Sampling module and circuit breaker combination

Abstract

The utility model discloses a sampling module and a circuit breaker combination. The sampling module comprises a module shell, a sampling piece, a sampling element and a lead, wherein one end of the sampling piece is a fixed part, and the fixed part is fixed with the module shell; the other end of the sampling piece is a contact part which extends out of the module shell and is clamped by a wiring screw of the circuit breaker; the contact part is provided with an avoiding groove, and the avoiding groove is used for a part of wiring screws to pass through. The sampling element is attached to the part, located in the module shell, of the sampling piece, and the sampling element is a temperature sampling piece and / or a voltage sampling piece; one end of the lead is located in the module shell and electrically connected with the sampling element, and the other end of the lead is located outside the module shell; the utility model has the characteristic of not occupying the space of the wiring hole.

Description

Technical Field

[0001] This application relates to the field of low-voltage electrical appliances and the field of miniature circuit breakers, and specifically to a sampling module and a circuit breaker combination. Background Art

[0002] In recent years, intelligent miniature circuit breakers have been developed on a large scale in the field of low-voltage circuit breakers. For example, such circuit breakers often have functions such as voltage sampling and temperature sampling.

[0003] There are many common voltage sampling and temperature sampling methods. One of them is to use an integrated circuit breaker, that is, a complete circuit breaker has these functions. For example, the structure disclosed in CN214254314U integrates these sampling functions such as voltage sampling, temperature sampling feedback, etc. into the entire circuit breaker. Of course, such an intelligent circuit breaker does have its own unique advantages. For example, the product looks like a whole, appears to be fully functional and grand, but it also brings a problem of too high cost. It cannot be compatible with the most common circuit breakers (only having the simplest overload protection, short-circuit protection, or even having leakage protection), or it is impossible to be modified on the most common circuit breakers, but a whole new mold for the circuit breaker needs to be opened separately.

[0004] Of course, there are also some circuit breakers that make the voltage sampling and temperature sampling into a module and assemble it on one side of the terminal of the circuit breaker. Although such a sampling module can be combined with the most common circuit breaker to achieve temperature and voltage sampling, its sampling piece can only be connected at the wiring hole of the circuit breaker (or inside the wiring frame), occupying too much space of the wiring hole and being not conducive to wiring, such as the structure disclosed in CN215644341U.

[0005] Therefore, how to more reasonably design a sampling module that does not occupy the space of the wiring hole and can cooperate with ordinary circuit breakers is obviously a problem worthy of consideration. Summary of the Utility Model

[0006] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and aims to provide a sampling module and a circuit breaker combination.

[0007] The present application provides: a sampling module, which includes a module housing, a sampling piece, a sampling element, and a lead wire; wherein, one end of the sampling piece is a fixing part, and the fixing part is fixed to the module housing; the other end of the sampling piece is a contact part, and the contact part extends out of the module housing for being clamped by a wiring screw of a circuit breaker; an avoidance groove is formed in the contact part for part of the wiring screw to pass through; the sampling element is attached to a part of the sampling piece located inside the module housing, and the sampling element is a temperature sampling piece and / or a voltage sampling piece; one end of the lead wire is located inside the module housing and is electrically connected to the sampling element, and the other end of the lead wire is located outside the module housing.

[0008] In some embodiments of the present application, a first fastener group is provided on the module housing, and the first fastener group is used for snap-connecting with the circuit breaker housing.

[0009] In some embodiments of the present application, the module housing has a first slot, and the fixing part is inserted into the first slot.

[0010] In some embodiments of the present application, the module housing includes a base and a cover plate; the base has a receiving cavity, the receiving cavity has an opening on the base, the cover plate is used to block the opening, and the connection position of the fixing part and the module housing is inside the receiving cavity; the first fastener group is provided on the cover plate, and the cover plate and the base are fixed by snap connection or screw connection or riveting or ultrasonic welding.

[0011] In some embodiments of the present application, a first slot is provided on the base, and a first through hole is formed on the cover plate; the fixing part is inserted into the first slot, and the contact part extends out of the module housing through the first through hole.

