JPH0413590Y2 - - Google Patents
Info
- Publication number
- JPH0413590Y2 JPH0413590Y2 JP13683486U JP13683486U JPH0413590Y2 JP H0413590 Y2 JPH0413590 Y2 JP H0413590Y2 JP 13683486 U JP13683486 U JP 13683486U JP 13683486 U JP13683486 U JP 13683486U JP H0413590 Y2 JPH0413590 Y2 JP H0413590Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heating wire
- frame member
- groove
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010438 heat treatment Methods 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 5
- 108010053481 Antifreeze Proteins Proteins 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- BWSQKOKULIALEW-UHFFFAOYSA-N 2-[2-[4-fluoro-3-(trifluoromethyl)phenyl]-3-[2-(piperidin-3-ylamino)pyrimidin-4-yl]imidazol-4-yl]acetonitrile Chemical compound FC1=C(C=C(C=C1)C=1N(C(=CN=1)CC#N)C1=NC(=NC=C1)NC1CNCCC1)C(F)(F)F BWSQKOKULIALEW-UHFFFAOYSA-N 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は、組立式冷蔵庫の庫口部における凍
結防止用ヒータの制御装置に関する。[Detailed Description of the Invention] Industrial Application Field This invention relates to a control device for an anti-freeze heater in the opening of a prefabricated refrigerator.
従来技術とその問題点
組立式冷蔵庫の庫口周囲には、庫口部の凍結を
防止するために、発熱線が配されている。しかし
ながら、発熱線の発熱温度が高くなると、発熱線
が断線するという問題がある。また、一般に、発
熱線は、合成樹脂製の庫口枠に取り付けられてい
るので、発熱線の表面温度が高くなると、庫口枠
が劣化するという問題がある。Prior Art and Its Problems A heating wire is arranged around the opening of a prefabricated refrigerator in order to prevent the opening from freezing. However, when the heating temperature of the heating wire becomes high, there is a problem that the heating wire breaks. Furthermore, since the heating wire is generally attached to a synthetic resin storage door frame, there is a problem in that when the surface temperature of the heating wire increases, the storage door frame deteriorates.
この考案は、上記問題を解決した組立式冷蔵庫
の庫口部における凍結防止用ヒータの制御装置を
提供することを目的とする。 The object of this invention is to provide a control device for an anti-freeze heater at the entrance of a prefabricated refrigerator that solves the above-mentioned problems.
問題点を解決するための手段
この考案による組立式冷蔵庫の庫口部における
凍結防止用ヒータの制御装置は、庫口の周囲に配
された発熱線を有するヒータの制御装置であつ
て、発熱線に直列接続されたスイツチング手段、
発熱線の表面または表面付近の温度を検出する検
出手段および検出温度が第１基準温度を越えたと
きにスイツチング手段をオフし、検出温度が第２
基準温度より低下したときにスイツチング手段を
オンする制御手段を備えていることを特徴とす
る。Means for Solving the Problems The control device for the anti-freeze heater in the storage opening of a prefabricated refrigerator according to this invention is a control device for a heater having a heating wire arranged around the storage opening. switching means connected in series with
The detection means for detecting the temperature on or near the surface of the heating wire and the switching means are turned off when the detected temperature exceeds the first reference temperature, and the detected temperature is set to the second reference temperature.
It is characterized by comprising a control means for turning on the switching means when the temperature drops below a reference temperature.
実施例
第１図〜第４図において、冷蔵庫の庫口１は、
庫口用上下パネル２，３と、左右一対の側壁パネ
ル４，５とによつて形成されている。上部パネル
２および両側壁パネル４，５の上端部は、天井パ
ネル６の前端部に固定されている。下部パネル３
および両側壁パネル４，５の下端部は、床パネル
７の前端部に固定されている。上下パネル２，３
の左側部は、左側壁パネル４の右側部に連結さ
れ、上下パネル２，３の右側部は、右側壁パネル
５の左側部に連結されている。Example In FIGS. 1 to 4, the refrigerator opening 1 is
It is formed by upper and lower panels 2, 3 for the storage entrance and a pair of left and right side wall panels 4, 5. The upper ends of the upper panel 2 and both side wall panels 4 and 5 are fixed to the front end of the ceiling panel 6. lower panel 3
The lower ends of both side wall panels 4 and 5 are fixed to the front end of the floor panel 7. Upper and lower panels 2, 3
The left side of the left side wall panel 4 is connected to the right side of the left side wall panel 4, and the right side sides of the upper and lower panels 2 and 3 are connected to the left side of the right side wall panel 5.
パネル２〜５の庫口縁部には、横断面形の合
成樹脂製縁部カバー８が嵌め止められている。庫
口１には、合成樹脂製庫口枠１０が前側から嵌め
られかつ固定されている。 A synthetic resin edge cover 8 having a cross-sectional shape is fitted onto the edges of the storage openings of the panels 2 to 5. A synthetic resin storage door frame 10 is fitted into the storage door 1 from the front side and is fixed thereto.
