JPH0733954B2 - Low temperature showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to an improvement in a mounting structure of a temperature control device for a low temperature showcase.

2. Description of the Related Art As a temperature control device for a low temperature showcase, there is, for example, Japanese Patent Publication No. 61-57546, in which a thermostat body (11) is attached to a reflector (16) ( A temperature control device is provided which can set the set temperature T _S to an arbitrary value by operating the setting knob by projecting the temperature setting knob (12) provided on the portion (which reflects light) to the outside. The low temperature showcase is disclosed. In most cases, this controller is not installed at the time of product shipment, and a construction company installs this commercially available controller when installing the showcase.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above-mentioned related art, since the temperature setting knob is configured to protrude from the reflector, anyone can touch the knob at any time such as when cleaning the showcase. , Even if a hand or an object accidentally touches this temperature setting knob, the setting state of the knob may change, and the set value may move, and the desired value set with care may change without realizing, Sometimes, the random value is set, and the desired temperature control cannot be performed, so that the freshness of the in-compartment product is inappropriately maintained, and the quality of the product deteriorates quickly.

In addition, since the contractor installs this commercially available controller when installing the showcase, it may not be possible to install it in an appropriate place depending on the type of controller selected, or the control characteristics of the showcase There were times when I couldn't fully demonstrate it. Further, even in a showcase where a space for installing the controller is secured in advance, the temperature setting knob protrudes from the hole and is arranged close to the fluorescent lamp. Therefore, heat is dissipated from the fluorescent lamp to reflect the light. The heat stayed downward and the temperature setting knob became hot, and there was a problem that the knob could not be touched during the lighting of the fluorescent lamp and fine adjustment could not be performed.

Therefore, the present invention makes it impossible to touch the temperature setting knob during normal use such as cleaning when it is not desired to change the set value by the temperature setting knob in the temperature control device, and the temperature setting knob protrudes from the reflector. The task is to eliminate.

[Means for Solving the Problems] A low temperature showcase of the present invention includes an opening for loading and unloading products on the front surface, a lighting device for illuminating inside a room at the upper front part, and a lighting device positioned above the lighting device. Each is equipped with a reflector that reflects light, and has a controller that is fixed on the reflector to control the temperature inside the refrigerator. A temperature setting section for setting a desired temperature, and an operation surface arranged so as to be located above the mounting surface of the leg member, and the reflecting section has an opening for operating the temperature setting section, A lid is attached to this opening so as to be openable and closable.

Action The temperature control knob of the controller does not protrude from the opening of the reflection part, and it is impossible for the user to touch the temperature control knob unless the lid is removed. It can be prevented. Also, even if heat stays below the reflection part due to heat dissipation from the fluorescent lamp, the thermal effect is not directly transmitted to the temperature control knob, so the knob itself does not become hot, and even during lighting of the fluorescent lamp. It becomes easy to adjust the knob.

Embodiments Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.

Reference numeral 1 is an open-type low-temperature showcase whose main body is composed of a heat insulating wall 2 having an opening 3 for storing and taking out goods on the front surface. The heat insulating wall 2 includes a top wall, a front wall, a back wall, and a bottom wall. A cold air flow path 9 in which a partition plate 5 and a detachable bottom plate 6 are arranged at appropriate intervals from the inner surfaces of the above, and cooling means such as a plate fin type cooler 7 and a blower 8 are installed, and a front opening 3 The outlet 10 and the inlet 11 are formed opposite to each other at the upper and lower ends of the container, and a storage chamber 14 having a plurality of shelves 13 supported by a plurality of columns 12 is formed and cooled by a cooler 7. The cool air is circulated by the blower 8 to supply the cool air to the inside of the storage (storage room 14), and an air curtain is formed at the opening, that is, the portion from the air outlet 10 to the air inlet 11 to display it on the shelf 13. It keeps the product cold by cooling it.
In addition, in order to enhance the effect of displaying products in the store, a light source 15 as a lighting device such as a fluorescent lamp is provided near each shelf 13 and the outlet 10.
Is provided.

