Power socket
By adopting multiple sets of clamping plate components and thermal magnetic tripping systems in the power socket, the problems of insufficient clamping force and insufficient safety protection are solved, stable electrical contact and high safety are achieved, and the service life of the socket is extended and the service life of the socket is reduced. The risk of failure is
Patent Information
- Application Number
- CN202420917741.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The insufficient clamping force of existing power sockets leads to instability in electrical contact, frequent plugging and unplugging leads to reduced clamping force, increased temperature, affecting service life, and lack of effective safety protection measures, which poses fire and safety hazards.
By designing multiple sets of clamping sheet assemblies, by providing at least two sets of clamping sheet assemblies composed of the first and second reeds on the plug-in structure, a gradually reduced clamping port is formed and combined with a thermal magnetic tripping system. and current sensing transformers to achieve overload and short circuit protection.
It enhances the clamping force and contact stability of the socket, reduces temperature rise and power loss, improves the service life and safety of the socket, ensures circuit breakage in the event of a fault, and improves safety.
Smart Images
Figure CN222191349U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sockets, in particular to a power socket. Background Art
[0002] With the progress of society, people's living standards are constantly improving, and people are increasingly inseparable from various electrical appliances. When using electrical appliances, power sockets or strips are necessary. The existing power sockets are mainly composed of a shell, a socket structure arranged in the shell, and a wiring terminal connected to the socket structure. The socket structure is provided with at least one plug clamping part, which is composed of two clips arranged relatively on the socket structure. The two clips are used to clamp the pin on the contact plug, which plays a role of fixing and conducting electricity. However, during use, firstly, when the plug is inserted between the two clips, the two clips will be squeezed to expand toward the outer shape. Since the clamping force of the two clips is relatively small, they are prone to elastic fatigue after frequent plugging and unplugging, resulting in a smaller clamping force of the two clips, a reduction in the effective contact surface, and unstable electrical contact. There is a phenomenon of temperature rise when working with large current, which affects the service life of the socket. Excessive working temperature rise is easy to cause fire; secondly, the existing power socket lacks reliable and safe means to cut off the circuit when circuit faults such as short circuit, overload, and undervoltage occur, making it difficult to ensure line safety, and there are safety hazards. Utility Model Content
[0003] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the clamping force of the socket structure in the prior art is relatively small, the effective contact surface is small and small, resulting in unstable electrical contact, increased temperature when working with large currents, affecting the service life of the socket and the safety of personal and property.
[0004] In order to solve the above technical problems, the utility model provides a power socket, including a shell and a plurality of socket structures arranged in the shell, the socket structure including a conductive strip and a plurality of socket strips extending and connected to one side or both sides of the conductive strip, each socket strip including a first contact portion and a second contact portion formed by bending and extending from the first contact portion and opposite to the first contact portion, the first contact portion being bent on its side to form at least two first springs distributed at intervals, the second contact portion being bent on its side to form at least two second springs corresponding to the first spring, at least two groups of clamping sheet assemblies are formed by the at least two first springs and the at least two second springs facing each other in pairs, and the two groups of clamping sheet assemblies have clamping openings formed between the two first springs and the two second springs and whose diameters gradually decrease from the outside to the inside.
[0005] As a preferred solution, each group of clamping sheet assemblies includes two engaging portions which are respectively protruded toward each other and arranged on the first spring sheet and the second spring sheet, and two guiding inclined portions which extend obliquely and are connected to the upper sides of the two engaging portions.
[0006] As a preferred solution, two first springs and two second springs are respectively arranged in parallel on the first contact piece portion and the second contact piece portion, and the first spring and the second spring are respectively in a V-shaped structure.
[0007] As a preferred solution, the clamping mouth is in a trumpet shape, which includes a narrow mouth portion formed between two engaging portions, and a wide mouth portion formed between two guiding inclined portions and connected to the top of the narrow mouth portion.
[0008] As a preferred solution, the second contact portion is formed by bending one end of the first contact portion, and the two are connected to form a U-shaped groove connected to the bottom of the clamping port, the opening direction of the U-shaped groove is arranged perpendicular to the opening direction of the clamping port, and the socket strip, the first reed and the second reed on the socket structure are integrally formed by metal copper sheets through sheet metal processing.
