Shell and electric energy meter

Abstract

The utility model discloses a housing and an electric energy meter, the housing comprises a housing main body, and the housing main body defines a cavity and a heat dissipation port communicated with the cavity. A fixing groove and a first flow guide groove are formed in the outer side of the shell body, the fixing groove is used for fixing the shell, the fixing groove is located above the heat dissipation opening, the first flow guide groove is located below the fixing groove and communicates with the fixing groove, and the first flow guide groove is used for guiding water in the fixing groove out of the shell body. According to the scheme, water in the fixing groove can be dredged, short circuit or other electrical faults caused by the fact that water in the fixing groove flows to the heat dissipation opening are effectively restrained, the waterproof performance of the electric energy meter is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric energy meter, especially relates to a shell and electric energy meter. BACKGROUND

[0002] Electric energy meter refers to the terminal equipment specially used in substation or distribution system in power system. Electric energy meter is used for data acquisition, monitoring, control and communication functions, and can realize real-time monitoring and management of power equipment. Electric energy meter requires that the main control processor runs at a frequency not less than 1GHz, the load rate is not less than 50%, the environmental temperature is 70 DEG C, and the continuous work is 6h, at this time, the maximum junction temperature of the main control processor should not exceed 100 DEG C, that is, each function meets the requirements. Therefore, the shell of the electric energy meter needs to be provided with a heat dissipation opening for the heat dissipation of the main control core board. In the prior art, the shell of the electric energy meter is provided with a fixing groove for stable mounting and dismounting of the electric energy meter, but rainwater can gather in the fixing groove and flow to the heat dissipation opening, resulting in water entering the electric energy meter, that is, the existing electric energy meter has poor waterproof performance. SUMMARY

[0003] The utility model discloses a shell and electric energy meter, and aims to solve the technical problem of poor waterproof performance of the existing electric energy meter.

[0004] To achieve the above-mentioned purpose, the utility model discloses a shell for electric energy meter, the shell includes shell main body, the shell main body defines the cavity and the heat dissipation opening with the cavity, the outer side of the shell main body is equipped with the fixed groove and the first flow groove, the fixed groove is used to fix the shell, the fixed groove is located above the heat dissipation opening, the first flow groove is located below the fixed groove and is communicated with the fixed groove, and the first flow groove is used to guide the water in the fixed groove out of the shell main body.

[0005] In some embodiments, the shell main body includes a second flow groove above the fixed groove, the second flow groove is arranged around the heat dissipation opening, and the second flow groove is used to guide the water above it out of the shell main body.

[0006] In some embodiments, the shell main body includes a third flow groove between the fixed groove and the heat dissipation opening, the third flow groove is arranged around the heat dissipation opening, and the third flow groove is used to guide the water above it out of the shell main body.

[0007] In some embodiments, the third flow groove is communicated with the first flow groove to guide the water in the first flow groove out of the shell main body, and the third flow groove is arranged around the heat dissipation opening.

[0008] In some embodiments, along a transverse direction perpendicular to an axis direction of the heat dissipation opening, the third flow guide groove comprises oppositely arranged first and second groove sections, water in the first and second groove sections can be guided out of the shell body.

[0009] The first groove section is in communication with the first flow guide groove, and / or the second groove section is in communication with the first flow guide groove.

[0010] In some embodiments, along a vertical direction perpendicular to an axis direction of the heat dissipation opening, the first groove section comprises a third groove section located below the heat dissipation opening, the second groove section comprises a fourth groove section located below the heat dissipation opening, and the third groove section is in communication with the fourth groove section.

[0011] In some embodiments, a groove depth of the fixed groove is D1, and a groove depth of the first flow guide groove is D2, wherein D1 and D2 satisfy D1>D2.

[0012] And / or,

[0013] A groove depth of the fixed groove is D1, and a groove depth of the third flow guide groove is D3, wherein D1 and D3 satisfy D1>D3.