[0012] In some embodiments of the present application, a contact plate is formed on the module housing, the contact plate is located on one side of the first slot and extends beyond the first slot, and the contact plate is attached to the upper surface or the lower surface of the fixing part.

[0013] In some embodiments of the present application, a through hole is formed on the base, and the receiving cavity has a transformer chamber and a sampling element chamber surrounding the through hole; in a first direction, the sampling element chamber is located above the transformer chamber; further included is a transformer, the central hole of the transformer overlaps with the through hole, and the transformer is snap-connected in the transformer chamber or is epoxy potted in the transformer chamber.

[0014] In some embodiments of the present application, the first fastener group includes a first buckle, one end of the first buckle is connected to the module housing, and the other end extends beyond the module housing to be snap-connected with the circuit breaker housing; in the first direction, the first buckle is higher than the sampling piece.

[0015] In some embodiments of the present application, the first fastener group includes a first plug-in part, one end of the first plug-in part is connected to the module housing, and the other end is inserted into the circuit breaker housing; in the first direction, the first plug-in part is higher than the sampling piece.

[0016] In some embodiments of the present application, the first fastener group includes a second buckle, and the second buckle is used for buckling with the circuit breaker housing; in the first direction, the second buckle is lower than the sampling piece.

[0017] In some embodiments of the present application, a wire routing hole is provided on the module housing, and the other end of the lead wire is led out of the module housing through the wire routing hole; the wire routing hole is opened along the third direction, and the contact part is located in the second direction of the fixing part; the third direction and the second direction are two mutually perpendicular directions.

[0018] A circuit breaker combination includes at least one circuit breaker and an electronic module. The electronic module is arranged on one side in the width direction of the circuit breaker, and a circuit board assembly is provided inside the electronic module; the circuit breaker includes a circuit breaker housing, and wiring terminal cavities are provided at both ends in the length direction of the circuit breaker housing; a wiring assembly is provided in each wiring terminal cavity; the wiring assembly includes a wiring screw, a wiring frame and a conductive row, and the wiring screw is threadedly connected with the wiring frame; the conductive row is a bent structure, and a part of the conductive row is sleeved on the wiring screw and one end is located inside the wiring frame for wiring; wherein, the above-mentioned sampling module is further included, and the sampling module is connected to one side in the length direction of the circuit breaker housing corresponding to one of the wiring assemblies; an insertion hole communicating with the wiring terminal cavity is provided on the circuit breaker housing, and the contact part is inserted into the wiring terminal cavity through the insertion hole and is clamped by the head of the wiring screw and the conductive row of the corresponding wiring assembly; the other end of the lead wire is electrically connected to the circuit board assembly.

[0019] In some embodiments of the present application, a sampling module is provided on the first side in the length direction of the circuit breaker housing, an exhaust hole is provided on the first side in the length direction of the circuit breaker housing, and an avoidance groove is provided on the module housing, and the avoidance groove communicates with the exhaust hole.

[0020] In some embodiments of the present application, a sampling module is provided on the second side in the length direction of the circuit breaker housing, a bimetal adjustment hole is provided on the second side in the length direction of the circuit breaker housing, and an avoidance space is provided on the module housing, and the avoidance space communicates with the bimetal adjustment hole.

[0021] Advantages of the present application compared with the prior art:

[0022] The sampling module of the present application can be spliced on one side of the circuit breaker. Since the sampling piece is provided with an avoidance groove, the wiring screw can pass through the avoidance groove to clamp the contact part. Compared with the existing sampling module, such a sampling module does not waste the space of the wiring hole (wiring frame), and the sampling module can be combined with an ordinary circuit breaker. Description of the Drawings

[0023] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 Shows an axonometric view of the circuit breaker combination according to the embodiment of the present application;

[0025] Figure 2 Shows an axonometric view of another perspective of the circuit breaker combination according to the embodiment of the present application;

[0026] Figure 3 Shows a schematic diagram of the circuit breaker according to the embodiment of the present application;