庫口枠１０は、上部枠部材１１、下部枠部材１
２、左側枠部材１３および右側枠部材１４からな
る。各枠部材１１〜１４は、横断面略Ｌ形であ
り、庫口縁部前面に沿う幅広部１０ａと、庫口縁
部端面に沿う幅狭部１０ｂとからなる。各枠部材
１１〜１４の幅広部１０ａの前面の内周縁部（扉
受け部）には、互いにつながる前方開口溝１５が
形成されている。また、各枠部材１１〜１４の幅
広部１０ａの後面の外周縁部には、互いにつなが
る後方開口溝１６が形成されている。また、各枠
部材１１〜１４の幅狭部１０ｂのカバー８に対向
する面には、互いにつながる前側溝１７および互
いにつながる後側溝１８がそれぞれ形成されてい
る。 The storage door frame 10 includes an upper frame member 11 and a lower frame member 1.
2. Consists of a left side frame member 13 and a right side frame member 14. Each of the frame members 11 to 14 has a substantially L-shaped cross section, and is composed of a wide portion 10a along the front surface of the storage opening edge, and a narrow width portion 10b along the end surface of the storage opening edge. Front opening grooves 15 that connect to each other are formed at the inner peripheral edge (door receiving portion) of the front surface of the wide portion 10a of each of the frame members 11 to 14. Furthermore, rear opening grooves 16 that are connected to each other are formed at the outer peripheral edge of the rear surface of the wide portion 10a of each of the frame members 11 to 14. In addition, a front groove 17 that connects with each other and a rear groove 18 that connects with each other are formed on the surface of the narrow portion 10b of each frame member 11 to 14 that faces the cover 8, respectively.
下部枠部材１２の上面には滑り止め用シート１
９が取り付けられている。右側枠部材１４の前面
には、上下一対の扉支持用ヒンジ２０が取り付け
られており、このヒンジ２０に扉パネル２１が支
持されている。左側枠部材１３には、図示されて
いないが扉パネル２１をロツクするためのロツク
機構が設けられている。各枠部材１１〜１４の前
方開口溝１５には、扉受け２２が嵌め止められて
いる。 An anti-slip sheet 1 is provided on the upper surface of the lower frame member 12.
9 is attached. A pair of upper and lower door supporting hinges 20 are attached to the front surface of the right side frame member 14, and a door panel 21 is supported by these hinges 20. Although not shown, the left side frame member 13 is provided with a locking mechanism for locking the door panel 21. A door receiver 22 is fitted into the front opening groove 15 of each frame member 11-14.
扉パネル２１の後面には、扉パネル２１を閉じ
たときに扉受け２２に当接するような位置にルー
プ状のガスケツト２３が取り付けられている。 A loop-shaped gasket 23 is attached to the rear surface of the door panel 21 at a position where it comes into contact with the door receiver 22 when the door panel 21 is closed.
庫口枠１０の前方開口溝１５には、第１発熱線
３０ａ、第２発熱線３０ｂおよび両発熱線３０
ａ，３０ｂ間に接続された温度スイツチ３１から
なる第１ヒータ回路が溝１５を巡るように配され
ている。第１発熱線３０ａは、上部枠部材１１の
溝１５および右側枠部材１４の溝１５のほぼ上半
部に配されている。第２発熱線３０ｂは、右側枠
部材１４の溝１５のほぼ下半部、下部枠部材１２
の溝１５および左側枠部材１３の溝１５に配され
ている。温度スイツチ３１としては、たとえば感
温リードスイツチが用いられる。温度スイツチ３
１は、第４図に示すように、そのリード線３１
ａ，３１ｂの基端部とともに、シリコン・シーラ
３２で覆われ、さらに熱収縮チユーブ３３で覆わ
れており、右側枠部材１４の溝１５の長さ中央部
において、第１発熱線３０ａに熱収縮チユーブ３
４によつて固着されている。温度スイツチ３１の
一方のリード線３１ａは、第１発熱線３０ａにス
リーブ３５によつて接続され、他方のリード線３
１ｂは、第２発熱線３０ｂにスリーブ３６によつ
て接続されている。第１ヒータ回路は、図示しな
い電源に電源スイツチを介して接続されている。 A first heating line 30a, a second heating line 30b, and both heating lines 30 are provided in the front opening groove 15 of the storage door frame 10.