[0014] In some embodiments, the shell body comprises a water blocking rib located between the third flow guide groove and the heat dissipation opening, the water blocking rib is arranged around the heat dissipation opening, and the water blocking rib defines a groove side wall of the third flow guide groove.

[0015] In some embodiments, the shell body comprises a sealing groove located between the heat dissipation opening and the water blocking rib, the sealing groove is arranged around the heat dissipation opening, and along a direction parallel to an axis direction of the heat dissipation opening, the sealing groove is located on a side of the water blocking rib facing the cavity.

[0016] The second aspect of the utility model provides a kind of electric energy meter, and electric energy meter includes the shell described in above embodiment, still include control panel and heat dissipation part, the control panel is located in the cavity, and the heat dissipation part is located in the heat dissipation opening.

[0017] Compared with prior art, the utility model has the beneficial effects including:

[0018] The utility model discloses a technical scheme, the shell is used for electric energy meter. The shell includes shell main part. Shell main part defines the cavity and the heat dissipation mouth that leads to the cavity. The outside of shell main part is equipped with fixed groove, and fixed groove is used for fixing shell, and fixed groove is located the top of heat dissipation mouth and can realize the stable installation and removal of shell. In prior art, rainwater can gather in fixed groove and flow to heat dissipation mouth and cause electric energy meter to appear the situation of water inlet, that is, the waterproof performance of prior art electric energy meter is poor. The shell main part of the scheme includes the first flow guide groove that communicates with fixed groove, and the first flow guide groove can guide the water in fixed groove to the outside of shell main part, that is, the scheme can dredge the water in fixed groove, effectively suppress the water in fixed groove from flowing to heat dissipation mouth and cause short circuit or other electrical fault, improve the waterproof performance of electric energy meter and guarantee the service life. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the structure shown in these drawings without creating labor.

[0020] Figure 1 It is the structural schematic diagram of electric energy meter in an embodiment of the utility model;

[0021] Figure 2 It is the explosion schematic diagram of electric energy meter in an embodiment of the utility model;Wherein, show shell, fixed part and heat dissipation part;

[0022] Figure 3 It is the structural schematic diagram of shell in an embodiment of the utility model;Wherein, show the first flow guide groove, fixed groove, second flow guide groove and third flow guide groove;

[0023] Figure 4 It is the front view of shell in an embodiment of the utility model;Wherein, show the first groove section, second groove section, third groove section and fourth groove section;

[0024] Figure 5 It is the sectional view of shell in an embodiment of the utility model;Wherein, show heat dissipation mouth and cavity;

[0025] Figure 6 It is Figure 5 The local enlarged view of place A in the middle;Wherein, show fixed groove and sealing groove.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] Electric energy meter 1;

[0028] Shell 10;

[0029] The shell body 100; the cavity 110; the heat dissipation opening 120; the first flow guide groove 130; the fixing groove 140; the second flow guide groove 150; the third flow guide groove 160; the first groove section 161; the second groove section 162; the third groove section 163; the fourth groove section 164; the water blocking rib 170; the sealing groove 180;

[0030] The heat dissipation part 20;

[0031] The fixing part 30.

[0032] The purposes, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] An electric energy meter refers to a terminal device specially used in a substation or a power distribution system in a power system. The electric energy meter is used for data acquisition, monitoring, control and communication functions, and can realize real-time monitoring and management of power equipment. The electric energy meter requires that, under the condition that the main control processor runs at a main frequency of not less than 1GHz and the load rate is not less than 50%, the environmental temperature is 70 DEG C, and the continuous working time is 6h, the maximum junction temperature of the main control processor should not exceed 100 DEG C, that is, all functions meet the requirements. Therefore, the shell of the electric energy meter needs to be provided with a heat dissipation opening for heat dissipation of the main control core board. In the prior art, the shell of the electric energy meter is provided with a fixing groove for stable assembly and disassembly of the electric energy meter, but rainwater can gather in the fixing groove and flow to the heat dissipation opening, resulting in water ingress of the electric energy meter, that is, the existing electric energy meter has poor waterproof performance.

