Electric energy metering box with excellent heat dissipation

Abstract

The invention relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box with excellent heat dissipation, which comprises a box body, one side of the box body is provided with an accommodating groove capable of storing electrical elements, the box body is rotatably connected with a box door, and the top of the box body is provided with a storage box. The storage box can be filled with an organic matter phase change material prepared according to a specific formula, the solid-liquid conversion temperature range of the organic matter phase change material is close to the expected highest temperature under the normal operation condition of the metering box, and a micro-channel liquid cooling plate is arranged on the bottom wall of the containing groove; the micro-channel liquid cooling plate can be tightly attached to the electrical element. The metering box has the effect of improving the heat dissipation performance of the metering box.

Description

Technical Field

[0001] The present application relates to the technical field of electric energy meter boxes, and in particular to an electric energy meter box with excellent heat dissipation. Background Art

[0002] The electric energy meter box is an electrical device used to measure and record electric energy consumption and is widely used in power systems.

[0003] In the related art, an electric energy meter box includes a box body and a box door, the box body and the box door are rotatably connected, and electrical components are arranged in the box body.

[0004] At present, most of the electricity meter boxes adopt natural air cooling for heat dissipation. However, in poorly ventilated places, the natural air cooling cannot meet the heat dissipation requirements of the electricity meter boxes, so it is preferred to be improved. Summary of the invention

[0005] In order to improve the heat dissipation performance of the meter box, the present application provides an electric energy meter box with excellent heat dissipation.

[0006] The present application provides an electric energy meter box with excellent heat dissipation, which adopts the following technical solution: An electric energy meter box with excellent heat dissipation comprises a box body, a storage groove capable of storing electrical components is provided on one side of the box body, a box door is rotatably connected to the box body, a storage box is provided on the top of the box body, and an organic phase change material prepared with a specific formula can be filled in the storage box, the solid-liquid transition temperature range of the organic phase change material is near the expected maximum temperature under normal operating conditions of the meter box, and a microchannel liquid cooling plate is provided on the bottom wall of the storage groove, and the microchannel liquid cooling plate can be in close contact with the electrical components.

[0007] By adopting the above technical scheme, when the temperature of the metering box rises, the organic phase change material absorbs the heat in the surrounding environment, so that the phase change material changes from solid to liquid, thereby reducing the local hot spot temperature of the metering box; when the temperature drops at night or the load is reduced during the day, the overall thermal balance is restored and then it automatically solidifies and is stored to prepare for the next peak period; when the temperature in the box rises and exceeds the preset threshold of the microchannel liquid cooling plate, the built-in water pump of the microchannel liquid cooling plate is triggered to operate, and the built-in water pump of the microchannel liquid cooling plate causes the special coolant to circulate in the microchannel liquid cooling plate, and the microchannel liquid cooling plate absorbs the heat in the box to reduce the internal temperature of the metering box; the metering box adopts a composite heat dissipation mode, and the heat dissipation performance is better when the two heat dissipation modes work together; when one set of heat dissipation modes is damaged, the other set of heat dissipation modes can still dissipate heat, reduce the temperature in the box, and protect the electrical components.

[0008] Optionally, a locking structure connecting the storage box and the case body is provided, the locking structure includes a movable rod vertically slidably arranged on the bottom wall of the accommodating groove, the upper side wall of the movable rod is provided with an elastic hook, the upper inner wall of the accommodating groove is provided with a socket for the movable rod and the hook to pass through, the bottom wall of the storage box is provided with a slot for the movable rod and the hook to be inserted, the inner wall of the slot is provided with a locking strip that can be hooked and cooperated with the hook, and a lifting assembly that can drive the movable rod to rise and fall is provided in the case body.

[0009] By adopting the above technical solution, the storage box is installed on the box body, the slot is aligned with the socket, the movable rod is driven to rise, and the movable rod and the hook are inserted into the slot together until the hook and the locking bar are hooked and matched to connect the storage box to the box body; conversely, the hook and the locking bar are unlocked to facilitate the separation of the storage box from the box body, thereby replacing the phase change material in the storage box.