[0009] As a preferred solution, the shell is provided with a plurality of socket units, and the plurality of socket structures include L-pole sockets, N-pole sockets and E-pole sockets that are staggered and extend between the plurality of socket units, and the L-pole sockets, N-pole sockets and E-pole sockets are respectively provided with two groups of clamping sheet assemblies corresponding to each socket unit.
[0010] As a preferred solution, it also includes a power switch and a thermal-magnetic tripping system arranged on the shell, the power switch is connected to the external power line, the L-pole socket and the N-pole socket are connected to the power switch through the L-pole line and the N-pole line respectively, and a contact structure for turning on or off the L-pole line is arranged on the L-pole line, and the contact structure has a closed state for turning on the L-pole line and an open state for turning off the L-pole line. When the thermal-magnetic tripping system is triggered, the contact structure is driven to act to disconnect the L-pole line.
[0011] As a preferred embodiment, the thermal-magnetic tripping system includes an overload tripping mechanism, which includes two connecting plates relatively connected to the L-pole line, and a bimetallic strip with one end fixed on one of the connecting plates, the other end of the bimetallic strip extending to the other connecting plate, and the contact structure includes a moving contact arranged on the other end of the bimetallic strip, and a static contact correspondingly arranged on the other connecting plate.
[0012] As a preferred embodiment, the thermal magnetic tripping system includes a control circuit board arranged in a shell, and an electromagnetic release and a current detection transformer arranged on the control circuit board, the electromagnetic release includes a top rod arranged opposite to the bimetallic strip, the L-pole line and the N-pole line both pass through the current detection transformer and are electrically connected to the control circuit board respectively, and when the electromagnetic tripping device is triggered, the top rod is driven to move toward a side close to the bimetallic strip, so that the bimetallic strip drives the moving contact and the static contact to separate under the push of the top rod.
[0013] As a preferred solution, two opposite limit bosses are provided in the shell, and the two limit bosses are respectively provided with mounting grooves for positioning and clamping the two connecting plates. The push rod extends into the gap between the two limit bosses, and the bimetallic strip extends and is connected between the two limit bosses and is located on the moving path of the push rod.
[0014] Compared with the prior art, the technical solution of the utility model has the following advantages:
[0015] 1. In the power socket provided by the utility model, a plurality of socket strips are extended outwardly on one side or both sides of the conductive strip according to the socket structure, and each socket strip has at least two groups of clamping sheet assemblies for clamping the plug, and the two groups of clamping sheet assemblies are composed of two first springs and two second springs arranged on the first contact piece part and the second contact piece part, which are opposite to each other, and a clamping opening with a diameter gradually decreasing from the outside to the inside is formed between the two first springs and the two second springs, so as to increase the opening range, facilitate guiding the plug to be accurately inserted into the two groups of clamping sheet assemblies through the clamping opening, and be clamped by the first springs and the second springs opposite to each other, The socket structure adopts this structural design. By providing at least two groups of clamping sheet assemblies on each socket strip, the clamping force can be increased to ensure that multiple spring sheets have strong elastic pressure. Even if contact failure occurs between one group of clamping sheet assemblies and the plug pin, the other group of clamping sheet assemblies can still maintain reliable contact with the plug pin, thereby ensuring the stability of electrical contact and meeting the user's needs for frequent plugging and unplugging of the plug. At the same time, this design increases the contact surface, which is beneficial to reducing contact resistance and temperature rise. In this way, the thickness of the socket strip can be made thinner while the current-carrying area is increased, thereby reducing costs and increasing the service life of the socket structure and the socket.
[0016] 2. In the power socket provided by the utility model, the first spring sheet and the second spring sheet are respectively in a V-shaped structure, and each group of clamping sheet assemblies includes two bite parts which are respectively protruded toward each other and arranged on the first spring sheet and the second spring sheet, and two guide inclined parts which are obliquely extended and connected to the upper sides of the two bite parts, and the two bite parts and the two guide inclined parts constitute a clamping opening in the shape of a trumpet. This structural arrangement is conducive to guiding the pin to be smoothly and accurately inserted into the clamping opening through the guide inclined parts, which can reduce the insertion resistance, and the two bite parts play a clamping and fixing role on the pin in the clamping opening. Because the first spring sheet and the second spring sheet will continue to apply elastic pressure to the two bite parts to clamp the pin toward each other when they are squeezed and deformed, such a design not only increases the clamping force of the socket itself, but also increases the effective contact surface, thereby greatly reducing power loss, reducing heat generation, ensuring the reliability of electrical connection, improving the safety of socket use, and at the same time obtaining a better plugging and unplugging feel.