[0035] Therefore, the utility model discloses a first aspect embodiment to propose a kind of shell 10, shell 10 is used in electric energy meter 1.It can be understood, electric energy meter 1 includes control board and sensor.Control board can carry out data processing, data acquisition and display control etc..Sensor can measure voltage and current. Figures 1 to 6 The shell 10 of the embodiment of the present application will be introduced below with reference to

[0036] With reference to Figure 2 And Figure 5The specific structure of the shell body 100 will be described below. The shell body 100 defines a cavity 110 and a heat dissipation port 120. The cavity 110 can accommodate components such as a control board and a sensor. The heat dissipation port 120 can be in communication with the cavity 110, that is, the control board and other components in the cavity 110 can be heat dissipated through the heat dissipation port 120. The specific structure of the cavity 110 and the heat dissipation port 120 can be determined according to actual conditions. It can be understood that the heat dissipation port 120 can be arranged on the side of the shell body 100 away from the cavity 110. Referring to Figure 2 The heat dissipation port 120 can be arranged on the right side of the shell body 100.

[0037] Referring to Figures 1 to 3 The specific fixing arrangement of the shell body 100 will be described below. The shell body 100 includes a fixing groove 140, which is used to fix the shell body 100, that is, the electric energy meter 1 can be fixed at a target position through the fixing groove 140. It can be understood that the fixing groove 140 can be provided with a fixing part 30, which can be a hook or a locking member, and the specific fixing structure of the fixing part 30 can be determined according to actual conditions. It can be understood that the fixing groove 140 and the heat dissipation port 120 can be arranged on the same side wall of the shell body 100. In order to facilitate the description and understanding of the relative arrangement position of the fixing groove 140 and the heat dissipation port 120, the upper and lower relative positions are defined, and the fixing groove 140 is arranged above the heat dissipation port 120. It should be noted that the upper and lower positions mentioned in the embodiments of the present application are based on the electric energy meter 1 in the working state as the reference, and the reference in the following text is the same as this. Referring to Figure 3 That is, the fixing groove 140 is arranged above the heat dissipation port 120.

[0038] Referring to Figure 3 and Figure 4 The flow guide arrangement of the shell body 100 will be described below. The shell body 100 includes a first flow guide groove 130, which is used to guide water. Specifically, the first flow guide groove 130 can be arranged below the fixing groove 140. It should be noted that the first flow guide groove 130 can be in communication with the fixing groove 140 and can guide the water in the fixing groove 140 out of the shell body 100, that is, the accumulation of water in the fixing groove 140 and the flow of water to the heat dissipation port 120 can be inhibited.

[0039] The utility model discloses a shell 10 is used for electric energy meter 1. The shell 10 includes shell main body 100. Shell main body 100 defines the cavity 110 and the heat dissipation mouth 120 with the cavity 110 conduction. The outside of shell main body 100 is equipped with fixed groove 140, and fixed groove 140 is used for fixing shell 10, and fixed groove 140 is located the upper of heat dissipation mouth 120 and can realize the stable installation of shell 10. In the prior art, rainwater can gather in fixed groove and flow to heat dissipation mouth and cause electric energy meter to appear the situation of water inlet, that is, the waterproof performance of the prior electric energy meter is poor. The shell main body 100 of the scheme includes the first flow guide groove 130 in communication with the fixed groove 140, and the first flow guide groove 130 can guide the water in fixed groove 140 to export to the outside of shell main body 100, that is, the scheme can dredge the water in fixed groove 140, effectively suppress the water flow in fixed groove 140 to heat dissipation mouth 120 and cause short circuit or other electrical fault, improve the waterproof performance of electric energy meter 1 and guarantee its service life.

