Copper bar fixing device and distribution box

Abstract

The utility model belongs to the technical field of low-voltage power distribution cabinets, and discloses a copper bar fixing device and a power distribution box. The copper bar fixing device comprises a fixing main body and an elastic piece, and the first end of the copper bar is mounted in the fixing main body; the elastic piece is arranged at the second end of the copper bar, the elastic piece and the second end of the copper bar are both located in the fixing body, the third end of the copper bar is used for making contact with the wire inlet end or the wire outlet end of the circuit breaker, the third end is located between the first end and the second end, and the elastic piece is used for making the third end of the copper bar elastically abut against the wire inlet end or the wire outlet end. By arranging the fixing main body and the elastic piece which are matched for use, lap joint between the copper bar and the circuit breaker can be ensured, insertion and extraction of the circuit breaker are facilitated, time and labor are saved, and lap joint reliability can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage power distribution cabinets, in particular to a copper busbar fixing device and a power distribution box. Background Art

[0002] In a hot-swappable miniature circuit breaker with upper end signal input, lower end signal output, and intermediate signal collection, screws are usually used to fix the copper busbar to the circuit breaker to achieve overlap between the circuit breaker and the copper busbar; however, the use of screw overlap easily occupies a large space, is not conducive to the insertion and removal of the circuit breaker, and is time-consuming and labor-intensive; and there is no guarantee that the circuit breaker can still be stably overlapped with the copper busbar after multiple insertions and removals of the circuit breaker, resulting in low overlap reliability.

[0003] Therefore, there is an urgent need for a copper busbar fixing device and a distribution box to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a copper busbar fixing device and a distribution box, which can ensure the overlap between the copper busbar and the circuit breaker, facilitate the insertion and removal of the circuit breaker, save time and labor, and ensure the reliability of the overlap.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] Copper busbar fixing device, used to fix the copper busbar, including:

[0007] A fixed body, in which the first end of the copper busbar is installed;

[0008] an elastic member, the elastic member being arranged at the second end of the copper bar, and the elastic member and the second end of the copper bar are both located in the fixed body, the third end of the copper bar is used to contact the incoming line end or the outgoing line end of the circuit breaker, and the third end is located between the first end and the second end, and

[0009] The elastic member is used to make the third end elastically abut against the line inlet or the line outlet.

[0010] As an optional solution, the elastic member includes:

[0011] A bending plate and an abutment plate, one end of the bending plate is formed with a snap-in groove, the second end of the copper busbar is inserted into the snap-in groove, the other end of the bending plate is connected to the abutment plate, the abutment plate and the snap-in groove are arranged on opposite sides of the bending plate, and the abutment plate can drive the third end of the copper busbar to elastically abut against the input terminal or the output terminal under the abutment action of the inner wall surface of the fixed body.

[0012] As an optional solution, the top of the abutment plate can abut against the inner wall surface of the fixed body.

[0013] As an optional solution, the bending plate and the abutting plate are an integrally formed structure.

[0014] As an optional solution, the fixing body includes two groups of fixing components, and the two groups of fixing components are arranged at intervals to fix the two groups of copper bars respectively; the fixing components include:

[0015] a first insulating member, wherein the first end of the copper busbar is installed in the first insulating member;

[0016] The second insulating member is spaced apart and located on one side of the first insulating member and on one side of the circuit breaker. The elastic member and the second end of the copper bar are both confined in the second insulating member. The circuit breaker is inserted between the two groups of copper bars through interference fit between the two second insulating members.

[0017] As an optional solution, a plurality of through holes are provided in the first insulating member, and the first end of one of the copper bars is installed in one of the through holes; a plurality of mounting grooves are provided in the second insulating member, and the second end of one of the copper bars extends into one of the mounting grooves, and the elastic member can drive the third end of the copper bar to elastically abut against the incoming line end or the outgoing line end under the abutment action of the inner wall surface of the mounting groove; and / or

[0018] A first support member is provided between the first insulating members in the two groups of the fixing assemblies, and a first fastener is connected to the two first insulating members and the first support member; a second support member is provided between the second insulating members in the two groups of the fixing assemblies, and a second fastener is connected to the two second insulating members and the second support member;

[0019] A third insulating member is connected between two adjacent first supporting members and the second supporting members.

