Temperature control device for power transmission and distribution transformer
The temperature control device for transformers uses sensors and heat-blocking/reflective members to dynamically manage transformer temperatures, addressing inefficiencies in existing cooling systems by blocking or reflecting heat as needed, thus enhancing efficiency and reducing energy loss.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- TAEHWAENG CO LTD
- Filing Date
- 2025-02-05
- Publication Date
- 2026-07-23
AI Technical Summary
Existing cooling devices for molded transformers suffer from poor cooling efficiency and excessive energy loss due to uniform cooling of the entire casing, failing to account for varying heat generation patterns across different coil assemblies, and existing technologies do not adequately address these issues.
A temperature control device equipped with internal and external temperature sensors, a temperature blocking member using heat-blocking materials, and a temperature transfer member using reflective materials, controlled by a unit to manage transformer temperatures dynamically, blocking or reflecting heat as needed.
Effectively manages transformer temperatures by preventing overheating or cooling inefficiencies, ensuring efficient operation and reducing energy loss through targeted heat management.
Smart Images
Figure KR2025001692_23072026_PF_FP_ABST
Abstract
Description
Transmission and distribution transformer temperature control device
[0001] The present invention relates to a temperature control device, and more specifically, to a device for controlling the temperature of a transformer among a utility pole, a transformer, and a line configured for power transmission and distribution.
[0002] First, if we look at the prior art,
[0003] Electricity produced at power plants passes through ultra-high voltage transmission lines and substations of several hundred kV, and is supplied to consumers after being stepped down to the required voltage (220 V or 380 V) at pole-mounted transformers installed on 229 kV overhead lines. As such, transformers are devices that raise or lower AC voltage according to purpose and are very important in the power system.
[0004]
[0005] A transformer consists of a core that forms a magnetic circuit and primary and secondary coils that are wound concentrically on the core and form an electric circuit, and utilizes the phenomenon of electric induction to convert alternating current power supplied from one coil into different alternating current power of the same frequency in another coil.
[0006]
[0007] These transformers are broadly classified into oil-filled transformers, which insulate and cool windings using insulating oil, and molded transformers (dry-type transformers), which insulate windings by encasing them in resins such as epoxy. Molded transformers are widely adopted by consumers due to their advantages in preventing deterioration, failures, and fire safety caused by moisture or vibration, as well as their ability to be installed indoors due to their small footprint.
[0008]
[0009] Transformers generate significant heat during operation, and proper temperature management is particularly important for molded transformers in which coils are embedded in resin. This is because if temperature is not properly managed, the heat generated during operation can damage the epoxy resin surrounding the coils, leading to a high risk of insulation breakdown and a decrease in transformer efficiency due to the heat generated.
[0010]
[0011] Accordingly, mold transformers generally include a cooling device to properly cool the heat generated during operation.
[0012]
[0013] An example of a conventional cooling device for a molded transformer is disclosed in a prior patent document. This technology is designed to cool the transformer by forming an external air inlet at the bottom of the casing and providing a fan inside to supply cold air upward.
[0014]
[0015] However, prior art document 1 had a problem in that it had poor cooling efficiency and excessive energy loss costs due to cooling the entire inside of the casing because it simply supplied cold air to the inside of the casing regardless of the heat generation location of multiple coil assemblies.
[0016]
[0017] In particular, the heat generated during the operation of the molded transformer varies not only for each coil assembly but also exhibits different heat generation patterns at the top and bottom of individual coil assemblies, making efficient cooling of the molded transformer difficult.
[0018]
[0019] Accordingly, the 'cooling device for a molded transformer' of Patent No. 10-1678003, the 'system and method for controlling residual healthy phases in the event of simultaneous transmission line failure' of Publication No. 10-2024-0169807, the 'system for reducing internal heat generation in a substation' of Publication No. 10-2024-0030939, and the 'molded transformer capable of individual transformer cooling' of Patent No. 10-2601817 have been disclosed, but the aforementioned problems are still not being improved.
[0020] The present invention was devised to solve the problems of the aforementioned prior art, and has been completed as a technical objective with a focus on providing a temperature control device for a power transmission and distribution transformer equipped with a temperature blocking member on the upper part of the transformer, a sensor for measuring the transformer's temperature, and a temperature transfer member for raising the temperature, so as to prevent problems caused by heat generation in the transformer in advance in a power transmission and distribution configuration consisting of a utility pole, a transformer, and a transmission line.