[0040] Referring to Figure 3 And Figure 4 , the following describes the flow guide setting of the shell main body 100 of some embodiments. The shell main body 100 includes a second flow guide groove 150 for guiding water. The structure of the second flow guide groove 150 can be different from that of the first flow guide groove 130, and the specific structure of the second flow guide groove 150 can be determined according to actual conditions. It can be understood that the second flow guide groove 150 can be arranged on the same side wall of the shell main body 100 as the first flow guide groove 130, and referring to Figure 2 , the second flow guide groove 150 and the first flow guide groove 130 can both be arranged on the right side wall of the shell main body 100. It should be noted that the second flow guide groove 150 is arranged above the fixed groove 140.

[0041] The second flow guide groove 150 is arranged around the heat dissipation mouth 120, and the surrounding angle range of the second flow guide groove 150 around the heat dissipation mouth 120 can be determined according to actual conditions. The second flow guide groove 150 can dredge the water above it to the outside of the shell main body 100 to prevent the water on the shell main body 100 from entering the heat dissipation mouth 120 and causing water ingress. It can be understood that the second flow guide groove 150 can be arranged on the outside of the shell main body 100. The second flow guide groove 150 of the scheme can suppress the water on the shell main body 100 from flowing to the heat dissipation mouth 120, effectively improving the waterproof performance of the shell 10.

[0042] It should be noted that in some embodiments, the second flow guide groove 150 can be in communication with the fixed groove 140, because the second flow guide groove 150 is arranged above the fixed groove 140, that is, part of the water in the second flow guide groove 150 can flow to the fixed groove 140 and be guided out of the shell main body 100 through the first flow guide groove 130, thereby ensuring the waterproof performance of the shell main body 100. In other embodiments, the second flow guide groove 150 can also be arranged separately from the fixed groove 140. The relative arrangement of the second flow guide groove 150 and the fixed groove 140 can be determined according to actual conditions. Some embodiments of the present application are described by way of example with the second flow guide groove 150 in communication with the fixed groove 140.

[0043] Referring to Figure 6 , the specific shape and structure of the first flow guide groove 130 and the second flow guide groove 150 will be described below. In some embodiments, the first flow guide groove 130 can be a U-shaped groove. In other embodiments, the first flow guide groove 130 can also be a quadrilateral groove. In other embodiments, the first flow guide groove 130 can also be an inverted trapezoidal groove. The specific shape of the first flow guide groove 130 can be determined according to actual conditions. Some embodiments of the present application are described by way of example with the first flow guide groove 130 being a quadrilateral groove. It can be understood that the shape of the second flow guide groove 150 can be the same as or different from that of the first flow guide groove 130. Some embodiments of the present application are described by way of example with the shape of the second flow guide groove 150 being a U-shaped groove. Furthermore, the opening area of the first flow guide groove 130 can be greater than that of the second flow guide groove 150, so that the water in the fixed groove 140 can be quickly guided out through the first flow guide groove 130, thereby ensuring the water guiding efficiency.

[0044] Referring to Figure 4 , the specific arrangement of the third flow guide groove 160 will be described below. In some embodiments, the shell main body 100 further comprises a third flow guide groove 160. The structure of the third flow guide groove 160 can be the same as or different from that of the second flow guide groove 150. Some embodiments of the present application are described by way of example with the second flow guide groove 150 being a U-shaped groove and the third flow guide groove 160 being a square groove. The third flow guide groove 160 can be arranged between the second flow guide groove 150 and the heat dissipation opening 120. The third flow guide groove 160 can be arranged around the heat dissipation opening 120. The specific surrounding angle range of the third flow guide groove 160 around the heat dissipation opening 120 can be determined according to actual conditions. It can be understood that the third flow guide groove 160 can be arranged adjacent to the heat dissipation opening 120.

[0045] The third flow guide groove 160 of the present scheme can guide the water above it out of the shell main body 100, that is, it can effectively prevent the water between the second flow guide groove 150 and the third flow guide groove 160 from flowing to the heat dissipation opening 120, thereby causing short circuit or other electrical faults, optimizing the water flow path of the shell 10, and improving the waterproof performance of the electric energy meter 1.