[0017] 3. In the power socket provided by the utility model, the overload release mechanism includes two connecting pieces arranged on the L-pole circuit, and a bimetallic piece fixed on one of the connecting pieces, and a static contact is arranged on the other connecting piece. By arranging a moving contact that cooperates with the static contact on the other end of the bimetallic piece, when an overload fault occurs in the circuit, the bimetallic piece is overloaded and heated to bend toward the side facing away from the static contact, thereby driving the moving contact to separate from the static contact to disconnect the L-pole circuit, thereby realizing overload protection for the socket and electrical equipment.
[0018] 4. In the power socket provided by the utility model, the thermal magnetic release system also includes an electromagnetic release and a current detection transformer arranged on the control circuit board. The top rod of the electromagnetic release is arranged opposite to the bimetallic strip. When the control circuit board detects a short circuit or an over-voltage or under-voltage fault in the circuit, the electromagnetic release will be triggered to drive the top rod to move toward the side close to the bimetallic strip, so that the bimetallic strip drives the moving contact and the static contact to separate under the push of the top rod, thereby disconnecting the power supply of the L-pole circuit, so as to achieve the effect of short-circuit protection and over-voltage or under-voltage protection for the socket and electrical equipment, greatly improving the safety factor of the socket. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 A schematic diagram of the structure of the power socket provided by the utility model;
[0021] Figure 2 A structural schematic diagram of the plug-in structure provided by the utility model;
[0022] Figure 3 A partially enlarged structural schematic diagram of the plug-in structure provided by the utility model;
[0023] Figure 4 for Figure 1 A partial structural diagram of a power socket is shown, particularly showing a thermal magnetic tripping system;
[0024] Figure 5 It is a structural schematic diagram of the overload release mechanism of the utility model.
[0025] Explanation of the reference numerals: 1. Shell; 2. Socket structure; 21. Conductive strip; 22. Socket strip; 221. First contact piece; 222. Second contact piece; 23. Clamping piece assembly; 231. First spring piece; 232. Second spring piece; 24. Clamping opening; 241. Clamping protrusion; 242. Guide slope; 3. Power switch; 31. L-pole circuit; 32. N-pole circuit; 4. Overload release mechanism; 41. Connecting piece; 42. Bimetallic strip; 5. Control circuit board; 6. Electromagnetic release; 61. Push rod; 7. Current detection transformer; 8. Limiting boss; 91. Moving contact; 92. Static contact. DETAILED DESCRIPTION
[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] In the description of the present invention, it should be noted that the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] Example
[0030] This embodiment provides Figure 1-5The power socket comprises a housing 1 and a plurality of socket structures 2 arranged in the housing 1, and a plurality of socket units are arranged on the housing 1, each socket unit is composed of a plurality of sockets, and the socket structure 2 extends to the plurality of socket units for connecting the plug pins of the plug, the socket structure 2 comprises a conductive strip 21, and a plurality of socket strips 22 extending and connected to one side or both sides of the conductive strip 21, each socket strip 22 comprises a first contact sheet 221, and a second contact sheet 221 formed by bending and extending the first contact sheet 221 and opposite to the first contact sheet 221. The first contact piece portion 221 is bent on its side to form at least two first spring pieces 231 distributed at intervals, and the second contact piece portion 222 is bent on its side to form at least two second spring pieces 232 corresponding to the first spring pieces 231. At least two groups of clamping piece assemblies 23 are formed by at least two first spring pieces 231 and at least two second spring pieces 232 facing each other in pairs. The two groups of clamping piece assemblies 23 have a clamping opening 24 formed between the two first spring pieces 231 and the two second spring pieces 232 and the diameter of which gradually decreases from the outside to the inside.