[0020] As an optional solution, the fixing body includes:

[0021] An insulating frame, wherein a cavity is formed in the insulating frame, wherein a group of limiting grooves are respectively provided at the top and bottom of the cavity, wherein the two groups of limiting grooves are respectively used to install two groups of the copper bars, wherein a clamping groove is provided in the limiting groove, and the second end of the copper bar is plugged into the clamping groove;

[0022] A baffle is also provided in the insulating frame, and the baffle is provided above the limiting groove. The first end of the copper busbar is limited between the limiting groove and the baffle.

[0023] The distribution box comprises a circuit breaker, a shell, a copper busbar and the copper busbar fixing device as described above, wherein the copper busbar fixing device is installed in the shell, two groups of the copper busbars are arranged opposite to each other in the shell, and the circuit breaker is pluggably installed between the two groups of the copper busbars.

[0024] As an optional solution, the housing includes:

[0025] A box body, the box body having an opening, a lower mounting plate installed in the box body, and the bottom end of the fixed body is mounted to the lower mounting plate;

[0026] A cover plate is provided to cover the opening, an upper mounting plate is installed inside the cover plate, and a top end of the fixed body is installed to the upper mounting plate.

[0027] As an optional solution, the housing further includes:

[0028] Reinforcing ribs are respectively provided on the box body and the cover plate.

[0029] Beneficial effects:

[0030] The copper bar fixing device proposed by the utility model is provided with a fixing body and an elastic member used in cooperation with each other. When the circuit breaker is inserted between the two groups of copper bars with interference fit, due to the squeezing of the copper bar by the circuit breaker, the elastic member can press the copper bar in the opposite direction under the abutment action of the inner wall surface of the fixing body, so that the elastic member provides elastic force for the copper bar, so as to elastically abut the third end of the copper bar against the incoming line end or the outgoing line end of the circuit breaker, so that the contact area between the copper bar and the incoming line end or the outgoing line end is large, and the contact strength is tight, so that the two groups of copper bars are overlapped with the incoming line end and the outgoing line end of the circuit breaker respectively; the above-mentioned contact form fixed by elastic stress is used to realize the overlap between the circuit breaker and the copper bar, which saves space compared with the use of screws to fix the copper bar to the circuit breaker, and is conducive to the insertion and removal of the circuit breaker, saving time and labor; and, due to the elastic pressure of the elastic member on the copper bar, it can be ensured that the circuit breaker can still be stably overlapped with the copper bar after the circuit breaker is plugged and unplugged for many times, thereby ensuring that the overlap reliability between the circuit breaker and the copper bar is high.

[0031] The power distribution box proposed in the utility model, because it includes the copper busbar fixing device, can realize the overlapping between the circuit breaker and the copper busbar in a limited space, which is convenient for inserting and removing the circuit breaker, thereby making the use of the power distribution box simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the exploded structure of the fixed body provided in the first embodiment of the utility model;

[0033] Figure 2This is a schematic diagram of a partially exploded structure of a copper busbar fixing device (provided with a circuit breaker and a copper busbar) provided in Embodiment 1 of the present utility model;

[0034] Figure 3 It is a schematic diagram of the exploded structure of the housing provided in the first embodiment of the present utility model;

[0035] Figure 4 It is a schematic structural diagram of the elastic member provided in the first embodiment of the utility model;

[0036] Figure 5 It is a schematic diagram of the structure of the copper busbar located on the upper layer provided in the first embodiment of the utility model;

[0037] Figure 6 It is a schematic diagram of the structure of the copper busbar located at the lower layer provided in the first embodiment of the utility model;

[0038] Figure 7 It is a schematic diagram of the structure of the circuit breaker (including three circuit breakers) provided in the first embodiment of the utility model;

[0039] Figure 8 It is a schematic diagram of the assembly structure between the elastic member and the fixed body (the elastic member is not inserted into the upper second insulating member) provided in the first embodiment of the utility model;

[0040] Fig. 9 yes Figure 8 A schematic diagram of the local enlarged structure at point A in the middle;

[0041] Fig.10 It is a structural schematic diagram of the copper busbar fixing device (excluding the box body and the cover plate) provided in the first embodiment of the utility model;

[0042] Fig.11 It is a structural schematic diagram of the acquisition board provided in the first embodiment of the utility model;

[0043] Fig.12 It is a structural schematic diagram of a fixed main body (with a copper busbar) provided in the second embodiment of the present utility model;

[0044] Fig.13 It is a cross-sectional view of the fixed body (with a copper busbar) provided in the second embodiment of the present utility model.