[0046] It should be noted that in some embodiments, the shell body 100 further comprises a fourth flow guide groove, which can have the same structure as the first flow guide groove 130 or a different structure. Specifically, the fourth flow guide groove can be a square groove, a U-shaped groove, or an inverted trapezoidal groove, etc. It can be understood that the fourth flow guide groove can be arranged between the second flow guide groove 150 and the third flow guide groove 160, and can be arranged around the heat dissipation opening 120. The fourth flow guide groove of the present scheme can guide the water above it out of the shell body 100, that is, it can effectively prevent the water flow between the second flow guide groove 150 and the fourth flow guide groove from flowing to the third flow guide groove 160 and then to the heat dissipation opening 120, causing short circuit or other electrical faults, optimizing the water flow path on the shell body 10, and improving the waterproof performance of the electric energy meter 1.

[0047] Referring to Figures 2 to 6 , the relative arrangement of the third flow guide groove 160 and the first flow guide groove 130 will be described below. In some embodiments, the third flow guide groove 160 is connected to the first flow guide groove 130. It should be noted that the connection structure between the third flow guide groove 160 and the first flow guide groove 130 can adopt a right-angle connection or a circular arc transition, etc., that is, it can reduce water flow resistance and improve drainage efficiency.

[0048] The specific connection position of the third flow guide groove 160 and the first flow guide groove 130 will be described below. The third flow guide groove 160 can be connected to the side of the first flow guide groove 130 away from the fixed groove 140. Referring to Figure 3 , the second flow guide groove 150 can be connected to the upper side of the fixed groove 140, and the third flow guide groove 160 can be connected to the lower side of the fixed groove 140. The third flow guide groove 160 can guide the water in the first flow guide groove 130 out of the shell body 100. Therefore, the water in the fixed groove 140 can flow from the first flow guide groove 130 to the third flow guide groove 160 and be guided out of the shell body 100 through the third flow guide groove 160, that is, the first flow guide groove 130 can share part of the groove section with the third flow guide groove 160. The present scheme can effectively save the slot volume of the shell body 100, reduce the processing cost, and ensure the structural strength of the shell body 100, while ensuring that the flow guide groove has excellent flow guiding effect.

[0049] It should be noted that in some embodiments, the third flow guide groove 160 can be arranged around the heat dissipation opening 120. In other embodiments, the third flow guide groove 160 can also be arranged only within a small angle (less than or equal to 180°) range around the heat dissipation opening 120. Some embodiments of the present application take the third flow guide groove 160 arranged around the heat dissipation opening 120 as an example for description. The present scheme can ensure the flow guiding effect of the third flow guide groove 160 on the water around the heat dissipation opening 120, and ensure the waterproof performance of the electric energy meter 1.

[0050] Referring to Figure 4 , the specific structure of the third flow guide groove 160 of some embodiments will be described below. In the transverse direction perpendicular to the axis direction of the heat dissipation opening 120, referring toFigure 4 In the left-right direction along the heat dissipation opening 120, the third flow guide groove 160 includes oppositely arranged first and second groove sections 161 and 162. In some embodiments, the left groove section is the first groove section 161, and the right groove section is the second groove section 162. It should be understood that the first groove section 161 can have the same extension length as the second groove section 162.

[0051] It should be noted that in some embodiments, the first groove section 161 can have the same structure as the second groove section 162. In other embodiments, the first groove section 161 can have a different structure from the second groove section 162. In some embodiments, the first groove section 161 has the same structure as the second groove section 162. It should be understood that the first groove section 161 can be in communication with the second groove section 162, and water in the first groove section 161 and the second groove section 162 can be guided out of the shell main body 100, i.e., water on the shell main body 100 can be discharged from multiple directions, which can enhance the water guiding effect of the third flow guide groove 160.