[0010] Optionally, the lifting assembly includes a gear rotatably connected to the bottom wall of the accommodating groove, a first rack vertically slidably arranged on the bottom wall of the accommodating groove, and a second rack arranged below the storage box, and the upper inner wall of the accommodating groove is provided with a through hole for the second rack to pass through, the gear is located between the first rack and the second rack, and the first rack and the second rack are both engaged with the gear.

[0011] By adopting the above technical solution, when the storage box is installed on the box body, the first rack is passed through the through hole and inserted into the accommodating groove, so that the first rack is engaged with the gear. The first rack drives the gear to rotate, and the gear drives the second rack and the movable rod to rise together. There is no need for the staff to drive the movable rod separately, thereby reducing the installation steps and improving the installation efficiency. Conversely, the storage box and the first gear are driven to rise, and the first gear drives the gear to rotate in the opposite direction, so that the second gear descends.

[0012] Optionally, a limit block is provided on the bottom wall of the slot, and a limit groove into which the limit block can be inserted is formed on the upper end surface of the movable rod.

[0013] By adopting the above technical solution, when the movable rod is inserted into the slot, when the limiting block is inserted into the limiting groove, the position of the movable rod is not easily shifted.

[0014] Optionally, the storage box is provided with an unlocking structure capable of releasing the locking relationship between the hook and the locking bar, and the end face of the storage box along the width direction of the box body is provided with an operating hole connected to the slot, and the operating hole is in the shape of a horizontal long hole, and the unlocking structure includes a push block horizontally slidably arranged in the slot and an operating rod slidably arranged in the operating hole, the push block is connected to the end face of the operating rod facing the locking bar, and the push block is in contact with the end face of the locking bar close to the bottom wall of the slot.

[0015] By adopting the above technical solution, the operating rod is driven to move toward the locking bar, and the operating rod drives the push block to move, so that the push block pushes the hook, so that the hook is no longer hooked with the locking bar, making it convenient for the staff to separate the movable rod from the storage box.

[0016] Optionally, a storage cavity is formed on the inner wall of the storage box, a fixing hole connected to the storage cavity is formed on the lower end surface of the storage box, the fixing hole is located on one side of the slot along the length direction of the box body, a blocking structure capable of opening and closing the fixing hole is provided on the storage box, a mounting groove connected to the fixing hole is formed on the side wall of the slot, the blocking structure comprises a spring and a mounting plate arranged in the mounting groove, one end of the spring is fixedly connected to the bottom wall of the mounting groove, the other end of the spring is fixedly connected to the mounting plate, and a mounting hole capable of connecting to the fixing hole is formed on the upper end surface of the mounting plate; when the spring is not subjected to force, the fixing hole and the mounting hole are staggered.

[0017] By adopting the above technical solution, the mounting plate is driven to move, so that the mounting hole is connected with the fixing hole, and the spring is compressed and deformed at the same time; when the mounting plate is no longer subjected to force, the spring resets and drives the mounting plate to move, so that the mounting hole and the fixing hole are offset, and the mounting plate blocks the fixing hole again.

[0018] Optionally, the push block can drive the mounting plate to move and connect the fixing hole with the mounting hole.

[0019] By adopting the above technical solution, when the storage box is not connected to the box body, the operating rod is driven to move horizontally, and the operating rod drives the push block to move, so that the push block can push the mounting plate to realize the opening and closing action of the fixing hole, thereby increasing the functionality of the unlocking structure.

[0020] Optionally, when the operating rod abuts against the locking bar, the fixing hole and the mounting hole are in a connected state.

[0021] By adopting the above technical solution, when the operating rod conflicts with the locking strip, the operating rod is restricted from further movement, thus playing a limiting role.

[0022] Optionally, the upper end surface of the box body is provided with a positioning frame surrounding the outside of the insertion hole, and the positioning frame can be inserted into the slot and fit with the inner wall of the slot.

[0023] By adopting the above technical solution, when the storage box is installed on the box body, the positioning frame is inserted into the slot, so that the storage box is not easy to move horizontally above the box body, thereby playing a positioning role.