[0031] In the above embodiment, each plug strip 22 of the plug structure 2 has at least two groups of clamping sheet assemblies 23 for clamping the plug pin, and the two groups of clamping sheet assemblies 23 are composed of two first springs 231 and two second springs 232 arranged on the first contact piece portion 221 and the second contact piece portion 222, which are opposite to each other, and a clamping opening 24 with a diameter gradually decreasing from the outside to the inside is formed between the two first springs 231 and the two second springs 232, so as to increase the opening range, facilitate guiding the plug pin to be accurately inserted into the two groups of clamping sheet assemblies 23 through the clamping opening 24, and clamped by the first springs 231 and the second springs 232 opposite to each other, so as to adopt The socket structure 2 designed with this structure can increase the clamping force and ensure that the multiple springs have strong elastic pressure by providing at least two groups of clamping sheet assemblies 23 on each socket strip 22. Even if contact failure occurs between one group of clamping sheet assemblies and the plug pin, the other group of clamping sheet assemblies can still maintain reliable contact with the plug pin to ensure the stability of electrical contact and meet the user's needs for frequent plugging and unplugging of the plug. At the same time, this design increases the contact surface, which is beneficial to reducing contact resistance and temperature rise. In this way, the thickness of the socket strip can be made thinner under the premise of increasing the current-carrying area, thereby reducing costs and increasing the service life of the socket structure and the socket.
[0032] Combine the following Figure 2-3 The specific setting method of the clamping plate assembly is described in detail:
[0033] The two first spring pieces 231 and the two second spring pieces 232 are respectively arranged in parallel on the first contact piece portion 221 and the second contact piece portion 222, and the first spring piece 231 and the second spring piece 232 are respectively in a V-shaped structure. After being formed, such spring pieces have a large resilience, so that the plug pin inserted into the clamping opening 24 can contact two groups of opposite spring pieces at the same time, effectively increasing the contact area with the plug pin and the fixing effect, and realizing the close contact between the clamping piece assembly 23 and the plug pin. Further preferably, each group of clamping piece assemblies 23 designed in this way includes two bite parts that are respectively protruded toward each other and are arranged on the first spring piece 231 and the second spring piece 232, and two guide inclined portions 242 that extend obliquely and are connected to the upper sides of the two bite parts. Correspondingly, the clamping opening 24 is in a trumpet shape, which includes a narrow mouth portion formed between the two bite parts, and a narrow mouth portion formed between the two guide inclined portions. The wide mouth portion between 242 and connected to the top of the narrow mouth portion, that is, the diameter of the clamping mouth 24 is gradually narrowed from the wide mouth portion to the narrow mouth side, so that the plug pin of the plug is inserted into the narrow mouth portion and clamped by the two bite portions. This structural setting is conducive to guiding the plug pin to be smoothly and accurately inserted into the clamping mouth 24 through the guiding inclined portion 242, which can reduce the insertion resistance, and the two bite portions play a clamping and fixing role on the plug pin in the clamping mouth 24. Because the first spring leaf 231 and the second spring leaf 232 will continue to apply elastic pressure to the two bite portions to clamp the pin in opposite directions when they are squeezed and deformed, this design not only increases the clamping force of the socket itself, but also increases the effective contact surface, thereby greatly reducing power loss, reducing heat generation, ensuring the reliability of electrical connection, and improving the safety of socket use. At the same time, a better plugging and unplugging feel can be obtained, ensuring that the plug and the socket have a stable and reliable plugging and unplugging force.
[0034] like Figure 3 As shown, the second contact portion 222 is formed by bending one end of the first contact portion 221, and the two are connected to form a U-shaped groove connected to the bottom of the clamping opening 24, and the opening direction of the U-shaped groove is perpendicular to the opening direction of the clamping opening 24, so that the bolt is squeezed through the clamping opening 24 between the two spring leaves and enters the U-shaped groove, ensuring smooth and unobstructed insertion and removal between the bolt and the socket structure 2. The socket strip 22, the first spring leaf 231 and the second spring leaf 232 on the socket structure 2 are integrally formed by metal copper sheets through sheet metal processing. According to the shell 1, multiple socket units are provided, and the socket units include one or a combination of two sockets and three sockets. Specifically, in the power socket provided in this embodiment, multiple socket structures 2 include L-pole sockets, N-pole sockets and E-pole sockets that are staggered and extend between the multiple socket units. The L-pole sockets, N-pole sockets and E-pole sockets are respectively provided with two groups of clamping sheet assemblies 23 corresponding to each socket unit, that is, the clamping sheet assemblies 23 are correspondingly located under the sockets of each socket unit, so that the L-pole sockets, N-pole sockets and E-pole sockets are respectively in close contact with the pins for multi-faceted connection through the two groups of clamping sheet assemblies.