And in order to control the operating rate of the cooling means, in general,
Controller 21 for temperature control with thermostat 20
This controller 21 is mounted on a reflector 22 as a reflecting portion which is provided above the light source 15 and which is arranged to reflect light downward, and the temperature detecting portion of the thermostat 20 is provided. It is arranged in the cold air passage 9. A decorative panel 23 is arranged in front of the reflector 22. In addition, the controller 21 includes a main body 25, a temperature adjusting knob 26 formed on one surface of the main body as a temperature setting unit for setting the on / off temperature of the thermostat 20, and a light source.
A night setback that has a so-called night setback mechanism that automatically raises and lowers the set temperature according to the turning on and off of 15 and determines the temperature range for automatically raising the set value from the set temperature when the light source is off. Operation surface 27 provided with an operation section 24 for the operation, and a temperature control knob 26 extending downward from the main body
And a leg member 28 provided so as to project further than the leg member 28. The operating rate is the ratio of the operating time of the cooling means to the total operating time. (I) If the set temperature is lowered, the operating rate rises and the in-compartment temperature decreases, and the products in the refrigerator cool well,
(Ii) Conversely, if the set temperature is increased, the operating rate will decrease, the temperature inside the warehouse will be higher than before, and the temperature of the goods will rise slightly (this includes the case of shifting to night setback operation). ).

In addition, the portion of the reflector 22 on which the controller 21 is mounted corresponds to the temperature control knob 26, and has a diameter larger than the distance between the temperature setting knob 26 and the outer ends of the operating portion 24 (more specifically, a finger An opening 29 for adjusting the knob is formed, and a lid 30 made of a transparent resin is attached to the opening 29 so as to be openable and closable. The opening 29 prevents fingers and other objects from entering, and the controller 30 is visible through the lid 30 through the opening 29.

According to the above configuration, since the temperature control knob 26 of the controller 21 does not project from the opening 29 of the reflector 22, it is not necessary to change the set temperature by the temperature control knob 26 such as during cleaning. The knob 26 is prevented from being accidentally touched, the set temperature is prevented from changing from the desired value without knowing, and the desired inside temperature can be obtained. In addition, the opening 29 of the reflector 22 has a lid 30.
Since it is closed in an openable and closable state by the means, there is no risk of fingers entering inside through the opening 29, and the controller, especially the temperature control knob 26, can be seen from the outside through the lid 30. Therefore, the set temperature is not changed by mischief or the like, and it is possible to stably maintain the freshness control and the product temperature of the in-compartment product. Further, it is not necessary to attach a commercially available controller at the showcase installation site, and the control characteristics of the showcase can be fully exhibited. In addition, the distance between the fluorescent lamp and the temperature setting knob is long, and there is little influence of the radiant heat of the fluorescent lamp and the accumulated heat staying below the reflector, and the knob itself does not become hot and the knob can be operated safely even when the fluorescent lamp is on. It can be performed.

[Effects of the Invention] As described in detail above, according to the present invention, since the temperature setting portion does not protrude beyond the reflection portion (specifically, the opening), it is desirable to change the installation temperature during cleaning of the upper portion of the showcase. During normal use, the temperature setting section is prevented from being accidentally touched, and the set temperature is prevented from changing from the desired value without knowing, and the desired inside temperature can be obtained. Also, since the opening of the reflection part is closed by the lid, it is impossible to touch the temperature setting part from the outside during normal use, and it is possible to prevent the set temperature from being changed by mischief, etc. It is possible to control the freshness of the in-house products and maintain the temperature of the products stably. Further, since the distance between the lighting device and the temperature setting part becomes longer and the opening is closed by the lid, the thermal influence of the radiant heat from the lighting device and the accumulated heat staying below the reflection part on the temperature setting part. Therefore, the temperature adjustment operation can be sufficiently performed even while the lighting device is turned on.

[Brief description of drawings]

Each drawing shows one embodiment of the present invention, FIG. 1 is a sectional view showing the relationship between a controller and a reflecting portion, FIG. 2 is a partially cutaway perspective view of an open type low temperature showcase, and FIG. Longitudinal sectional view of the low temperature showcase, Fig. 4 is an enlarged view of part A of Fig. 2,
FIG. 5 is a perspective view of the controller. 1 ... Low temperature showcase, 3 ... Front opening, 15 ... Light source (illumination device), 21 ... Controller, 22 ... Reflector (reflection part), 26 ... Temperature control knob (temperature setting part), 27
…… Operating surface, 28 …… Legs, 29 …… Opening, 30 …… Lid.

Claims (1)

[Claims] 1. An open-type low-temperature device having a front opening for loading and unloading goods, a lighting device for illuminating the inside of a warehouse in the upper part of the front face, and a reflecting portion located above the lighting device and reflecting light from the lighting device. In the showcase, the controller has a controller that is fixed on the reflection unit to control the temperature inside the refrigerator, and the controller includes a leg member to be attached to the reflection unit and a temperature that sets the temperature inside the chamber to a desired temperature. An operating surface arranged so that the setting portion is located above a mounting surface of the leg member, and the reflecting portion has an opening for operating the temperature setting portion, and the opening and closing is provided in the opening. A low-temperature showcase with a lid that can be attached freely.