[0024] Optionally, a box door is rotatably connected to the box body, and the outer surface of the box body and the outer surface of the box door are both covered with heat dissipation films.

[0025] By adopting the above technical solution, the heat dissipation film can reflect sunlight and reduce the temperature rise rate of the box body and the door.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the temperature of the metering box rises, the organic phase change material absorbs the heat in the surrounding environment, so that the phase change material changes from solid to liquid, thereby reducing the local hot spot temperature of the metering box; when the temperature drops at night or the load is reduced during the day, the overall thermal balance is restored and then it automatically solidifies and is stored to prepare for the next peak period; when the temperature in the box rises to exceed the preset threshold of the microchannel liquid cooling plate, the built-in water pump of the microchannel liquid cooling plate is triggered to operate, and the built-in water pump of the microchannel liquid cooling plate causes the special coolant to circulate in the microchannel liquid cooling plate, and the microchannel liquid cooling plate absorbs the heat in the box to reduce the internal temperature of the metering box; the metering box adopts a composite heat dissipation mode, and the heat dissipation performance is better when the two heat dissipation modes work together; when one heat dissipation mode is damaged, the other heat dissipation mode can still dissipate heat, reduce the temperature in the box, and protect the electrical components; 2. During the process of installing the storage box into the box body, the movable rod and the hook are raised through the first rack, the second rack and the gear, so that the hook and the locking strip are hooked and matched. There is no need for the staff to perform additional locking operations, which reduces the installation steps, reduces the assembly time, and improves the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the structure when the box door is removed; Figure 3 This is the side view with the box door removed; Figure 4 is along Figure 3 Partial cross-sectional view along line AA; Figure 5 is a schematic diagram highlighting the locking structure; Figure 6 yes Figure 4 Schematic diagram of the enlarged portion B.

[0029] Figure numerals: 1. box body; 11. accommodating groove; 12. jack; 13. positioning frame; 14. guide groove; 15. perforation; 16. microchannel liquid cooling plate; 2. box door; 3. storage box; 31. storage cavity; 32. fixing hole; 33. slot; 34. operating hole; 35. limit block; 36. mounting groove; 4. blocking structure; 41. mounting plate; 411. mounting hole; 42. spring; 43. block; 5. locking structure; 51. movable rod; 511. limit groove; 52. hook; 53. locking strip; 54. lifting assembly; 541. gear; 542. first rack; 543. second rack; 544. guide block; 6. unlocking structure; 61. operating rod; 62. push block. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-6 This application is described in further detail.

[0031] This embodiment discloses an electric energy meter box with excellent heat dissipation. Figure 1 and Figure 2 An electric energy metering box with excellent heat dissipation comprises a box body 1 and a box door 2. A receiving groove 11 is provided on one side of the box body 1, and an electrical component can be installed in the receiving groove 11.

[0032] Reference Figure 1 The door 2 is rotatably connected to the box body 1, and the door 2 can block the receiving groove 11. The outer surface of the box body 1 and the outer surface of the door 2 are both covered with a light diffusion film, so that the box body 1 and the door 2 can reflect sunlight and reduce the temperature rise rate of the box body 1 and the door 2.

[0033] Reference Figure 1 and Figure 2 The upper end surface of the box body 1 is provided with three storage boxes 3, and the three storage boxes 3 are arranged in an array along the length direction of the box body 1. In other embodiments, the storage box 3 can also be provided with one, two or other numbers.

[0034] Reference Figure 4 The storage box 3 is provided with a storage cavity 31, which is filled with an organic phase change material. The organic phase change material is prepared with a specific formula, and the solid-liquid transition temperature range of the organic phase change material is within the expected maximum temperature under normal operating conditions of the electric energy meter box. The organic phase change material uses environmentally friendly paraffin as the basic raw material, and is modified by adding a small amount of additives to the environmentally friendly paraffin.

[0035] Reference Figure 4 and Figure 5 The lower end surface of the storage box 3 is provided with a fixing hole 32 and a slot 33, and the fixing hole 32 is connected with the storage cavity 31. The slot 33 is located on one side of the fixing hole 32 along the length direction of the box body 1, and the slot 33 is not connected with the storage cavity 31.