[0045] In the figure:

[0046] 1. Shell; 11. Box body; 111. Handle; 12. Lower mounting plate; 13. Cover plate; 14. Upper mounting plate; 15. Reinforcement ribs;

[0047] 2. Copper busbar fixing device; 211. Fixing assembly; 2111. First insulating member; 2112. Second insulating member; 2113. Through hole; 2114. Mounting groove; 212. First supporting member; 213. Second supporting member; 214. Third insulating member; 215. First fastener; 216. Second fastener; 22. Elastic member; 221. Bending plate; 2211. Clamping groove; 222. Abutting plate;

[0048] 23, insulating frame; 231, cavity; 232, limiting groove; 233, card slot; 234, baffle;

[0049] 3. Copper busbar; 31. First end; 32. Second end; 33. Third end;

[0050] 4. Circuit breaker; 41. Incoming terminal; 42. Outgoing terminal; 43. Insertion terminal;

[0051] 5. Collection board; 51. Gold finger. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0053] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0056] Embodiment 1

[0057] like Figures 1 to 3 As shown, in this embodiment, a copper bar fixing device 2 and a distribution box including the copper bar fixing device 2 are proposed. The distribution box also includes an outer box, a shell 1, a circuit breaker 4 and a copper bar 3. The copper bar fixing device 2 is installed in the shell 1. Two groups of copper bars 3 are relatively arranged in the shell 1. The circuit breaker is plugged and installed between the two groups of copper bars 3. The circuit breaker, the shell 2 and the copper bar fixing device 2 in the shell 2 are placed in the outer box as a whole. The copper bar is fixed by the copper bar fixing device 2 to achieve the overlap between the copper bar and the circuit breaker. In this embodiment, the copper bar 3 in one group can contact the incoming line terminal 41 of the circuit breaker 4, and the copper bar 3 in the other group can contact the outgoing line terminal 42 of the circuit breaker 4. Among them, the distribution box is connected to an external power supply, the external power supply can be AC ​​power, the distribution box receives the AC power, and provides it to the load after conversion, so as to output a more stable voltage to power the load; the copper busbar 3 has good conductivity and can produce a certain elastic deformation under force, but will not produce plastic deformation. The copper busbar 3 in this embodiment is specifically a copper busbar 3 with a hole at the tail and a specification of 2mmx10mm, and each group of copper busbars 3 includes 21 copper busbars 3.

[0058] It is worth noting that the outer box body, as the external envelope of the distribution box, can accommodate various electronic components and protect various electronic components; in addition to the above-mentioned circuit breakers, the electronic components may also include other electronic components, such as air conditioning distribution modules, which are not specifically limited here. In this embodiment, the circuit breaker refers to a hot-swappable miniature circuit breaker with upper end signal input, lower end signal output, and intermediate signal collection, specifically a 7-way 32A / 3P distribution miniature circuit breaker. The number of P of the circuit breaker is not limited here, and it can be 1P or multiple P. Among them, the above-mentioned P represents the number of levels, and several Ps mean several levels. For example, a 2P circuit breaker can be called a secondary level, and a 2P circuit breaker has two terminal heads, one is a neutral line and the other is a phase line.