[0021] Accordingly, the present invention relates to a temperature control device that detects a temperature change in a transformer among a utility pole, transformer, and line configured for power transmission, distribution, and power distribution, and causes the transformer to reach a set temperature set by a user, wherein the device comprises an internal temperature sensing sensor located inside the transformer to detect the internal temperature and an external temperature sensing sensor located outside the transformer to detect the external temperature, and a temperature blocking member configured on the upper part of the transformer to block solar heat emitted from the transformer, comprising a first support member protruding a certain length upward from the transformer, a first wing portion connected to the first support member to unfold and fold outward, a first auxiliary wing portion extending outward from the first wing portion to unfold and fold, and a wing portion made of a heat-blocking material, and wherein the device comprises a second support member configured on the lower part of the transformer to transmit solar heat emitted from the transformer, protruding a certain length downward from the transformer, and a second support member connected to the second support member to unfold and fold outward The technical features of the temperature control device for a power transmission and distribution transformer include a second wing portion that is folded, a first auxiliary wing portion that extends outwardly from the second wing portion and is unfolded and folded, and a wing portion made of a heat-reflecting reflective material, and a control unit that controls according to a user's settings by linking with the internal temperature sensing sensor, external temperature sensing sensor, temperature blocking member, and temperature transfer member.
[0022] According to the present invention, a temperature control device for a power transmission and distribution transformer is equipped with a sensor that measures the temperature of the transformer, thereby allowing the temperature to be determined in advance according to the user's control. Consequently, the temperature cutoff member and the temperature transfer member can be operated by the control unit, and the temperature of the transformer can be controlled in advance accordingly. As the temperature of the transformer is controlled, problems such as overheating or cooling can be prevented in advance.
[0023] FIG. 1 is a drawing showing conventional utility poles, transformers, and power lines.
[0024] FIG. 2 is a cross-sectional view showing the temperature control device of the present invention.
[0025] FIG. 3 is a cross-sectional view showing the on / off of the temperature blocking member in FIG. 2.
[0026] FIG. 4 is a cross-sectional view showing the configuration of the barrier material in the temperature blocking member of FIG. 3.
[0027] FIG. 5 is a cross-sectional view showing the on / off state of the temperature transfer member in FIG. 2.
[0028] FIG. 6 is a cross-sectional view showing the configuration of a reflector in the temperature transfer member of FIG. 5.
[0029] FIG. 7 is a cross-sectional view showing the 'on' state of the temperature control device of the present invention.
[0030] FIG. 8 is a side view showing FIG. 7.
[0031] FIG. 9 is a side view showing a support member among the components of the blocking member in FIG. 8.
[0032] FIG. 10 is a side view showing a barrier between the supports in FIG. 9.
[0033]
[0034] 10 : Utility pole 20 : Transformer 30 : Line
[0035] 100 : Internal temperature sensor 200 : External temperature sensor
[0036] 300: Temperature blocking member 310: First support 320: Wing part
[0037] 321: 1st wing section 323: 1st auxiliary wing section 325: Barrier
[0038] 400: Temperature transfer member 410: Second support 420: Wing section
[0039] 421: Second wing section 423: Second auxiliary wing section 425: Reflector
[0040] 500 : Blocking member 510 : Support 520 : Barrier
[0041] Hereinafter, the preferred configuration and operation of the present invention for achieving the above objective in relation to the attached drawings will be described with reference to FIGS. 1 to 10 as follows.
[0042]
[0043] First of all, the temperature control device for a power transmission and distribution transformer according to the present invention is,
[0044] In a temperature control device that detects a temperature change of the transformer (20) among the power pole (10), transformer (20), and line (30) configured for power transmission, power distribution, and power distribution, and causes the transformer (20) to reach a set temperature set by the user,
[0045] An internal temperature sensing sensor (100) is configured to be located inside the transformer (20) and to detect the internal temperature, and
[0046] An external temperature sensing sensor (200) is configured to be located outside the transformer (20) and to detect the external temperature.
[0047] A temperature blocking member (300) is configured such that it is configured on the upper part of the transformer (20) to block solar heat emitted from the transformer (20) and comprises a first support member (310) protruding a certain length upward from the transformer (20), a first wing portion (321) connected to the first support member (310) and unfolded and folded outward, a first auxiliary wing portion (323) extending outward from the first wing portion (321) and unfolded and folded, and a wing portion (320) composed of a heat-blocking material (325).