[0035] In order to improve the safety of the power socket, the power socket of this embodiment also includes a power switch 3 and a thermal magnetic tripping system arranged on the housing 1. The power switch 3 is connected to the external power line, and the L-pole socket and the N-pole socket are respectively connected to the power switch 3 through the L-pole line 31 and the N-pole line 32. It can be seen that the function of the power switch 3 is to control the on and off of the access power of the entire power socket. The L-pole line 31 is provided with a contact structure for conducting or disconnecting the L-pole line 31. The contact structure has a closed state for conducting the L-pole line 31 and an open state for disconnecting the L-pole line 31. The function of the thermal magnetic tripping system is to timely cut off the L-pole circuit of the power socket when the line has a fault such as overload, short circuit, over-voltage or under-voltage, that is, when the thermal magnetic tripping system is triggered, the contact structure is driven to act to disconnect the L-pole line 31, so that the closed state of the contact structure is switched to the open state to ensure the safety of the line and the equipment.
[0036] The following combination Figure 1 and Figure 4-5 Detailed description of the specific setting method of the thermal magnetic tripping system:
[0037] The thermal magnetic tripping system includes an overload tripping mechanism 4, which includes two connecting pieces 41 relatively connected to the L-pole line 31, and a bimetallic strip 42 with one end fixed on one of the connecting pieces 41, and the other end of the bimetallic strip 42 extends to the other connecting piece 41. The contact structure includes a moving contact 91 arranged on the other end of the bimetallic strip 42, and a static contact 92 correspondingly arranged on the other connecting piece 41, wherein the other end of the bimetallic strip 42 is a free end that can be bent by heat. The advantage of such a design is that when an overload fault occurs in the line, the free end of the bimetallic strip 42 is bent toward the side facing away from the static contact due to overload heat, thereby driving the moving contact 91 to separate from the static contact 92 to disconnect the L-pole line, thereby achieving overload protection for the socket and the line.
[0038] It is further preferred that the thermal magnetic tripping system includes a control circuit board arranged in the housing 1, and an electromagnetic release 6 and a current detection transformer 7 arranged on the control circuit board, the electromagnetic release 6 includes a push rod 61 arranged opposite to the bimetallic strip 42, the L-pole line 31 and the N-pole line 32 both pass through the current detection transformer 7 and are electrically connected to the control circuit board respectively, and the control circuit board can analyze and determine whether there are short circuits and over-voltage and under-voltage faults in the line according to the current information collected by the current detection transformer 7. This structural setting triggers the electromagnetic release 6 to act when the control circuit board detects that a short circuit or over-voltage or under-voltage fault occurs in the line. When the electromagnetic release 6 is triggered, the push rod 61 is driven to move toward the side close to the bimetallic strip 42, so that the bimetallic strip 42 drives the moving contact 91 to separate from the static contact 92 under the push of the push rod 61, thereby disconnecting the power supply of the L-pole line, so as to achieve the effect of short circuit protection and over-voltage and under-voltage protection for the socket and electrical equipment, thereby greatly improving the safety factor of the socket.
[0039] like Figure 5 As shown, two relative limiting bosses 8 are provided in the housing 1, and mounting grooves for positioning and clamping the two connecting pieces 41 are respectively provided on the two limiting bosses 8. The two limiting bosses 8 play a limiting installation role for the two connecting pieces 41 through the mounting grooves, and the installation is stable and reliable. The push rod 61 extends into the gap between the two limiting bosses 8, and the bimetallic strip 42 extends and is connected between the two limiting bosses 8 and is located on the moving path of the push rod 61. The electromagnetic release 6 is preferably a magnetic holding release. Such a reasonable design allows the bimetallic strip 42 to elastically deflect under the push of the push rod 61, thereby driving the moving contact 91 to separate from the static contact 92; therefore, after the line fault is cleared, only when the electromagnetic release 6 drives the push rod to reset and no longer supports the bimetallic strip 42, can the bimetallic strip 42 automatically and elastically reset to achieve closed contact between the moving contact and the static contact, thereby restoring the connection of the L-pole circuit.