[0036] Reference Figure 4 and Figure 5 The storage box is provided with a blocking structure 4, which is used to open or close the fixing hole 32. The blocking structure 4 includes a mounting plate 41 and a spring 42. The inner wall of the slot 33 near the fixing hole 32 is provided with a mounting groove 36, and the mounting groove 36 is communicated with the fixing hole 32.

[0037] Reference Figure 4 and Figure 5 The mounting plate 41 and the spring 42 are both arranged in the mounting groove 36. The upper end surface of the mounting plate 41 is provided with a mounting hole 411, and the mounting hole 411 can be connected with the fixing hole 32. The mounting plate 41 is inserted into the slot 33, and a stopper 43 is fixedly connected to the end surface of the mounting plate 41 facing the bottom wall of the slot 33.

[0038] Reference Figure 4 and Figure 5 One end of the spring 42 is fixedly connected to the bottom wall of the mounting slot 36, and the other end of the spring 42 is fixedly connected to the mounting plate 41. When the spring 42 is not subjected to force, the mounting hole 411 and the fixing hole 32 are in a staggered state. When the stopper 43 abuts against the inner wall of the slot 33 close to the fixing hole 32, the spring 42 is in a compressed state, and the mounting hole 411 and the fixing hole 32 are in a connected state.

[0039] Reference Figure 4 and Figure 5 A locking structure 5 connecting the storage box 3 and the box body 1 is provided between the storage box 3 and the box body 1 , and the locking structure 5 is used to connect the storage box 3 and the box body 1 .

[0040] Reference Figure 4 and Figure 5 The upper end surface of the box body 1 is provided with an insertion hole 12, which is connected to the receiving groove 11. The upper end surface of the box body 1 is fixedly connected with a positioning frame 13, which surrounds the insertion hole 12. The positioning frame 13 can be inserted into the slot 33. When the positioning frame 13 is inserted into the slot 33, the horizontal circumferential surface of the positioning frame 13 is in contact with the horizontal inner wall of the slot 33.

[0041] Reference Figure 4 and Figure 6 The locking structure 5 includes a movable rod 51, a hook 52, a locking bar 53 and a lifting assembly 54. The movable rod 51 is vertically slidably arranged on the bottom wall of the accommodating groove 11, and the movable rod 51 can pass through the insertion hole 12 and be inserted into the slot 33. The bottom wall of the slot 33 is fixedly connected to the limit block 35. The upper end surface of the movable rod 51 is provided with a limit groove 511, and the limit groove 511 can be inserted into the limit block 35.

[0042] Reference Figure 4 and Figure 5The hook 52 is fixedly connected to the end surface of the movable rod 51 away from the fixing hole 32, and the hook 52 is elastic. The hook 52 can pass through the insertion hole 12 and be inserted into the slot 33.

[0043] Reference Figure 4 and Figure 5 The locking bar 53 is disposed in the slot 33, and both end surfaces of the locking bar 53 along the axis of the receiving groove 11 are fixedly connected to the inner wall of the slot 33. The locking bar 53 is located on a side away from the fixing hole 32. The hook 52 can be hooked and matched with the locking bar 53. When the hook 52 is hooked and matched with the locking bar 53, the hook 52 abuts against the surface of the locking bar 53 facing the bottom wall of the slot 33.

[0044] Reference Figure 4 and Figure 5 The lifting assembly 54 is used to drive the movable rod 51 to move up and down. The lifting assembly 54 includes a gear 541, a first rack 542 and a second rack 543. A through hole 15 is formed on the upper end surface of the box body 1, and the through hole 15 is connected to the accommodating groove 11.

[0045] Reference Figure 4 and Figure 5 The first rack 542 is fixedly connected to the lower end surface of the storage box 3. The first rack 542 can pass through the through hole 15 and enter the receiving groove 11. The gear 541 is rotatably connected to the bottom wall of the receiving groove 11. The gear 541 can mesh with the first rack 542.