[0048] A temperature transfer member (400) is configured to be configured at the lower part of the transformer (20) to transfer solar heat emitted from the transformer (20), and comprises a second support member (410) protruding a certain length downward from the transformer (20), a second wing portion (421) connected to the second support member (410) and unfolded and folded outward, a first auxiliary wing portion (423) extending outward from the second wing portion (421) and unfolded and folded, and a wing portion (420) made of a reflective material (425) that reflects heat.
[0049] A temperature control device for a power transmission and distribution transformer, characterized by being composed of a control unit that controls according to a user's settings in conjunction with the above internal temperature sensing sensor (100), external temperature sensing sensor (200), temperature blocking member (300), and temperature transfer member (400).
[0050]
[0051] To explain the present invention described above in more detail,
[0052] First of all, the present invention is used for power transmission or distribution or power distribution consisting of a utility pole (10), a transformer (20) and a line (30).
[0053]
[0054] Here, the present invention is a technology that detects the temperature of a transformer (20) and the ambient temperature, compares the detection result with a setting value set by the user, and then cuts off the temperature of the transformer (20) or transmits the temperature to reach the set temperature.
[0055]
[0056] The internal temperature sensing sensor (100) is located inside the transformer (20) and detects the temperature inside the transformer (20).
[0057]
[0058] The external temperature sensing sensor (200) is located outside the transformer (20) and detects the ambient temperature outside the transformer (20).
[0059]
[0060] The above internal temperature sensing sensor (100) and external temperature sensing sensor (200) are linked with the control unit (500) below, and the temperature blocking member (300) and the temperature transfer member (400) can be operated in advance according to the set values for the internal temperature and external temperature and the change in temperature.
[0061]
[0062] The temperature blocking member (300) is configured on the upper part of the transformer (20) to block solar heat from the transformer (20), and is composed of a first support (310) and a wing part (320).
[0063] The above temperature blocking member (300) is composed of a first support (310) and a wing portion (320), and the wing portion (320) is spread outward.
[0064] The unfolding and folding of the wing portion (320) can be operated hydraulically or by gears.
[0065] In addition, the wing portion (320) is configured with a plurality of support members that support from the first support member (310) to the outer end of the wing portion (320).
[0066]
[0067] Due to the configuration of the above support members, the temperature blocking member (300) can be formed in a convex shape.
[0068]
[0069] The first support member (310) protrudes a certain length upward from the transformer (20) and acts as a support for the wing member (320) when the wing member (320) is unfolded.
[0070]
[0071] The first support member (310) is configured to surround the outer circumference of the utility pole (10), and a fixing member is configured to fix both ends of the first support member (310) that surrounds the utility pole (10).
[0072] In the case of the above fixed member, it is also applied to the following second support (410).
[0073]
[0074] The wing portion (320) consists of a first wing portion (321), a first auxiliary wing portion (323), and a blocking material (325).
[0075]
[0076] The first wing portion (321) is connected to the first support (310) and is unfolded and folded outward.
[0077] At this time, the first wing portion (321) is spread out or folded outward with the upper side of the first support (310) as the center.
[0078]
[0079] When the first wing portion (321) is unfolded, the two ends of the first wing portion (321) are fastened by a fastening member due to the first support member (310) surrounding the utility pole (10).
[0080] At this time, the first wing section (321) is also applied to the first auxiliary wing section (323), the second wing section (421), and the second auxiliary wing section (423).
[0081]
[0082] The first auxiliary wing portion (323) is configured to extend outward from the first wing portion (321), and unfolds and folds according to the operation of the first wing portion (321).
[0083] In the case of the above auxiliary wing portion (323), it may be hinge-connected to the first wing portion (321) so as to be folded, or it may be inserted into the internal space provided on the inner side of the first wing portion (321).
[0084] In the case of the above hinge connection, unfolding and folding are performed, and in the case of the internal space, insertion and withdrawal are performed.
[0085] This also applies to the second wing section (421) and the second auxiliary wing section (423) below.
[0086]
[0087] The blocking material (325) is configured on the first wing portion (321) and the first auxiliary wing portion (323) to block emitted solar heat, thereby enabling the temperature of the transformer (20) to be lowered.
[0088] The above-mentioned barrier material (325) used a fabric coated with aerogel particles.
[0089] This allowed for the blocking of solar heat.
[0090] In addition, the above barrier material (325) may additionally be composed of an upper fabric, a waterproof fabric, and a lower fabric.