[0052] Referring to Figure 4 , the specific connection of the first and second groove sections 161 and 162 with the first flow guide groove 130 will be described below. In some embodiments, the first groove section 161 can be in communication with the side of the first flow guide groove 130 away from the fixing groove 140. In other embodiments, the second groove section 162 can be in communication with the side of the first flow guide groove 130 away from the fixing groove 140. In other embodiments, the side of the first flow guide groove 130 away from the fixing groove 140 is in communication with both the first groove section 161 and the second groove section 162. The specific arrangement can be determined according to actual conditions. In some embodiments, the first flow guide groove 130 is in communication with the first groove section 161 and the second groove section 162. This scheme can guide water out of the shell 10 through the first and second groove sections 161 and 162, thereby ensuring the water guiding efficiency.

[0053] Referring to Figure 4 , the specific structure of the third flow guide groove 160 in some embodiments will be described below. In the vertical direction perpendicular to the axis of the heat dissipation opening 120, the first groove section 161 includes a third groove section 163 located on the side of the heat dissipation opening 120 away from the fixing groove 140. The second groove section 162 includes a fourth groove section 164 located on the side of the heat dissipation opening 120 away from the fixing groove 140. Referring to Figure 4 In the up-down direction along the heat dissipation opening 120, the lower side groove section of the first groove section 161 is the third groove section 163, and the lower side groove section of the second groove section 162 is the fourth groove section 164.

[0054] It should be noted that in some embodiments, the third groove segment 163 can be in communication with the fourth groove segment 164. In other embodiments, the third groove segment 163 can also be spaced from the fourth groove segment 164. Some embodiments of the present application are described by way of example with the third groove segment 163 in communication with the fourth groove segment 164. The third groove segment 163 of the present solution is in communication with the fourth groove segment 164, that is, the groove width of this part of the groove segment can be increased. Therefore, the present solution can effectively improve the water guiding efficiency of the groove body and guarantee the water guiding effect.

[0055] With reference to Figure 6 , the relative arrangement of the fixed groove 140 and the first flow guide groove 130 will be described below. In some embodiments, the groove depth of the fixed groove 140 is D1, and the groove depth of the first flow guide groove 130 is D2. Wherein, D1 and D2 satisfy: D1>D2, that is, there is a depth difference between the first flow guide groove 130 and the fixed groove 140. The present solution can adapt to the corresponding fixed structure on the basis of the first flow guide groove 130 having good flow guiding effect, so that the fixed part 30 can be stably fixed in the fixed groove 140, guaranteeing the stability of the electric energy meter 1.

[0056] With reference to Figure 6 , the relative arrangement of the fixed groove 140 and the third flow guide groove 160 will be described below. In some embodiments, the groove depth of the fixed groove 140 is D1, and the groove depth of the third flow guide groove 160 is D3. Wherein, D1 and D3 satisfy: D1>D3, that is, there is a depth difference between the third flow guide groove 160 and the fixed groove 140. The present solution can adapt to the corresponding fixed structure on the basis of the third flow guide groove 160 having good flow guiding effect, so that the fixed part 30 can be stably fixed in the fixed groove 140, guaranteeing the stability of the electric energy meter 1.

[0057] It should be noted that in some embodiments, the depth of the first flow guide groove 130 can be equal to that of the third flow guide groove 160. In other embodiments, the depth of the third flow guide groove 160 can also be greater or smaller than that of the first flow guide groove 130. The relative depth arrangement of the first flow guide groove 130 and the third flow guide groove 160 can be determined according to actual conditions. Some embodiments of the present application are described by way of example with the depth of the first flow guide groove 130 being equal to that of the third flow guide groove 160.