[0040] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A power socket, comprising a housing (1) and a plurality of socket structures (2) arranged in the housing (1), characterized in that: The socket structure (2) comprises a conductive strip (21), and a plurality of socket strips (22) extending and connected to one side or both sides of the conductive strip (21), each socket strip (22) comprising a first contact sheet portion (221), and a second contact sheet portion (222) formed by bending and extending the first contact sheet portion (221) and opposite to the first contact sheet portion (221), the first contact sheet portion (221) being bent and formed on its side to form at least two first spring sheets (231) distributed at intervals, The second contact piece portion (222) is bent on its side to form at least two second reed pieces (232) corresponding to the first reed pieces (231), and at least two groups of clamping piece assemblies (23) are formed by the at least two first reed pieces (231) and the at least two second reed pieces (232) facing each other in pairs, and the two groups of clamping piece assemblies (23) have clamping openings (24) formed between the two first reed pieces (231) and the two second reed pieces (232) and the diameter of which gradually decreases from the outside to the inside.
2. A power socket according to claim 1, characterized in that: Each group of clamping sheet assemblies (23) comprises two engaging portions which are respectively protruded towards each other and arranged on the first spring sheet (231) and the second spring sheet (232), and two guiding inclined portions (242) which extend obliquely and are connected to the upper sides of the two engaging portions.
3. A power socket according to claim 2, characterized in that: The two first reeds (231) and the two second reeds (232) are respectively arranged in parallel on the first contact portion (221) and the second contact portion (222), and the first reeds (231) and the second reeds (232) are respectively in a V-shaped structure.
4. A power socket according to claim 3, characterized in that: The clamping opening (24) is in a trumpet shape, comprising a narrow opening portion formed between two engaging portions, and a wide opening portion formed between two guiding inclined portions (242) and connected to the upper portion of the narrow opening portion.
5. A power socket according to claim 4, characterized in that: The second contact piece portion (222) is formed by bending one end of the first contact piece portion (221), and the two are connected to form a U-shaped groove connected below the clamping opening (24), and the opening direction of the U-shaped groove is arranged perpendicular to the opening direction of the clamping opening.
6. A power socket according to claim 1, characterized in that: The housing (1) is provided with a plurality of socket units, and the plurality of socket structures (2) include L-pole sockets, N-pole sockets and E-pole sockets that are staggered and extend between the plurality of socket units, and the L-pole sockets, N-pole sockets and E-pole sockets are respectively provided with two groups of clamping sheet assemblies (23) corresponding to each socket unit.
7. A power socket according to any one of claims 1 to 6, characterized in that: The invention also comprises a power switch (3) and a thermal magnetic tripping system arranged on the housing (1); the power switch (3) is connected to an external power line; an L-pole socket and an N-pole socket are respectively connected to the power switch (3) via an L-pole line (31) and an N-pole line (32); a contact structure for conducting or disconnecting the L-pole line (31) is arranged on the L-pole line (31); the contact structure has a closed state for conducting the L-pole line (31) and an open state for disconnecting the L-pole line (31); when the thermal magnetic tripping system is triggered, the contact structure is driven to operate to disconnect the L-pole line (31).
8. A power socket according to claim 7, characterized in that: The thermal magnetic tripping system comprises an overload tripping mechanism (4), the overload tripping mechanism comprising two connecting pieces (41) relatively connected to an L-pole line (31), and a bimetallic piece (42) having one end fixed to one of the connecting pieces (41), the other end of the bimetallic piece (42) extending to the other connecting piece (41), and the contact structure comprising a moving contact (91) arranged on the other end of the bimetallic piece (42), and a stationary contact (92) correspondingly arranged on the other connecting piece (41).
9. A power socket according to claim 8, characterized in that: The thermal magnetic tripping system comprises a control circuit board arranged in a housing (1), and an electromagnetic tripping device (6) and a current detection transformer (7) arranged on the control circuit board. The electromagnetic tripping device (6) comprises a push rod (61) arranged opposite to the bimetallic strip (42). The L-pole line (31) and the N-pole line (32) both pass through the current detection transformer (7) and are respectively electrically connected to the control circuit board. When the electromagnetic tripping device (6) is triggered, the push rod (61) is driven to move toward a side close to the bimetallic strip (42), so that the bimetallic strip (42) drives the moving contact (91) to separate from the static contact (92) under the push of the push rod (61).
10. A power socket according to claim 9, characterized in that: Two opposing limiting bosses (8) are provided in the housing (1), and mounting slots for positioning and clamping two connecting pieces (41) are respectively provided on the two limiting bosses (8). The push rod (61) extends into the gap between the two limiting bosses (8), and the bimetallic strip (42) extends and is connected between the two limiting bosses (8) and is located on the moving path of the push rod (61).