[0091]
[0092] The temperature transfer member (400) is configured at the bottom of the transformer (20) to transfer solar heat to the transformer (20), and is composed of a second support (410) and a wing part (420).
[0093] The above-mentioned temperature transfer member (400) is composed of a second support (410) and a wing portion (420), so that the wing portion (420) spreads outward.
[0094] The unfolding and folding of the wing portion (420) can be operated hydraulically or by gears.
[0095] In addition, the wing portion (420) is configured with a plurality of support members that support from the second support member (410) to the outer end of the wing portion (420).
[0096]
[0097] Due to the configuration of the above support members, the temperature transfer member (400) can be formed in a concave shape.
[0098]
[0099] The second support (410) protrudes a certain length downward from the transformer (20) and acts as a support for the wing portion (420) when the wing portion (420) is unfolded.
[0100]
[0101] The wing portion (420) consists of a second wing portion (421), a second auxiliary wing portion (423), and a reflector (425).
[0102]
[0103] The second wing portion (421) is connected to the second support (410) and is unfolded and folded outward.
[0104] At this time, the second wing portion (421) is spread out or folded outward, centering on the lower side of the second support (410).
[0105]
[0106] The second auxiliary wing portion (423) is configured to extend outward from the second wing portion (421), and unfolds and folds according to the operation of the second wing portion (421).
[0107]
[0108] The reflector (425) is configured on the second wing portion (421) and the second auxiliary wing portion (423) to reflect emitted solar heat, thereby raising the temperature of the transformer (20).
[0109]
[0110] The above reflective material (425) used a fabric coated with polyethylene resin containing titanium dioxide as a white pigment.
[0111] This allowed it to reflect solar heat.
[0112] In addition, the reflective material (425) may additionally be composed of an upper fabric, a waterproof fabric, and a lower fabric.
[0113]
[0114] The control unit is linked with the internal temperature sensing sensor (100), external temperature sensing sensor (200), temperature blocking member (300), and temperature transfer member (400) and controls according to the user's settings.
[0115]
[0116] A blocking member (500) is configured to interconnect the temperature blocking member (300) and the temperature transfer member (400), surround the outer circumference of the transformer (20), and block foreign substances from the outside.
[0117] The above blocking member (500) comprises a plurality of supports (510) that interconnect the wing portion (320) of the temperature blocking member (300) and the wing portion (420) of the temperature transfer member (400), and a blocking membrane (520) formed between the supports (510) and the supports (510).
[0118]
[0119] According to the present invention as described above, a sensor for measuring the temperature of a transformer is provided so that the temperature can be determined in advance according to the control of the user, thereby enabling the operation of the temperature cutoff member and the temperature transfer member through the control of the control unit, and simultaneously allowing the temperature of the transformer to be controlled in advance accordingly, and as the temperature of the transformer is controlled, problems regarding overheating or cooling can be prevented in advance.
[0120] Hereinafter, the preferred configuration and operation of the present invention for achieving the above objective in relation to the attached drawings will be described with reference to FIGS. 1 to 10 as follows.
[0121]
[0122] First of all, the temperature control device for a power transmission and distribution transformer according to the present invention is,
[0123] In a temperature control device that detects a temperature change of the transformer (20) among the power pole (10), transformer (20), and line (30) configured for power transmission, power distribution, and power distribution, and causes the transformer (20) to reach a set temperature set by the user,
[0124] An internal temperature sensing sensor (100) is configured to be located inside the transformer (20) and to detect the internal temperature, and
[0125] An external temperature sensing sensor (200) is configured to be located outside the transformer (20) and to detect the external temperature.
[0126] A temperature blocking member (300) is configured such that it is configured on the upper part of the transformer (20) to block solar heat emitted from the transformer (20) and comprises a first support member (310) protruding a certain length upward from the transformer (20), a first wing portion (321) connected to the first support member (310) and unfolded and folded outward, a first auxiliary wing portion (323) extending outward from the first wing portion (321) and unfolded and folded, and a wing portion (320) composed of a heat-blocking material (325).
[0127] A temperature transfer member (400) is configured to be configured at the lower part of the transformer (20) to transfer solar heat emitted from the transformer (20), and comprises a second support member (410) protruding a certain length downward from the transformer (20), a second wing portion (421) connected to the second support member (410) and unfolded and folded outward, a first auxiliary wing portion (423) extending outward from the second wing portion (421) and unfolded and folded, and a wing portion (420) made of a reflective material (425) that reflects heat.
