JPH0463991B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a low-temperature housing equipped with a duct for storing electrical components at the lower front of the main body.

(b) Conventional technology Publication No. 55-860 (F25D11/00) discloses that a show case for displaying products in a store has openings at predetermined positions on both left and right sides and communicates in the lateral direction. , a wiring duct that houses a power cord for supplying electrical energy from the outside, and an electrical connection terminal board that is provided within the wiring duct and relays the connection between the controller in the show case and the power cord. The structure of the show case is shown including: and a lid provided on the electrical connection terminal board part of the wiring duct to enable electrical connection of the terminal board part from outside the show case.

(c) Problems to be Solved by the Invention According to the above-mentioned conventional technology, since the bottom wall of the insulation material and the wiring duct are very close to each other, it is difficult to penetrate the insulation material from the space surrounded by the insulation material. Therefore, the electrical wiring extending outside, that is, below the bottom wall, would not only have to be routed through the back of the wiring duct, but also the piping work to the evaporator would have to be done in the same way. Wiring and piping work must be carried out by the installer in an awkward bent position, and the work of connecting the drain pipe to the drain outlet is done with the help of the installer's vision, as the wiring duct gets in the way. A problem arose.

(d) Means for solving the problems In order to solve the above problems, the present invention provides a method for solving the problems described above.
A is a heat insulating wall 3 equipped with a drainage socket 28, a piping guide tube 29, and a wiring guide tube 30 that penetrate the bottom wall.
A pair of left and right metal legs 15 and 16 are fixed to the left and right edges of the bottom wall 3A of the heat insulating wall, and an oblong metal leg whose ends are fixed to the legs and which accommodates the electrical terminal board 19. The duct 17 is provided with a space 18 formed between the bottom wall 3A and the duct 17 and located below the drain socket 28, the piping guide tube 29, and the wiring guide tube 30. The structure is such that it can be performed from the space 18.

(e) Function According to the embodiment, the duct 17 is fixed at both ends to the left and right pair of legs 15 and 16 that support the heat insulating wall 3, and in addition to its original function of housing the electrical terminal board 19 and the electrical wiring 33, the duct 17 is , 16, the strength of both legs 15, 16 can be improved and deformation in the left and right direction can be avoided. The space 18 formed in the insulating wall 3 is a work space for piping to the cooler 9 disposed within the heat insulating wall 3, a work space for wiring to the blower fan 11, a work space for connecting the drain pipe 31 to the drain socket 28, etc., for piping and wiring. Since it acts as a construction space for work, various piping and wiring work for communicating the inside of the heat insulating wall 3 with the outside can be performed at the lower part of the entire surface of the main body.

(F) Embodiments Below, embodiments of the present invention will be described based on the drawings. 1 is a low-temperature case whose main body is composed of a heat insulating wall 3 having an opening 2 for storing and taking out products in the front; By arranging the partition plate 4 at an appropriate distance from the inner wall of the wall 3, a storage room 8 is provided with a product shelf 5, a mirror 6, and a fluorescent lamp 7, a plate fin type cooler 9, and a fan case 10. A cold air passage 12 is provided with an axial blower fan 11 supported by a cooling air passage 12 , and outlet and suction ports 13 and 14 are formed opposite to each other along both upper and lower edges of the opening 2 . By forcing the heat-exchanged cold air to circulate as shown by the arrow in FIG. 5 using the blower fan 11, a cold air curtain AC is formed in the opening 2 to cool the storage chamber 8.

Numerals 15 and 16 are U-shaped legs made of metal frames, the upper ends of which are fixed to both left and right edges of the bottom wall 3A of the electric heating wall 3, and receive the load of the heat insulating wall 3 constituting the main body. Reference numeral 17 denotes a metal U-shaped duct called a raceway for storing electrical components, and its both ends are fixed to the mid-parts of the entire surface of the legs 15 and 16, so that it extends along the longitudinal direction of the lower front surface of the main body. A space 18 is formed between the tube and the bottom wall 3A. This duct 17 is provided with an electrical terminal board 19 for connecting electrical components such as the blower fan 11 and fluorescent lamp 7 disposed inside the heat insulating wall 3 to an external power source, and on one side thereof A through hole 20 for guiding electrical wiring is formed. Further, a suitable number of hanging pieces 21 are provided on the lower wall of the duct 17, and a kick plate 22 that comes into contact with these hanging pieces is attached below the duct 17. 23 is a removable cover plate that covers the entire surface of the duct 17 and the space 18, and its upper end is connected to the bottom wall 3A.
Or a front plate 2 provided on the front of the main body as shown in the figure.
4 with a screw 25, and the lower end is secured with a screw 26 to the hanging piece 21. An opening (not shown) for taking out a water sprinkler pipe, which will be described later, is formed in a suitable position of the cover plate 23 facing the space 18, and this opening is closed so that it can be opened and closed, and when the door is opened, it is indicated by the dashed line in FIG. A small door 27 that rotates rearward is provided.