[0059] Furthermore, if Figures 1 to 7As shown, the copper bar fixing device 2 includes a fixing body and an elastic member 22; wherein, the first end 31 of the copper bar 3 is installed in the fixing body by bolts, the elastic member 22 is arranged at the second end 32 of the copper bar 3, and the elastic member 22 and the second end 32 of the copper bar 3 are both extended into the fixing body, and the third end 33 of the copper bar 3 is used to contact the incoming line end 41 or the outgoing line end 42 of the circuit breaker 4, the third end 33 is located between the first end 31 and the second end 32, and the elastic member 22 is used to make the third end 33 elastically abut against the incoming line end 41 or the outgoing line end 42; that is, when the circuit breaker 4 is inserted between the two groups of copper bars 3 with interference fit, the circuit breaker 4 will squeeze the copper bar 3, so that the second end 32 of the copper bar 3 squeezes the elastic member 22, so that the elastic member 22 can drive the third end 33 of the copper bar 3 to elastically abut against the incoming line end 41 or the outgoing line end 42 under the abutting action of the inner wall surface of the fixing body.

[0060] By providing the elastic member 22, when the circuit breaker 4 is interference-inserted between the two groups of copper bars 3, the copper bars 3 squeeze the elastic member 22 due to the squeezing effect of the circuit breaker 4 on the copper bars 3, so that the elastic member 22 reversely squeezes the copper bars 3 under the abutment effect of the inner wall surface of the fixed body, so that the copper bars 3 in one group can elastically contact the incoming terminal 41 of the circuit breaker 4, and the copper bars 3 in the other group can elastically contact the outgoing terminal 42 of the circuit breaker 4, so that the two groups of copper bars 3 are overlapped with the incoming terminal 41 and the outgoing terminal 42 of the circuit breaker 4 respectively; the above-mentioned contact form fixed by elastic stress is used to realize the overlap between the circuit breaker 4 and the copper bars 3, which saves space compared with using screws to fix the copper bars 3 to the circuit breaker 4, is conducive to the insertion and removal of the circuit breaker 4, and saves time and effort.

[0061] Furthermore, by providing an elastic member 22 to elastically contact the copper busbar 3 to the incoming terminal 41 or the outgoing terminal 42, the contact area between the copper busbar 3 and the incoming terminal 41 or the outgoing terminal 42 is larger, and the contact strength is tighter, thereby ensuring that the circuit breaker 4 can still be stably connected to the copper busbar 3 after multiple plugging and unplugging of the circuit breaker 4, thereby ensuring that the connection reliability between the circuit breaker 4 and the copper busbar 3 is high.

[0062] Here, there is no limitation on the height of the entire copper busbar fixing device 2, which may be 1U or multiple Us, where 1U specifically refers to the height of a fixed body, that is, the copper busbar fixing device 2 may include multiple fixed bodies, one fixed body is disposed in a shell 1, and multiple shells 1 are stacked in sequence.

[0063] Specifically, Figures 4 to 9As shown, the elastic member 22 includes a bending plate 221 and an abutment plate 222, one end of the bending plate 221 is bent to form a clamping groove 2211, and the second end 32 of the copper bus 3 is inserted into the clamping groove 2211 to install the elastic member 22 at the second end 32 of the copper bus 3; the other end of the bending plate 221 is connected to the abutment plate 222, and the abutment plate 222 is arranged close to the inner wall surface of the fixed body and is away from the clamping groove 2211, that is, the abutment plate 222 and the clamping groove 2211 are arranged on opposite sides of the bending plate 221, and the abutment plate 222 can drive the third end 33 of the copper bus 3 to elastically abut against the input terminal 41 or the output terminal 42 under the abutment action of the inner wall surface of the fixed body.

[0064] Specifically, if Figure 8 and Fig. 9 As shown, when the circuit breaker 4 is inserted between the two groups of copper bars 3 with interference fit, the circuit breaker 4 squeezes the copper bars 3 so that the second end 32 of the copper bars 3 squeezes the abutment plate 222 of the elastic member 22 to the inner wall surface of the fixed body. Due to the blocking and limiting effect of the abutment plate 222 on the inner wall surface of the fixed body, the abutment plate 222 and the bending plate 221 can elastically abut the copper bars 3 to the incoming line terminal 41 or the outgoing line terminal 42.