[0128] A temperature control device for a power transmission and distribution transformer, characterized by being composed of a control unit that controls according to a user's settings in conjunction with the above internal temperature sensing sensor (100), external temperature sensing sensor (200), temperature blocking member (300), and temperature transfer member (400).
[0129]
[0130] To explain the present invention described above in more detail,
[0131] First of all, the present invention is used for power transmission or distribution or power distribution consisting of a utility pole (10), a transformer (20) and a line (30).
[0132]
[0133] Here, the present invention is a technology that detects the temperature of a transformer (20) and the ambient temperature, compares the detection result with a setting value set by the user, and then cuts off the temperature of the transformer (20) or transmits the temperature to reach the set temperature.
[0134]
[0135] The internal temperature sensing sensor (100) is located inside the transformer (20) and detects the temperature inside the transformer (20).
[0136]
[0137] The external temperature sensing sensor (200) is located outside the transformer (20) and detects the ambient temperature outside the transformer (20).
[0138]
[0139] The above internal temperature sensing sensor (100) and external temperature sensing sensor (200) are linked with the control unit (500) below, and the temperature blocking member (300) and the temperature transfer member (400) can be operated in advance according to the set values for the internal temperature and external temperature and the change in temperature.
[0140]
[0141] The temperature blocking member (300) is configured on the upper part of the transformer (20) to block solar heat from the transformer (20), and is composed of a first support (310) and a wing part (320).
[0142] The above temperature blocking member (300) is composed of a first support (310) and a wing portion (320), and the wing portion (320) is spread outward.
[0143] The unfolding and folding of the wing portion (320) can be operated hydraulically or by gears.
[0144] In addition, the wing portion (320) is configured with a plurality of support members that support from the first support member (310) to the outer end of the wing portion (320).
[0145]
[0146] Due to the configuration of the above support members, the temperature blocking member (300) can be formed in a convex shape.
[0147]
[0148] The first support member (310) protrudes a certain length upward from the transformer (20) and acts as a support for the wing member (320) when the wing member (320) is unfolded.
[0149]
[0150] The first support member (310) is configured to surround the outer circumference of the utility pole (10), and a fixing member is configured to fix both ends of the first support member (310) that surrounds the utility pole (10).
[0151] In the case of the above fixed member, it is also applied to the following second support (410).
[0152]
[0153] The wing portion (320) consists of a first wing portion (321), a first auxiliary wing portion (323), and a blocking material (325).
[0154]
[0155] The first wing portion (321) is connected to the first support (310) and is unfolded and folded outward.
[0156] At this time, the first wing portion (321) is spread out or folded outward with the upper side of the first support (310) as the center.
[0157]
[0158] When the first wing portion (321) is unfolded, the two ends of the first wing portion (321) are fastened by a fastening member due to the first support member (310) surrounding the utility pole (10).
[0159] At this time, the first wing section (321) is also applied to the first auxiliary wing section (323), the second wing section (421), and the second auxiliary wing section (423).
[0160]
[0161] The first auxiliary wing portion (323) is configured to extend outward from the first wing portion (321), and unfolds and folds according to the operation of the first wing portion (321).
[0162] In the case of the above auxiliary wing portion (323), it may be hinge-connected to the first wing portion (321) so as to be folded, or it may be inserted into the internal space provided on the inner side of the first wing portion (321).
[0163] In the case of the above hinge connection, unfolding and folding are performed, and in the case of the internal space, insertion and withdrawal are performed.
[0164] This also applies to the second wing section (421) and the second auxiliary wing section (423) below.
[0165]
[0166] The blocking material (325) is configured on the first wing portion (321) and the first auxiliary wing portion (323) to block emitted solar heat, thereby enabling the temperature of the transformer (20) to be lowered.
[0167] The above-mentioned barrier material (325) used a fabric coated with aerogel particles.
[0168] This allowed for the blocking of solar heat.
[0169] In addition, the above barrier material (325) may additionally be composed of an upper fabric, a waterproof fabric, and a lower fabric.
[0170]
[0171] The temperature transfer member (400) is configured at the bottom of the transformer (20) to transfer solar heat to the transformer (20), and is composed of a second support (410) and a wing part (420).
[0172] The above-mentioned temperature transfer member (400) is composed of a second support (410) and a wing portion (420), so that the wing portion (420) spreads outward.
[0173] The unfolding and folding of the wing portion (420) can be operated hydraulically or by gears.