[0058] With reference to Figure 3 and Figure 6In some embodiments, the shell body 100 comprises a water-blocking rib 170, which can be arranged between the third flow guide groove 160 and the heat dissipation opening 120. The water-blocking rib 170 can be arranged around the heat dissipation opening 120. Specifically, in some embodiments, the water-blocking rib 170 can be arranged only within a small angle range around the heat dissipation opening 120. In other embodiments, the water-blocking rib 170 can be arranged around the heat dissipation opening 120. Some embodiments of the present application are described by taking the water-blocking rib 170 arranged around the heat dissipation opening 120 as an example. The present solution can guarantee the water flow guiding effect of the water-blocking rib 170 on the water body around the heat dissipation opening 120, and guarantee the waterproof performance of the electric energy meter 1.

[0059] It should be noted that, in some embodiments, the water-blocking rib 170 can define the groove side wall of the third flow guide groove 160, i.e., the water-blocking rib 170 can be connected with the third flow guide groove 160. In other embodiments, the water-blocking rib 170 can also be spaced apart from the third flow guide groove 160, and the specific arrangement can be determined according to the actual situation. Some embodiments of the present application are described by taking the water-blocking rib 170 connected with the third flow guide groove 160 as an example. The present solution can increase the groove depth of the third flow guide groove 160, and improve the waterproof effect of the electric energy meter 1.

[0060] Referring to Figure 4 and Figure 6 In some embodiments, the shell body 100 comprises a sealing groove 180, which can be arranged between the heat dissipation opening 120 and the water-blocking rib 170. The sealing groove 180 can be arranged around the heat dissipation opening 120. Specifically, in some embodiments, the sealing groove 180 can be arranged only within a small angle range around the heat dissipation opening 120. In other embodiments, the sealing groove 180 can be arranged around the heat dissipation opening 120. Some embodiments of the present application are described by taking the sealing groove 180 arranged around the heat dissipation opening 120 as an example. It should be noted that a sealing ring can be arranged in the sealing groove 180 for waterproofing. The present solution can effectively prevent part of the water body from entering the heat dissipation opening 120 through the water-blocking rib 170, guarantee the water flow guiding effect, and improve the waterproof performance of the electric energy meter 1. It should be noted that, as viewed along the axis direction parallel to the heat dissipation opening 120, the sealing groove 180 is located on the side of the water-blocking rib 170 facing the cavity 110, referring to Figure 6 the orientation, i.e., the arrangement position of the sealing groove 180 can be lower than that of the water-blocking rib 170. The present solution can further improve the waterproof performance of the shell body 100.

[0061] Referring to Figure 1 and Figure 2The utility model second aspect embodiment proposes a kind of electric energy meter 1, and electric energy meter 1 includes the shell 10 of above-mentioned embodiment.The shell 10 of scheme includes shell main body 100.Shell main body 100 defines cavity 110 and the heat dissipation port 120 that communicate with cavity 110.Shell main body 100 outside is equipped with fixed groove 140, and fixed groove 140 is used to fix shell 10, and fixed groove 140 is located above heat dissipation port 120 and can realize the stable installation of shell 10.Drainage groove 130 is communicated with fixed groove 140 in the shell main body 100 of scheme, and the water in fixed groove 140 can be guided to the outside of shell main body 100 by first, i.e., the water in fixed groove 140 can be dredged by the scheme, effectively inhibit the water in fixed groove 140 from flowing to heat dissipation port 120 to cause short circuit or other electrical fault, improve the waterproof performance of electric energy meter 1 and guarantee service life.

[0062] Refer to Figure 1 And Figure 2 In some embodiments, electric energy meter 1 includes control panel and heat dissipation part 20.Control panel can process data, collect data and display control etc.Control panel can be arranged in cavity 110.Heat dissipation part 20 can be arranged in heat dissipation port 120.Specifically, in some embodiments, heat dissipation part 20 includes heat dissipation plate, and heat dissipation plate can be arranged in heat dissipation port 120 and abut with control panel, i.e., the heat of control panel can be guided to the outside of shell main body 100, to realize the heat dissipation operation of electric energy meter 1, and the specific setting and structure of heat dissipation part 20 can be determined according to actual situation.