A first heater circuit consisting of a temperature switch 31 connected between a and 30b is arranged around the groove 15. The first heat generating line 30a is arranged approximately in the upper half of the groove 15 of the upper frame member 11 and the groove 15 of the right frame member 14. The second heat generating line 30b is located at approximately the lower half of the groove 15 of the right frame member 14, and the lower frame member 12.
and the groove 15 of the left side frame member 13. As the temperature switch 31, for example, a temperature-sensitive reed switch is used. temperature switch 3
1 is the lead wire 31 as shown in FIG.
a, 31b are covered with a silicone sealer 32 and a heat-shrinkable tube 33, and a heat-shrinkable tube 33 is applied to the first heating wire 30a at the center of the length of the groove 15 of the right frame member 14. tube 3
It is fixed by 4. One lead wire 31a of the temperature switch 31 is connected to the first heating wire 30a through a sleeve 35, and the other lead wire 31a is connected to the first heating wire 30a through a sleeve 35.
1b is connected to the second heating wire 30b by a sleeve 36. The first heater circuit is connected to a power source (not shown) via a power switch.
庫口枠１０の後方開口溝１６には、第１発熱線
４０ａ、第２発熱線４０ｂおよび両発熱線４０
ａ，４０ｂ間に接続された温度スイツチ４１から
なる第２ヒータ回路が溝１６を巡るように配され
ている。第１発熱線４０ａは、上部枠部材１１の
溝１６および右側枠部材１４の溝１６のほぼ上半
部に配されている。第２発熱線４０ｂは、右側枠
部材１４の溝１６のほぼ下半部、下部枠部材１２
の溝１６および左側枠部材１３の溝１６に配され
ている。温度スイツチ４１は、上記第１ヒータ回
路と同様に、右側枠部材１４の溝１６の長さ中央
部において、第１発熱線４０ａに固着されてい
る。 A first heating line 40a, a second heating line 40b, and both heating lines 40 are provided in the rear opening groove 16 of the storage door frame 10.
A second heater circuit consisting of a temperature switch 41 connected between a and 40b is arranged around the groove 16. The first heat generating line 40a is arranged approximately in the upper half of the groove 16 of the upper frame member 11 and the groove 16 of the right frame member 14. The second heat generating line 40b is located at approximately the lower half of the groove 16 of the right frame member 14, and the lower frame member 12.
and the groove 16 of the left side frame member 13. The temperature switch 41 is fixed to the first heating wire 40a at the center of the length of the groove 16 of the right frame member 14, similarly to the first heater circuit described above.
温度スイツチ３１，４１は、その感温部の温度
がたとえば50℃を越えるとオフとなり、感温部の
温度がたとえば20℃より低下するとオンとなる。
したがつて、発熱線３０ａ，３０ｂ，４０ａ，４
０ｂの発熱温度が50℃よりも高くなるのを防止で
きる。この結果、発熱線３０ａ，３０ｂ，４０
ａ，４０ｂが過熱により断線したり、枠部材１１
〜１４が発熱線３０ａ，３０ｂ，４０ａ，４０ｂ
の過熱により劣化したりするのを防止することが
できる。 The temperature switches 31, 41 are turned off when the temperature of the temperature sensing part exceeds, for example, 50°C, and are turned on when the temperature of the temperature sensing part falls below, for example, 20°C.
Therefore, the heating wires 30a, 30b, 40a, 4
It is possible to prevent the heat generation temperature of 0b from becoming higher than 50°C. As a result, the heating wires 30a, 30b, 40
a, 40b may be disconnected due to overheating, or the frame member 11
~14 are heating wires 30a, 30b, 40a, 40b
This can prevent deterioration due to overheating.
温度スイツチ３１（または４１）の発熱線３０
ａ（または４０ａ）への取付けは、次のようにし
てもよい。すなわち、第５図を参照して、まず温
度スイツチ３１の一方のリード線３１ａを第１発
熱線３０ａにスリーブ３５によつて接続し、他方
のリード線３０ｂを第２発熱線３１ｂにスリーブ
３６によつて接続する。次に、温度検出器３１を
第１発熱線３０ａの端部に接触させ、この状態
で、温度スイツチ３１、リード線３１ａ，３１
ｂ、スリーブ３５，３６、および発熱線３０ａ，
３０ｂの端部をシリコン・シーラ３７で一体的に
覆い、さらに熱収縮チユーブ３８で覆う。 Heat generating wire 30 of temperature switch 31 (or 41)
A (or 40a) may be attached as follows. That is, referring to FIG. 5, first, one lead wire 31a of the temperature switch 31 is connected to the first heating wire 30a through the sleeve 35, and the other lead wire 30b is connected to the second heating wire 31b through the sleeve 36. Rotate and connect. Next, the temperature detector 31 is brought into contact with the end of the first heating wire 30a, and in this state, the temperature switch 31, the lead wires 31a, 31
b, sleeves 35, 36, and heating wire 30a,
The ends of 30b are integrally covered with a silicone sealer 37 and further covered with a heat shrink tube 38.