[0027] Figure 4 Shows a schematic diagram and a partial enlarged view of the cooperation between the sampling module and the circuit breaker according to the embodiment of the present application;

[0028] Figure 5 Shows a schematic diagram of the sampling module (one way) according to the embodiment of the present application;

[0029] Figure 6 Shows a schematic diagram of the sampling module (another way) according to the embodiment of the present application;

[0030] Figure 7 Shows a schematic diagram of removing the cover plate of the sampling module (another way) according to the embodiment of the present application;

[0031] Figure 8 Shows a schematic diagram of the cover plate of the sampling module (another way) according to the embodiment of the present application;

[0032] Figure 9 Shows an axonometric view of the circuit breaker combination (3P scheme) according to the embodiment of the present application;

[0033] Figure 10 Shows an axonometric view of the sampling module (3P scheme) according to the embodiment of the present application;

[0034] Figure 11 Shows an axonometric view of another way of the sampling module (3P scheme) according to the embodiment of the present application.

[0035] Explanation of reference numerals:

[0036] 1 - Circuit breaker, 2 - Sampling module, 3 - Electronic module, 10 - Width direction, 20 - Height direction, 30 - Length direction, 110 - Terminal cavity, 120 - Insertion hole, 130 - Exhaust hole, 140 - Bimetal adjustment hole, 150 - First mounting hole, 160 - First mounting groove, 170 - Second mounting groove, 1100 - Wiring screw, 1110 - Wiring frame, 1120 - Conductive bar, 210 - Module housing, 220 - Sampling piece, 230 - Sampling element, 240 - Lead wire, 250 - Current transformer, 2110 - Base, 2111 - Through hole, 2115 - Hook, 2120 - Cover plate, 2121 - First through hole, 2125 - Bayonet, 2130 - Avoidance groove, 2140 - Avoidance space, 2150 - First slot, 2160 - Contact plate, 2170 - First buckle, 2180 - First plug-in, 2190 - Second buckle, 2195 - Wiring hole, 2210 - Fixing part, 2220 - Contact part, 2230 - Avoidance slot. Detailed implementation manners

[0037] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0040] In this application, unless otherwise clearly stipulated and defined, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In this application, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature. Embodiment

[0042] As Figure 1 - Figure 2 shown, an embodiment of this application is a circuit breaker combination, which includes a circuit breaker 1, an electronic module 3, and a sampling module 2.

[0043] The circuit breaker 1, which can also be said to be an air switch, can achieve corresponding functions such as overload protection and short - circuit protection. Of course, the circuit breaker 1 here can also be selected as a leakage circuit breaker 1 that also includes a leakage protection function. No matter which type of circuit breaker 1 it is, its working principle belongs to the conventional means in this field and will not be elaborated here. The circuit breaker 1 can be single - pole (as Figure 1 , Figure 2 shown), or it can be three - pole (as Figure 9 , Figure 10 , Figure 11 shown).

[0044] The electronic module 3 contains a circuit board assembly inside. The electronic module 3 here is used to receive the sampling signals from the sampling module 2. For example, it can receive temperature signals, voltage signals, current signals, etc., and can be designed according to actual needs specifically. Of course, the transmission methods of these signals to the circuit board assembly belong to the conventional means in this field and will not be elaborated here. It is worth mentioning that the electronic module 3 can also include a communication function, so that the host computer can communicate with the electronic module 3 to transmit parameter information (such as temperature signals, voltage signals, current signals, etc.). Of course, the way of realizing the transmission of information by this communication function also belongs to the conventional means in this field and will not be elaborated here either.

[0045] The electronic module 3 is arranged on one side of the width direction 10 of the pole circuit breaker 1, and the housing of the electronic module 3 is fixedly connected to the housing of the circuit breaker 1 by riveting. Of course, snap connection can also be used here, or a combination of snap connection and riveting can be used for fixation. No matter which method is used, as long as the connection between the two is stable.