[0063] It should be noted that shell 10 can be made of insulating, flame-retardant, anti-ultraviolet environmental protection material.Specifically, the material of shell 10 can be plastic material.Heat dissipation part 20 can be made of metal material with excellent heat conductivity.Specifically, heat dissipation part 20 can be aluminum plate material.

[0064] It should be noted that if the embodiment of the utility model relates to directional indication (such as up, down, left, right, front, back …), the directional indication is only used to explain the relative position relationship, movement condition etc. between components in a certain specific posture, if the specific posture changes, the directional indication also changes accordingly.When introducing direction reference in specific embodiment, if there is no special limitation that the direction is unidirectional, the direction can be unidirectional, also can be bidirectional (two parallel and opposite directions), whether it is unidirectional or bidirectional is based on that ordinary skilled in the art can realize.In the case of bidirectional direction reference, two different embodiments in parallel should be considered.

[0065] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes include "A and / or B", including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of the utility model claimed by the utility model.

[0066] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model is included in the patent protection range of the utility model.

Claims

1. A housing for an electricity meter, characterised in that, The shell comprises a shell body defining a containing cavity and a heat dissipation opening in communication with the containing cavity, an outer side of the shell body is provided with a fixing groove for fixing the shell, the fixing groove is located above the heat dissipation opening, and a first flow guide groove is located below the fixing groove and in communication with the fixing groove, the first flow guide groove is used for guiding water in the fixing groove out of the shell body.

2. The shell of claim 1, wherein, the shell body comprises a second flow guide groove located above the fixing groove, the second flow guide groove is arranged around the heat dissipation opening, and the second flow guide groove is used for guiding water above the second flow guide groove out of the shell body.

3. The shell of claim 1, wherein, the shell body comprises a third flow guide groove located between the fixing groove and the heat dissipation opening, the third flow guide groove is arranged around the heat dissipation opening, and the third flow guide groove is used for guiding water above the third flow guide groove out of the shell body.

4. The shell of claim 3, wherein, the third flow guide groove is in communication with the first flow guide groove to guide water in the first flow guide groove out of the shell body, and the third flow guide groove is arranged around the heat dissipation opening.

5. The shell of claim 3, wherein, in a transverse direction perpendicular to an axis direction of the heat dissipation opening, the third flow guide groove comprises oppositely arranged first and second groove segments, water in the first and second groove segments can be guided out of the shell body, and the first groove segment is in communication with the first flow guide groove, and / or the second groove segment is in communication with the first flow guide groove.

6. The shell of claim 5, wherein, in a vertical direction perpendicular to the axis direction of the heat dissipation opening, the first groove segment comprises a third groove segment located below the heat dissipation opening, the second groove segment comprises a fourth groove segment located below the heat dissipation opening, and the third groove segment is in communication with the fourth groove segment.

7. The shell of claim 3, wherein, a groove depth of the fixing groove is D1, a groove depth of the first flow guide groove is D2, and D1 and D2 satisfy D1 > D2; and / or a groove depth of the fixing groove is D1, a groove depth of the third flow guide groove is D3, and D1 and D3 satisfy D1 > D3.

8. The shell of claim 3, wherein, the shell body comprises a water blocking rib located between the third flow guide groove and the heat dissipation opening, the water blocking rib is arranged around the heat dissipation opening, and the water blocking rib defines a groove side wall of the third flow guide groove.

9. The shell of claim 8, wherein, the shell body comprises a sealing groove located between the heat dissipation opening and the water blocking rib, the sealing groove is arranged around the heat dissipation opening, and in a direction parallel to an axis direction of the heat dissipation opening, the sealing groove is located on a side of the water blocking rib facing the containing cavity. The shell as claimed in any one of claims 1-9, further comprising a control board located in the containing cavity and a heat dissipation portion provided at the heat dissipation opening.

10. An electric energy meter, characterized by ​

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