28 is a drain socket, 29 is a pipe guide tube, 30
is a wiring guide tube, and all of these parts are made of heat insulating material such as rubber or resin, and are connected to the heat insulating wall 3.
It is provided to penetrate the bottom wall 3A of the space 18, and is located directly above the space 18 or in the vicinity thereof. The drain socket 28 is for discharging dew water flowing from the cooler 9 during defrosting operation to the outside, and a drain pipe 31 is connected to the portion exposed to the space 18 as shown in FIG. The pipe guide tube 29 is for guiding a pipe 32 connecting the cooler 9 and an externally installed type refrigeration system, and the wiring guide pipe 30 is for connecting the blower fan 11, fluorescent lamp 7, and electrical terminals. This is for guiding the electrical wiring 33 connecting to the plate 19. Reference numeral 34 denotes a winding and automatic return type hose reel constituting the watering device, which is attached to the bottom wall 3A by means of a hanging device 35.
is suspended from. A flexible vinyl hose 36 is wound around the hose reel 34, and a water sprinkler pipe 37 placed on the duct 17 and located in the space 18 is attached to the tip of the vinyl hose. This water pipe 37 is connected to the small door 2 of the cover plate 23.
By opening 7', it is drawn out from the space 18. Note that 38 is a hose support provided on the back wall of the duct 17 to prevent the vinyl hose 36 from bending.

According to such a configuration, the duct 17 is fixed at both ends to the left and right integral legs 15 and 16 that can support the heat insulating wall 3, and in addition to its original function of housing the electrical terminal board 19 and the electrical wiring 33, the duct 17 is 16, the strength of both legs 15 and 16 can be improved and deformation in the left and right direction can be avoided, and
The space 18 formed between the duct 17 and the bottom wall 3A of the heat insulating wall 3 is a work space for piping to the cooler 9 disposed within the heat insulating wall 3, a work space for wiring to the ventilation fan 11, and a drainage socket. Drain pipe 31 to 28
Since it acts as a construction space for piping and wiring work such as a connection work space, various piping and wiring work for communicating the inside of the heat insulating wall 3 with the outside can be performed at the lower part of the entire surface of the main body.

Therefore, while the builder is performing piping and wiring work in the space 18, this work can be visually observed through the space 18, making the piping and wiring work more efficient.
8 and the drain pipe 31, the airtightness of the connected portion can be checked through the space 18 after the connection, and inspection work can be easily performed.

(g) Effects of the invention According to the present invention described above, the effects listed below are produced.

Since both ends of the duct for storing electrical components are fixed to the pair of left and right legs that support the insulation wall, the duct itself acts as a connecting member for both legs, and as a result, the strength of both legs can be improved, and the legs can be moved in the left and right direction. deformation can be avoided.

It is extremely efficient because the installer can visually inspect the drainage socket, piping guide, etc., piping to the wiring guide pipe, wiring work, and the status of this work through the space formed between the bottom wall of the insulation wall and the duct. In addition to making it possible to carry out various tasks, it also makes it easier to inspect piping and wiring after wiring.

[Brief explanation of drawings]

The drawings all show embodiments of the low-temperature show case of the present invention, and Fig. 1 is a sectional view taken along the line A-A in Fig. 2, Fig. 2 is a front view of main parts, Fig. 3 is an enlarged right front view, and Fig. 4 is a front view. The left enlarged view and FIG. 5 are overall longitudinal sectional side views. 3A... Bottom wall, 15, 16... Legs, 17... Duct, 18... Space, 19... Electrical terminal board, 28
...Drain socket, 29...Piping guide tube, 30...
...Wiring guide tube.

Claims (1)

[Claims] 1. An insulating wall equipped with a drainage socket, a piping guide tube, and a wiring guide tube that penetrate the bottom wall, and a pair of left and right metal legs fixed to the left and right edges of the bottom wall of the insulating wall. Then, both ends were attached to these legs,
A low-temperature case comprising a horizontally long metal duct for storing an electrical terminal board, and a space formed between the bottom wall and the duct and located below the drain socket, piping guide tube, and wiring guide tube. .