[0046] Each pole circuit breaker 1 has two wiring terminal cavities 110, and the two wiring terminal cavities 110 are respectively arranged at both ends of the length direction 30 of the housing of the circuit breaker 1. Each wiring terminal cavity 110 is used to place a wiring component, and the wiring component here includes a wiring screw 1100, a wiring frame 1110, and a busbar 1120. Specifically, the wiring screw 1100 is threadedly connected to the wiring frame 1110. The busbar 1120 is a bent structure, which can be said to be a continuously bent structure, so that one end of the conductive part can extend into the wiring frame 1110 (this part is used to clamp the wire, or can be said to be used for wiring), and at least a part of the wire is sleeved on the wiring screw 1100 (this part is clamped to the sampling piece 220 by the screw head of the wiring screw 1100).

[0047] The sampling modules 2, with a quantity of two, are respectively connected to both sides of the length direction 30 of the housing of the circuit breaker 1. Here, the connection method is snap connection, which will be specifically described below and will not be elaborated here.

[0048] Insertion holes 120 are provided on both the left and right sides of the length direction 30 of the housing of the circuit breaker 1 (which can also be said to be the holes originally reserved by the circuit breaker for the insertion of the busbar and now changed to allow the sampling piece 220 to pass through). The insertion holes 120 are communicated with the wiring terminal cavities 110 to allow the sampling pieces 220 of the two sampling modules 2 to be inserted.

[0049] Both of the two sampling modules 2 include a module housing 210, a sampling piece 220, a sampling element 230, and a lead 240.

[0050] Here, one end of the sampling piece 220 is a fixing part 2210, and the other end of the sampling piece 220 is a contact part 2220. The fixing part 2210 is fixed to the module housing 210, and the contact part 2220 extends outside the module housing 210 and is inserted into the wiring terminal cavity 110 through the insertion hole 120 and is clamped by the head of the corresponding wiring screw 1100 and the busbar 1120. Here, an avoidance groove 2230 is provided on the contact part 2220, and the avoidance groove 2230 allows part of the wiring screw 1100 to pass through. Through the opening of the avoidance groove 2230, the shape of the contact part 2220 becomes as Figure 5 shown in a U shape. Of course, in addition to the U shape, it can also be a 30 shape, as long as it can allow part of the wiring screw 1100 to pass through. Of course, bubble points can also be provided on the contact part 220 here to increase the friction force.

[0051] The sampling element 230 is attached to a part of the sampling piece 220 located inside the module housing 210, and in this embodiment, it is attached to the upper surface of the fixing portion 2210 (for example, welded to fasten the two, and of course, snap connection or other methods can also be used).

[0052] One end of the lead 240 is electrically connected to the sampling element 230, and the other end penetrates into the electronic module 3 and is electrically connected to the circuit board assembly. Here, the connection method between the lead 240 and the sampling element 230 is welding, and the connection method between the lead 240 and the circuit board assembly can be formed by a connector for convenient manufacturing and assembly.

[0053] For the sampling element 230, it can be a voltage sampling component with only voltage sampling function (for example, transmitting a voltage signal to the circuit board assembly to achieve voltage monitoring or powering the power circuit of the circuit board assembly, etc. For the specific circuits for realizing these functions, they are already common knowledge and will not be elaborated here), or it can be a temperature sampling component with only temperature sampling function (for example, transmitting an electrical signal to the circuit board assembly, and the circuit board assembly can identify the corresponding temperature information according to this electrical signal. Such circuits for temperature recognition functions are also already common knowledge and will not be elaborated), or it can be a temperature sampling component and a voltage sampling component with both sampling functions. In this embodiment, a thermocouple is used, and the electrical parameters it samples can be used to identify temperature and can also be used for voltage-related functions.

[0054] By using such a module, it can be spliced on one side of the most common circuit breaker 1. Since the sampling piece 220 is provided with an avoidance groove 2230, the wiring screw 1100 can pass through the avoidance groove 2230 to clamp the contact portion 2220 between the head of the wiring screw 1100 and the bus bar 1120. It neither wastes the space of the wiring hole (wiring frame 1110) nor can transform the most common circuit breaker 1 to realize sampling of temperature, voltage, etc.