庫内温度を非常に低温（たとえば−30℃）にす
る必要がある冷蔵庫では、発熱線３０ａ，３０ｂ
として大出力用のものを用いて、発熱温度を高く
する必要がある。このような場合に、上記温度ス
イツチ３１と同じ特性の温度スイツチを上記と同
様に発熱線３０ａに取り付けると、温度スイツチ
３１のオン、オフ周期が非常に短くなつてしまう
とともに、枠部材１１〜１４が劣化しやすくな
る。そこで、このような場合には、第５図に示す
ような発熱線３０ａ，３０ｂを、ネオプレン等の
耐熱ゴム３９で覆い、耐熱ゴム３９の外側に温度
スイツチ３１を取り付ければよい。 In refrigerators that require a very low internal temperature (for example -30°C), the heating wires 30a and 30b
It is necessary to use a high output type and increase the heat generation temperature. In such a case, if a temperature switch with the same characteristics as the temperature switch 31 is attached to the heating wire 30a in the same manner as above, the on/off cycle of the temperature switch 31 will become extremely short, and the frame members 11 to 14 becomes susceptible to deterioration. Therefore, in such a case, the heating wires 30a and 30b as shown in FIG. 5 may be covered with heat-resistant rubber 39 such as neoprene, and the temperature switch 31 may be attached to the outside of the heat-resistant rubber 39.
考案の効果
この考案による組立式冷蔵庫の庫部における凍
結防止用ヒータの制御装置では、発熱線の表面ま
たは表面付近の温度が第１基準温度を越えたとき
には、発熱線への電源の供給が遮断されるので、
発熱線の過熱を防止することができる。この結
果、発熱線の断線および発熱線が取付けられてい
る部材、たとえば合成樹脂製の庫口枠の劣化を防
止することができる。Effects of the invention In the control device for the anti-freeze heater in the compartment of a prefabricated refrigerator according to this invention, when the temperature at or near the surface of the heating wire exceeds the first reference temperature, the power supply to the heating wire is cut off. Because it is done,
It is possible to prevent the heating wire from overheating. As a result, it is possible to prevent disconnection of the heating wire and deterioration of the member to which the heating wire is attached, for example, the storage opening frame made of synthetic resin.
第１図は庫口部を示す斜視図、第２図は第１図
の−線に沿う断面図、第３図は第１図の−
線に沿う断面図、第４図は温度スイツチの取付
け状態を示す正面拡大図、第５図は温度スイツチ
の取付状態の他の例を示す正面拡大図、第６図は
温度スイツチの取付け状態のさらに他の例を示す
拡大横断面図である。
１……庫口、３０ａ，３０ｂ，４０ａ，４０ｂ
……発熱線、３１，４１……温度スイツチ。
Figure 1 is a perspective view showing the storage opening, Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 is a - line in Figure 1.
4 is an enlarged front view showing how the temperature switch is installed, FIG. 5 is an enlarged front view showing another example of how the temperature switch is installed, and FIG. 6 is an enlarged front view showing how the temperature switch is installed. FIG. 7 is an enlarged cross-sectional view showing still another example. 1... Storage entrance, 30a, 30b, 40a, 40b
...Heating wire, 31,41...Temperature switch.
Claims (1)
制御装置であつて、発熱線に直列接続されたスイ
ツチング手段、発熱線の表面または表面付近の温
度を検出する検出手段および検出温度が第１基準
温度を越えたときにスイツチング手段をオフし、
検出温度が第２基準温度より低下したときにスイ
ツチング手段をオンする制御手段を備えている組
立式冷蔵庫の庫口部における凍結防止用ヒータの
制御装置。 A control device for a heater having a heating wire arranged around a storage opening, the device comprising a switching means connected in series to the heating wire, a detection means for detecting a temperature on or near the surface of the heating wire, and a first detection temperature. The switching means is turned off when the reference temperature is exceeded,
A control device for an anti-freezing heater in an opening of a prefabricated refrigerator, comprising a control means for turning on a switching means when a detected temperature falls below a second reference temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13683486U JPH0413590Y2 (en) | 1986-09-05 | 1986-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13683486U JPH0413590Y2 (en) | 1986-09-05 | 1986-09-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6343078U JPS6343078U (en) | 1988-03-22 |
| JPH0413590Y2 true JPH0413590Y2 (en) | 1992-03-30 |
Family
ID=31040319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13683486U Expired JPH0413590Y2 (en) | 1986-09-05 | 1986-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413590Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112019006730T5 (en) * | 2019-01-24 | 2021-11-04 | Mitsubishi Electric Corporation | VEHICLE MOUNTED DEVICE |
-
1986
- 1986-09-05 JP JP13683486U patent/JPH0413590Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6343078U (en) | 1988-03-22 |
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