[0065] Furthermore, if Figure 4 and Fig. 9 As shown, the abutment plate 222 has a wavy structure, and the top of the wavy structure can abut against the inner wall surface of the fixed body, so that the elastic deformation of the abutment plate 222 is relatively fast and easy, so that the contact area between the abutment plate 222 and the inner wall surface of the fixed body can be increased through the wavy structure, so that the elastic force applied by the elastic member 22 to the copper bus 3 is larger, thereby ensuring that the contact strength between the copper bus 3 and the circuit breaker 4 is tighter, and further ensuring that the overlap reliability between the circuit breaker 4 and the copper bus 3 is higher.

[0066] In this embodiment, Figure 4 As shown, the bending plate 221 and the abutment plate 222 are an integrally formed structure, so that the processing of the elastic member 22 is relatively simple and convenient, and the connection strength between the bending plate 221 and the abutment plate 222 can be ensured, thereby preventing the bending plate 221 and the abutment plate 222 from separating from each other during the elastic deformation of the elastic member 22.

[0067] Furthermore, if Figure 1 As shown, the fixing body includes two groups of fixing components 211, and the two groups of fixing components 211 are arranged at intervals to fix two groups of copper bars 3 respectively, that is, the two groups of copper bars 3 are fixed in the copper bar fixing device 2 independently, and the two groups do not affect each other, which is conducive to speeding up the assembly efficiency of the entire copper bar fixing device 2.

[0068] Specifically, Figure 1As shown, the fixing assembly 211 includes a first insulating member 2111 and a second insulating member 2112; wherein the first end 31 of the copper busbar 3 is installed in the first insulating member 2111 by bolts; the second insulating member 2112 is spaced apart on one side of the first insulating member 2111 and on one side of the circuit breaker 4, and the elastic member 22 and the second end 32 of the copper busbar 3 are both limited in the second insulating member 2112, that is, the elastic member 22 and the second end 32 of the copper busbar 3 can float up and down in the second insulating member 2112, and the circuit breaker 4 is inserted between the two groups of copper busbars 3 through interference fit between the two second insulating members 2112.

[0069] Specifically, if Figure 8 and Fig. 9 As shown, in the upper fixing assembly 211, the bottom end surface of the second insulating member 2112 is higher than the bottom end surface of the third end 33 of the copper busbar 3; in the lower fixing assembly 211, the bottom end surface of the second insulating member 2112 is lower than the bottom end surface of the third end 33 of the copper busbar 3, that is, the distance between the upper and lower two adjacent second insulating members 2112 is greater than the distance between the upper and lower two adjacent copper busbars 3; so that the circuit breaker 4 can smoothly pass through the two second insulating members 2112, and then be interference-fitted between the two groups of copper busbars 3, to ensure reliable overlap between the copper busbar 3 and the circuit breaker 4.

[0070] Furthermore, if Figure 1 and Fig. 9 As shown, a plurality of through holes 2113 are provided in the first insulating member 2111, and a first end 31 of a copper busbar 3 is installed in a through hole 2113 by means of bolts; a plurality of mounting grooves 2114 are provided in the second insulating member 2112, and a second end 32 of a copper busbar 3 extends into a mounting groove 2114, that is, the second end 32 of the copper busbar 3 and the elastic member 22 can float up and down in the mounting groove 2114, and the abutting plate 222 of the elastic member 22 can abut against the inner wall surface of the mounting groove 2114, so that the elastic member 22 can drive the third end 33 of the copper busbar 3 to elastically abut against the incoming terminal 41 or the outgoing terminal 42 under the abutting action of the inner wall surface of the mounting groove 2114.

[0071] Specifically, Figure 1 and Figure 3As shown, in some embodiments, a first support member 212 is arranged between the first insulating members 2111 in the two groups of fixing components 211, and a first fastener 215 is connected to the two first insulating members 2111 and the first support member 212, that is, the first support member 212 provides support between the two first insulating members 2111, and the first fastener 215 connects the two first insulating members 2111 and the first support member 212; a second support member 213 is arranged between the second insulating members 2112 in the two groups of fixing components 211, and a second fastener 216 is connected to the two second insulating members 2112 and the second support member 213, that is, the second support member 213 provides support between the two second insulating members 2112, and the second fastener 216 connects the two second insulating members 2112 and the second support member 213; and a third insulating member 214 is connected between two adjacent first support members 212 and the second support member 213, so that the two groups of fixing components 211 can be connected to form a fixed body with a complete structure.