[0055] As Figure 1 shown, for the module housing 210 on the left side (i.e., the first side) in the length direction 30 of the circuit breaker 1 housing, it has an avoidance groove 2130. An exhaust hole 130 is provided on the left side surface in the length direction 30 of the circuit breaker 1 housing (for discharging gas when the circuit breaker 1 trips), and the avoidance groove 2130 communicates with the exhaust hole 130, so that the gas will not be interfered by the module housing 210, which is beneficial to the exhaust of the circuit breaker 1.

[0056] As Figure 2As shown, for the module housing 210 on the right side (i.e., the second side) in the length direction 30 of the housing of the circuit breaker 1, it has an avoidance space 2140. A bimetal adjustment hole 140 (a hole for adjusting the bimetal) is provided on the right side surface of the housing of the circuit breaker 1 in the length direction 30. The module housing 210 is provided with an avoidance space 2140, and the avoidance space 2140 communicates with the bimetal adjustment hole 140. Here, the avoidance space 2140 is actually the lower area of the module housing 210 after the module housing 210 is fixed to the housing of the circuit breaker 1.

[0057] Here, as Figure 5 shown, the fixing method between the fixing part 2210 and the module housing 210 is by plugging. That is, a first slot 2150 is provided on the module housing 210, and a part of the fixing part 2210 is inserted into the first slot 2150. The first slot 2150 is formed by ribs formed on the module housing 210. The module housing 210 also has an abutting plate 2160. The abutting plate 2160 is located on one side of the first slot 2150 and extends beyond the first slot 2150, so that one surface of the fixing part 2210 can abut against the abutting plate 2160. Here, the abutting plate 2160 is actually formed by extending one of the ribs that form the first slot 2150, so it can extend beyond the first slot 2150 to form an abutment with the abutting plate 2160. Here, the first abutting plate 2160 can be set to abut against the upper surface of the fixing part 2210 or the lower surface of the fixing part 2210.

[0058] Here, the module housing 210 is provided with a first fastener group, and the first fastener group forms a snap connection with the housing of the circuit breaker 1. Such a structure is very beneficial to the assembly of the two.

[0059] Here, the cooperation between the first snap group and the circuit breaker 1 actually makes use of the existing accessory mounting holes and slots on the circuit breaker 1 (originally these holes and slots were for hanging accessories such as shunt trips and auxiliaries).

[0060] As Figure 3 、 Figure 5 and Figure 8 shown, the first snap group includes a first snap 2170. One end of the first snap 2170 is connected to the module housing 210, and the other end extends beyond the module housing 210. In the first direction (which can be said to be the height direction 20), the first snap 2170 is higher than the sampling piece 220. The number of the first snaps 2170 is two, and they are snap-connected to the first mounting hole 150 in the accessory mounting hole. Such a structure can directly snap-fix the module housing 210 to an ordinary circuit breaker 1 without the need to additionally drill holes on the circuit breaker 1 (directly using the existing circuit breaker 1).

[0061] AsFigure 3 , Figure 5 and Figure 8 As shown in Figure 8 , the first buckle group includes a first plug 2180. One end of the first plug 2180 is connected to the module housing 210, and the other end extends beyond the module housing 210. In the first direction (which can be said to be the height direction 20), the first plug 2180 is higher than the sampling chip 220. The number of the first plugs 2180 is two, and they are inserted correspondingly into the first mounting grooves 160 in the accessory mounting holes. The assembly can be completed by using the first mounting grooves 160 of the existing circuit breaker 1, without the need to additionally drill holes in the circuit breaker 1 (directly borrowing the existing circuit breaker 1).

[0062] As Figure 3 , Figure 5 and Figure 8 shown, the first fastener group includes a second buckle 2190. In the first direction (which can be said to be the height direction 20), the second buckle 2190 is lower than the sampling chip 220. The number of the second buckles 2190 is also two, and they are correspondingly clamped with the second mounting grooves 170 in the accessory mounting holes. With such a structure, the assembly can also be completed by borrowing the second mounting grooves 170 of the existing circuit breaker 1.