[0046] Reference Figure 4 and Figure 5 , the second rack 543 is located on the side of the gear 541 away from the first gear 541. The second rack 543 is vertically slidably arranged on the bottom wall of the receiving groove 11, and the end surface of the second rack 543 facing the bottom wall of the receiving groove 11 is fixedly connected with a guide block 544, and the guide block 544 is in the shape of a dovetail block. The bottom wall of the receiving groove 11 is provided with a guide groove 14, and the guide groove 14 is in the shape of a vertical dovetail groove. The guide block 544 is slidably arranged in the guide groove 14. The second rack 543 is meshed with the gear 541, and the upper end surface of the second rack 543 is fixedly connected with the lower end surface of the movable rod 51.

[0047] Reference Figure 4 and Figure 5 The storage box 3 is provided with an unlocking structure 6. The unlocking structure 6 is used to release the locking relationship between the hook 52 and the locking strip 53, and is also used to control the blocking structure 4 to open or close the fixing hole 32.

[0048] Reference Figure 4 and Figure 5 The unlocking structure 6 includes an operating rod 61 and a push block 62. An operating hole 34 is formed on the end surface of the storage box 3 that opens toward the box body 1, and the operating hole 34 is connected to the slot 33. The operating hole 34 is in the shape of a horizontal long hole.

[0049] Reference Figure 4 and Figure 5 The operating rod 61 is horizontally slidably disposed in the operating hole 34 , and the operating rod 61 is located on a side of the locking bar 53 away from the fixing hole 32 .

[0050] Reference Figure 4 and Figure 5 The push block 62 is fixedly connected to the end surface of the operating rod 61 facing the fixing hole 32 , and the push block 62 is in contact with the end surface of the locking strip 53 facing the bottom wall of the slot 33 .

[0051] Reference Figure 4 and Figure 5 When the operating rod 61 abuts against the end surface of the locking bar 53 away from the fixing hole 32, the push block 62 abuts against the mounting plate 41, the stopper 43 abuts against the inner wall of the slot 33 close to the operating hole 34, and the mounting hole 411 is in a connected state with the fixing hole 32.

[0052] Reference Figure 2 The bottom wall of the receiving tank 11 is provided with a microchannel liquid cooling plate 16, and the microchannel liquid cooling plate 16 is in close contact with the surface safety area of ​​the electrical components in the receiving tank 11, and the electrical components include circuit breakers, mutual inductors, etc. A plurality of slender flow channels with a diameter less than 1 mm are embedded inside the microchannel liquid cooling plate 16. When the liquid medium circulates in the microchannel liquid cooling plate 16, it can take away the heat of the electrical components. The microchannel liquid cooling plate 16 can instantly cool the heat generated by the power grid circuit breaker and the arc heat generated by the power grid rupture.

[0053] The implementation principle of an electric energy meter box with excellent heat dissipation in the embodiment of the present application is as follows: the organic phase change material absorbs the energy in the meter box, causing the organic phase change material to change from solid to liquid, thereby reducing the local hot spot temperature of the meter box; the built-in water pump of the microchannel liquid cooling plate 16 is started, so that the special coolant circulates in the microchannel liquid cooling plate 16, and the microchannel liquid cooling plate 16 absorbs the heat in the box body 1, thereby reducing the internal temperature of the meter box.

[0054] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. An electric energy meter box with excellent heat dissipation, comprising a box body (1), characterized in that: A storage groove (11) capable of storing electrical components is provided on one side of the box body (1); a box door (2) is rotatably connected to the box body (1); a storage box (3) is provided on the top of the box body (1); an organic phase change material prepared with a specific formula can be filled in the storage box (3); the solid-liquid transition temperature range of the organic phase change material is close to the expected maximum temperature under normal operating conditions of the metering box; a microchannel liquid cooling plate (16) is provided on the bottom wall of the storage groove (11); the microchannel liquid cooling plate (16) can be in close contact with the electrical components.