[0174] In addition, the wing portion (420) is configured with a plurality of support members that support from the second support member (410) to the outer end of the wing portion (420).
[0175]
[0176] Due to the configuration of the above support members, the temperature transfer member (400) can be formed in a concave shape.
[0177]
[0178] The second support (410) protrudes a certain length downward from the transformer (20) and acts as a support for the wing portion (420) when the wing portion (420) is unfolded.
[0179]
[0180] The wing portion (420) consists of a second wing portion (421), a second auxiliary wing portion (423), and a reflector (425).
[0181]
[0182] The second wing portion (421) is connected to the second support (410) and is unfolded and folded outward.
[0183] At this time, the second wing portion (421) is spread out or folded outward, centering on the lower side of the second support (410).
[0184]
[0185] The second auxiliary wing portion (423) is configured to extend outward from the second wing portion (421), and unfolds and folds according to the operation of the second wing portion (421).
[0186]
[0187] The reflector (425) is configured on the second wing portion (421) and the second auxiliary wing portion (423) to reflect emitted solar heat, thereby raising the temperature of the transformer (20).
[0188]
[0189] The above reflective material (425) used a fabric coated with polyethylene resin containing titanium dioxide as a white pigment.
[0190] This allowed it to reflect solar heat.
[0191] In addition, the reflective material (425) may additionally be composed of an upper fabric, a waterproof fabric, and a lower fabric.
[0192]
[0193] The control unit is linked with the internal temperature sensing sensor (100), external temperature sensing sensor (200), temperature blocking member (300), and temperature transfer member (400) and controls according to the user's settings.
[0194]
[0195] A blocking member (500) is configured to interconnect the temperature blocking member (300) and the temperature transfer member (400), surround the outer circumference of the transformer (20), and block foreign substances from the outside.
[0196] The above blocking member (500) comprises a plurality of supports (510) that interconnect the wing portion (320) of the temperature blocking member (300) and the wing portion (420) of the temperature transfer member (400), and a blocking membrane (520) formed between the supports (510) and the supports (510).
[0197]
[0198] According to the present invention as described above, a sensor for measuring the temperature of a transformer is provided so that the temperature can be determined in advance according to the control of the user, thereby enabling the operation of the temperature cutoff member and the temperature transfer member through the control of the control unit, and simultaneously allowing the temperature of the transformer to be controlled in advance accordingly, and as the temperature of the transformer is controlled, problems regarding overheating or cooling can be prevented in advance.
Claims
1. A temperature control device that detects a temperature change in the transformer (20) among the power pole (10), transformer (20), and line (30) configured for power transmission, power distribution, and power distribution, and causes the transformer (20) to reach a set temperature set by a user, An internal temperature sensing sensor (100) is configured to be located inside the transformer (20) and to detect the internal temperature, and An external temperature sensing sensor (200) is configured to be located outside the transformer (20) and to detect the external temperature. A temperature blocking member (300) is configured such that it is configured on the upper part of the transformer (20) to block solar heat emitted from the transformer (20) and comprises a first support member (310) protruding a certain length upward from the transformer (20), a first wing portion (321) connected to the first support member (310) and unfolded and folded outward, a first auxiliary wing portion (323) extending outward from the first wing portion (321) and unfolded and folded, and a wing portion (320) composed of a heat-blocking material (325). A temperature transfer member (400) is configured to be configured at the lower part of the transformer (20) to transfer solar heat emitted from the transformer (20), and comprises a second support member (410) protruding a certain length downward from the transformer (20), a second wing portion (421) connected to the second support member (410) and unfolded and folded outward, a first auxiliary wing portion (423) extending outward from the second wing portion (421) and unfolded and folded, and a wing portion (420) made of a reflective material (425) that reflects heat. A temperature control device for a power transmission and distribution transformer, characterized by being composed of a control unit that controls according to a user's settings in conjunction with the above internal temperature sensing sensor (100), external temperature sensing sensor (200), temperature blocking member (300), and temperature transfer member (400).
2. In Paragraph 1, A blocking member (500) is configured to interconnect the above-mentioned temperature blocking member (300) and temperature transfer member (400), surround the outer circumference of the transformer (20), and block foreign substances entering from the outside. A temperature control device for a power transmission and distribution transformer, characterized in that the above-mentioned blocking member (500) has a plurality of supports (510) that interconnect the wing portion (320) of the temperature blocking member (300) and the wing portion (420) of the temperature transfer member (400), and a blocking membrane (520) formed between the supports (510) and the supports (510).