[0063] For the sampling module 2, its module housing 210 can be a structure formed by integral injection molding or a split molding structure.

[0064] As a split molding structure, as Figure 6 , Figure 7 and Figure 8 shown, the module housing 210 includes a base 2110 and a cover plate 2120. The base 2110 has a receiving cavity, and the receiving cavity has an opening on the base 2110. The cover plate 2120 is used to cover the opening. The cover plate 2120 and the base 2110 are fixed by clamping, that is, through the cooperation of the second buckle group and the bayonet 2125 group. Here, the second buckle group includes six hooks 2115 formed on the base 2110, which are distributed near the outer wall of the base 2110; the bayonet 2125 group includes six bayonets 2125, and the hooks 2115 and the bayonets 2125 correspond one by one to form a clamping fixation. Of course, the number of the hooks 2115 and the bayonets 2125 here can be more or less, as long as the two can be stably connected together. Of course, in addition to this, the cover plate 2120 and the base 2110 can also be connected by means of screw fastening, riveting, ultrasonic welding, etc.

[0065] In this way, the first buckle group is arranged on the cover plate 2120, and the assembly of the module housing 210 and the housing of the circuit breaker 1 can be realized. The specific structure of the first buckle group has been exemplified above and will not be elaborated here.

[0066] AsFigure 7 and Figure 8 As shown in Figure 8 , based on the structure of the module housing 210 with the cover plate 2120, the first slot 2150 is provided in the accommodation cavity. The cover plate 2120 has a first through hole 2121. The fixing part 2210 is inserted into the first slot 2150, and the contact part 2220 extends out of the module housing 210 through the first through hole 2121. Such a result is beneficial to the arrangement of the sampling piece 220.

[0067] Based on the structure of the module housing 210 with the cover plate 2120, the accommodation cavity has a mutual inductor chamber and a sampling element chamber. The base 2110 is provided with a through hole 2111 (corresponding to the wiring hole of the circuit breaker 1, and the main circuit conductor passes through it). The mutual inductor chamber surrounds the periphery of the through hole 2111. In the first direction (height direction 20), the sampling element chamber is located above the mutual inductor chamber. Here, the sampling element chamber accommodates the sampling element 230, and the mutual inductor chamber is used to accommodate the mutual inductor 250. Specifically, the mutual inductor 250 is fixed in the mutual inductor chamber by means of epoxy resin potting. The central hole of the mutual inductor 250 overlaps with the through hole 2111. In addition, the mutual inductor 250 can also be fixed in the mutual inductor chamber by means of snap connection.

[0068] For the lead wire 240 of the sampling piece and the wire of the mutual inductor 250, they are led out through the wiring hole 2195 on the module housing 210, and then penetrate into the electronic module 3 to form an electrical connection with the circuit board assembly (for example, by using a connector). Here, the wiring hole 2195 of the module housing 210 is opened along the third direction, that is, along the width direction 10. The contact part 2220 of the sampling piece 220 is located in the second direction (that is, the length direction 30) of the fixing part 2210.

[0069] Although the sampling module structure of the 11 circuit breaker is exemplified above, this solution can also be applied to the sampling module of 31, such as Figure 9 , Figure 10 and Figure 11 as shown.

[0070] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0071] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A sampling module, which comprises a module housing, a sampling piece, a sampling element and a lead; characterized in that: One end of the sampling piece is a fixed part, and the fixed part is fixed to the module housing; the other end of the sampling piece is a contact part, and the contact part extends out of the module housing for being clamped by the wiring screw of the circuit breaker; an avoidance groove is formed in the contact part for part of the wiring screw to pass through; the sampling element is attached to a part of the sampling piece located inside the module housing, and the sampling element is a temperature sampling element and / or a voltage sampling element; one end of the lead is located inside the module housing and is electrically connected to the sampling element, and the other end of the lead is located outside the module housing.

