connection type protective cover and double power supply automatic transfer switch provided with same
A protective cover and snap-on technology, applied in the field of dual power automatic transfer switches, can solve the problems of inconvenient installation and disassembly, and achieve the effect of convenient disassembly and firm connection
Active Publication Date: 2011-09-21
ZHEJIANG TENGEN ELECTRIC
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Problems solved by technology
[0003] In order to overcome the inconvenient installation and disassembly of the existing electrical protective cover, the present invention provides a snap-in protective cover and a dual-power automatic transfer switch equipped with the protective cover. The snap-in protective cover changes the background technology The connection mode between the upper middle shell and the left and right shells is easy to install and disassemble, and the connection is firm; the dual power automatic transfer switch equipped with the protective cover is compact in structure, safe and reliable
Method used
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Embodiment Construction
[0018] The present invention will be further described below in conjunction with accompanying drawing:
[0019] Depend on figure 1 combine figure 2 , image 3 As shown, the clip-on protective cover includes an upper casing 1 and left and right side casings (2, 3). Edges 4 are symmetrically arranged on both sides of the upper casing 1, and a gap 5 is formed on the edge 4. The gap The bottom surface of 5 is on the side plate 6 of the upper casing 1, and the left and right casings (2, 3) respectively have snap-in bodies 7 corresponding to the notches 5 on the upper case 1, and the snap-in bodies The surface corresponding to the bottom surface of the gap 5 on the 7 is composed of a plane section 8 and an inclined plane section 9, and the inclined plane section 9 is at the end of the clamping body 7; the distance between the upper surface of the edge 4 and the bottom surface of the gap 5 is the same as The thickness of the plane section 8 is equal, and the length of the plane s...
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The invention relates to a card connection type protective cover and a double power supply automatic transfer switch provided with same, mainly solving the problems that the existing electric apparatuses are mounted and dismounted inconveniently. The card connection type protective cover and a double power supply automatic transfer switch provided with same are characterized in that two sides of an upper casing (1) are symmetrically provided with an edge (4) on which a gap (5) is opened; a left side casing and a right side casing (2,3) are respectively provided with a card connection body (7)corresponding to the gaps (5) on the upper casing (1); the face on the card connection body (7) corresponding to the bottom surfaces of the gaps (5) comprises a plane section (8) and an inclined surface section (9), and the inclined surface part (9) is positioned at the end part of the card connection body (7); the distance from the upper surfaces of the edges (4) to the bottom surfaces of the gaps is equal to the thickness of the plane section (8) on the card connection part (7); and the length of the plane section on the card connection body (7) is equal to the thickness of a side plate (6)of the upper casing (1). The invention has the characteristics of convenient mounting and dismounting, firm connection and the like.
Description
Technical field: [0001] The invention relates to a low-voltage electrical appliance, in particular to a low-voltage electrical appliance snap-in protective cover and a dual-power automatic transfer switch equipped with the protective cover. Background technique: [0002] At present, some low-voltage electrical appliances are equipped with protective shells, such as small circuit breakers, dual power automatic transfer switches and other protective shells. The shape of the existing dual power automatic transfer switches is not a regular geometric shape. In order to make the protective cover and the power supply The automatic transfer switch is more compact. Generally, the protective cover is made into a separate structure. The protective cover is mainly composed of the upper shell and the left and right side shells. The upper shell is generally made of transparent materials, which is convenient for observing the status of the electrical appliances. The upper shell and the lef...
Claims
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IPC IPC(8): H01H9/02H02J9/06
Inventor 葛世伟王兴利姚鹏飞陆春香
Owner ZHEJIANG TENGEN ELECTRIC