[0072] In this embodiment, the first insulating member 2111, the second insulating member 2112 and the third insulating member 214 can be made of plastic material, the first supporting member 212 and the second supporting member 213 can be sleeves; the first fastener 215 and the second fastener 216 can include bolts and nuts.

[0073] It is worth noting that, in other embodiments, the elastic member 22 may be arranged on the circuit breaker 4, and the two ends of the copper bar 3 may be respectively installed in the first insulating member 2111 and the second insulating member 2112, that is, at this time, the second end 32 of the copper bar 3 cannot float up and down in the second insulating member 2112, and the circuit breaker 4 can float up and down between the two groups of copper bars 3; when the circuit breaker 4 is inserted between the two groups of copper bars 3 with interference fit, the copper bars 3 will squeeze the elastic member 22 on the circuit breaker 4, so that the elastic member 22 elastically abuts the circuit breaker 4 against the third end 33 of the copper bar 3. The structure of the elastic member 22 arranged on the circuit breaker 4 is not limited here, as long as the connection and elastic squeezing functions can be achieved.

[0074] Furthermore, if Figure 2 , Figure 3 and Fig.10 As shown, the above-mentioned shell 1 includes a box body 11 and a cover plate 13, and an opening is provided on the box body 11. A lower mounting plate 12 is installed in the box body 11, and a second insulating member 2112 located at the lower layer in the fixed body is installed to the lower mounting plate 12; the cover plate 13 is covered on the opening to form a complete shell 1 structure, and an upper mounting plate 14 is installed in the cover plate 13, and a second insulating member 2112 located at the upper layer in the fixed body is installed to the upper mounting plate 14, so that the copper busbar fixing device 2 can be installed in the shell 1 through the upper mounting plate 14 and the lower mounting plate 12.

[0075] Specifically, Figure 3 As shown, the housing 1 further includes a reinforcing rib 15, which is welded on the box body 11 and the cover plate 13, respectively, so as to improve the structural strength of the entire housing 1 and prevent the housing 1 from structural deformation; and a handle is also provided on the box body 11, which can facilitate the insertion and removal of the circuit breaker 4, saving time and effort. In this embodiment, the entire housing 1 is made of a sheet metal bending assembly.

[0076] Furthermore, if Fig.10 and Fig.11 As shown, the distribution box also includes a collection board 5, one end of which is installed in the box body 11, and the other end of the collection board 5 is provided with a gold finger 51, which is used to be plugged into the insertion end 43 of the circuit breaker 4; the collection board 5 is essentially an electronic circuit board, which is used to collect electrical parameters such as output current, voltage, temperature, and switch status in the circuit breaker 4.

[0077] The specific assembly process of the power distribution box in this embodiment is as follows:

[0078] Step 1: Weld and fix the reinforcing ribs 15 to the box body 11 and the cover plate 13 respectively, then install the upper mounting plate 14 to the cover plate 13 , and install the lower mounting plate 12 to the box body 11 .

[0079] Step 2: fix the second insulating member 2112 located at the upper layer to the upper mounting plate 14 , and fix the second insulating member 2112 located at the lower layer to the lower mounting plate 12 .

[0080] Step three, for the upper copper busbar 3, put the elastic member 22 on the second end 32 of the lower copper busbar 3, that is, insert the second end 32 of the copper busbar 3 into the clamping groove 2211 of the elastic member 22; then place the second end 32 of the lower copper busbar 3 and the elastic member 22 in the installation groove 2114 of the lower second insulating member 2112, install the first end 31 of the lower copper busbar 3 into the through hole 2113 of the first insulating member 2111 by bolts, and connect the lower copper busbar 3.