2. The electric energy meter box with excellent heat dissipation according to claim 1 is characterized in that: A locking structure (5) is provided between the storage box (3) and the box body (1) to connect the two. The locking structure (5) includes a movable rod (51) vertically slidably arranged on the bottom wall of the accommodating groove (11). The upper side wall of the movable rod (51) is provided with an elastic hook (52). The upper inner wall of the accommodating groove (11) is provided with a plug hole (12) through which the movable rod (51) and the hook (52) can pass. The bottom wall of the storage box (3) is provided with a slot (33) through which the movable rod (51) and the hook (52) can be inserted. The inner wall of the slot (33) is provided with a locking strip (53) that can be hooked and matched with the hook (52). A lifting component (54) capable of driving the movable rod (51) to rise and fall is provided in the box body (1).

3. The electric energy meter box with excellent heat dissipation according to claim 2 is characterized in that: The lifting assembly (54) includes a gear (541) rotatably connected to the bottom wall of the accommodating groove (11), a first rack (542) vertically slidably arranged on the bottom wall of the accommodating groove (11), and a second rack (543) arranged below the storage box (3), the upper inner wall of the accommodating groove (11) is provided with a through hole (15) for the second rack (543) to pass through, the gear (541) is located between the first rack (542) and the second rack (543), and the first rack (542) and the second rack (543) are both engaged with the gear (541).

4. The electric energy meter box with excellent heat dissipation according to claim 2 is characterized in that: A limit block (35) is disposed on the bottom wall of the slot (33), and a limit groove (511) capable of being inserted into the limit block (35) is formed on the upper end surface of the movable rod (51).

5. The electric energy meter box with excellent heat dissipation according to claim 2 is characterized in that: The storage box (3) is provided with an unlocking structure (6) capable of releasing the locking relationship between the hook (52) and the locking strip (53); an operating hole (34) connected to the slot (33) is provided on the end surface of the storage box (3) along the width direction of the box body (1); the operating hole (34) is in the shape of a horizontal long hole; the unlocking structure (6) comprises a push block (62) horizontally slidably arranged in the slot (33) and an operating rod (61) slidably arranged in the operating hole (34); the push block (62) is connected to the end surface of the operating rod (61) facing the locking strip (53); the push block (62) and the end surface of the locking strip (53) close to the bottom wall of the slot (33) are in contact with each other.

6. The electric energy meter box with excellent heat dissipation according to claim 5, characterized in that: The inner wall of the storage box (3) is provided with a storage cavity (31); the lower end surface of the storage box (3) is provided with a fixing hole (32) connected to the storage cavity (31); the fixing hole (32) is located on one side of the slot (33) along the length direction of the box body (1); the storage box (3) is provided with a blocking structure (4) capable of opening and closing the fixing hole (32); the side wall of the slot (33) is provided with a mounting groove (36) connected to the fixing hole (32); the blocking structure (4) is provided with a mounting groove (36) connected to the fixing hole (32); the blocking structure (4) is provided with a mounting groove (36) connected to the fixing hole (32); the fixing hole (32 ... The structure (4) comprises a spring (42) and a mounting plate (41) arranged in the mounting groove (36); one end of the spring (42) is fixedly connected to the bottom wall of the mounting groove (36); the other end of the spring (42) is fixedly connected to the mounting plate (41); and the upper end surface of the mounting plate (41) is provided with a mounting hole (411) that can communicate with the fixing hole (32); when the spring (42) is not subjected to force, the fixing hole (32) and the mounting hole (411) are offset.

7. The electric energy meter box with excellent heat dissipation according to claim 6 is characterized in that: The push block (62) can drive the mounting plate (41) to move and connect the fixing hole (32) with the mounting hole (411).

8. The electric energy meter box with excellent heat dissipation according to claim 7, characterized in that: When the operating rod (61) abuts against the locking strip (53), the fixing hole (32) and the mounting hole (411) are in a communicating state.

9. The electric energy meter box with excellent heat dissipation according to claim 2, characterized in that: The upper end surface of the box body (1) is provided with a positioning frame (13) surrounding the outside of the insertion hole (12); the positioning frame (13) can be inserted into the slot (33) and fits with the inner wall of the slot (33).

10. The electric energy meter box with excellent heat dissipation according to claim 1, characterized in that: The box body (1) is rotatably connected to a box door (2), and the outer surfaces of the box body (1) and the box door (2) are both covered with heat dissipation films.

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