2. The sampling module according to claim 1, characterized in that: A first fastener group is arranged on the module housing, and the first fastener group is used for buckling with the circuit breaker housing.

3. The sampling module according to claim 2, characterized in that: The module housing has a first slot, and the fixed part is inserted into the first slot.

4. The sampling module according to claim 2, wherein: The module housing includes a base and a cover plate; the base has a receiving cavity, the receiving cavity has an opening on the base, the cover plate is used for covering the opening, and the connection position of the fixed part and the module housing is inside the receiving cavity; the first fastener group is arranged on the cover plate, and the cover plate and the base are fixed by snap connection or screw connection or riveting or ultrasonic welding.

5. The sampling module according to claim 4, wherein: A first slot is arranged on the base, and a first through hole is formed in the cover plate; the fixed part is inserted into the first slot, and the contact part extends out of the module housing through the first through hole.

6. The sampling module according to claim 3 or 5, characterized in that: An abutting plate is formed on the module housing, the abutting plate is located on one side of the first slot and extends beyond the first slot, and the abutting plate is attached to the upper surface or the lower surface of the fixed part.

7. A sampling module according to claim 4, characterized in that: A through hole is formed in the base, and the receiving cavity has a transformer chamber and a sampling element chamber surrounding the through hole; in a first direction, the sampling element chamber is located above the transformer chamber; a transformer is further included, the central hole of the transformer overlaps with the through hole, and the transformer is snap-connected in the transformer chamber or is epoxy potted in the transformer chamber.

8. A sampling module according to any one of claims 2-5, characterized in that: The first fastener group includes a first buckle, one end of the first buckle is connected to the module housing, and the other end extends beyond the module housing to be buckled with the circuit breaker housing; in the first direction, the first buckle is higher than the sampling piece; and / or, the first fastener group includes a first plug-in part, one end of the first plug-in part is connected to the module housing, and the other end is inserted into the circuit breaker housing; in the first direction, the first plug-in part is higher than the sampling piece; and / or, the first fastener group includes a second buckle, and the second buckle is used for buckling with the circuit breaker housing; in the first direction, the second buckle is lower than the sampling piece.

9. A sampling module according to claim 1, wherein: A wiring hole is formed in the module housing, the wiring hole is arranged along a third direction, and the contact part is located in a second direction of the fixed part; the third direction and the second direction are two mutually perpendicular directions.

10. A circuit breaker combination, which includes at least one circuit breaker and an electronic module. The electronic module is arranged on one side in the width direction of the circuit breaker, and a circuit board assembly is provided inside the electronic module; the circuit breaker includes a circuit breaker housing, and terminal cavities are provided at both ends in the length direction of the circuit breaker housing; a wiring assembly is provided in each terminal cavity; the wiring assembly includes a wiring screw, a wiring frame and a busbar. The wiring screw is threadedly connected to the wiring frame; the busbar is of a bent structure, and part of the busbar is sleeved on the wiring screw and one end is located inside the wiring frame for wiring; it is characterized in that: At least one sampling module as described in any one of claims 1-9 is further included, and the sampling module is connected to one side in the length direction of the circuit breaker housing corresponding to one of the wiring assemblies; an insertion hole communicating with the wiring terminal cavity is formed in the circuit breaker housing, and the contact part is inserted into the wiring terminal cavity through the insertion hole and is clamped by the wiring screw head and the conductive bar of the corresponding wiring assembly; the other end of the lead is electrically connected to the circuit board assembly.

11. A circuit breaker combination according to claim 10, wherein: The sampling module is arranged on a first side in the length direction of the circuit breaker housing, an exhaust hole is formed on the first side in the length direction of the circuit breaker housing, and an avoidance groove is arranged on the module housing, and the avoidance groove communicates with the exhaust hole; And / or, a sampling module is provided on the second side in the length direction of the circuit breaker housing. A bimetal adjustment hole is formed on the second side in the length direction of the circuit breaker housing, and an avoidance space is provided on the module housing. The avoidance space is communicated with the bimetal adjustment hole.

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