[0081] Step 4: For the upper copper bar 3, the elastic member 22 is sleeved on the second end 32 of the upper copper bar 3, that is, the second end 32 of the copper bar 3 is plugged into the clamping groove 2211 of the elastic member 22; the second end 32 of the upper copper bar 3 and the elastic member 22 are placed in the mounting groove 2114 of the upper second insulating member 2112, and the first end 31 of the upper copper bar 3 is installed in the through hole 2113 of the first insulating member 2111 by bolts, and the upper copper bar 3 is wired; the first support member 212 is placed between the two second insulating members 2112, and ... second end 32 of the upper copper bar 3 and the elastic member 22 are placed in the mounting groove 2114 of the upper second insulating member 2112, and the second end 31 of the upper copper bar 3 and the elastic member 22 are placed in the mounting groove 2114 of the upper second insulating member 2112, and the second end 31 of the upper copper bar 3 and the elastic member 22 are placed in the mounting groove The second supporting member 213 is placed between two second insulating members 2112, and the two first insulating members 2111 and the first supporting member 212 are connected by a first fastener 215, and the two second insulating members 2112 and the second supporting member 213 are connected by a second fastener 216. At this time, since the third insulating member 214 and the two adjacent first supporting members 212 and the second supporting member 213 are an integrally formed structure, the entire copper busbar fixing device 2 can be assembled into the shell 1.

[0082] Step five: fix one end of the collection board 5 into the box body 11 , and then fix the cover plate 13 to the opening of the box body 11 .

[0083] Step six, push the circuit breaker 4 between the upper and lower copper bars 3 through the two second insulating parts 2112, so that the two groups of copper bars 3 respectively contact the incoming terminal 41 and the outgoing terminal 42 of the circuit breaker 4, and at this time, the gold finger 51 on the other end of the acquisition board 5 is plugged into the insertion end 43 of the circuit breaker 4 to realize the overlapping path between the circuit breaker 4 and the copper bar 3.

[0084] The copper busbar fixing device 2 in this embodiment is provided with a fixing body and an elastic member 22 which cooperate with each other, and utilizes the elastic deformation of the elastic member 22, so as to not only ensure that the contact area between the copper busbar 3 and the circuit breaker 4 is sufficient, but also ensure that the overlapping reliability between the circuit breaker 4 and the copper busbar 3 is still high after the circuit breaker 4 is pulled out multiple times, and is conducive to the insertion and removal of the circuit breaker 4, saving time and effort.

[0085] Embodiment 2

[0086] This embodiment provides a copper bar fixing device 2, which is basically the same as the copper bar fixing device 2 in the first embodiment, except that the specific structure of the fixing body is different. Fig.12 and Fig.13As shown, the fixed body in this embodiment includes an insulating frame 23, in which a cavity 231 is formed, and the cavity 231 is used for inserting the circuit breaker 4. A group of limiting grooves 232 are respectively provided at the top and bottom ends of the cavity 231, and the two groups of limiting grooves 232 are respectively used to install two groups of copper bars 3. A card slot 233 is provided in the limiting groove 232, and the second end 32 of the copper bar 3 is plugged into the card slot 233; and a baffle 234 is also provided in the insulating frame 23, and a baffle 234 is provided above the limiting groove 232, and the first end 31 of the copper bar 3 is limited between the limiting groove 232 and the baffle 234, so that the copper bar 3 can be limited in the insulating frame 23.

[0087] In this embodiment, the insulating frame 23 and the baffle 234 are integrally formed. At this time, the structure of the elastic member 22 disposed on the second end 32 of the copper busbar 3 is not limited, as long as the elastic member 22 can be connected to the copper busbar 3 and can generate elastic deformation.

[0088] By integrating the two groups of copper busbars 3 into the insulating frame 23, the copper busbars 3 and the insulating frame 23 can be integrated into an accessory module, and then the accessory module can be installed as a whole into the shell 1, so that the installation is simple and convenient, which is more conducive to speeding up the assembly efficiency of the entire copper busbar fixing device 2, and making the structure and assembly of the fixing body relatively simple.

[0089] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A copper busbar fixing device, used for fixing a copper busbar (3), characterized in that: include: A fixed body, in which the first end (31) of the copper busbar (3) is installed; An elastic member (22), the elastic member (22) being arranged at the second end (32) of the copper bar (3), and the elastic member (22) and the second end (32) of the copper bar (3) are both located in the fixed body, the third end (33) of the copper bar (3) is used to contact the incoming line terminal (41) or the outgoing line terminal (42) of the circuit breaker (4), the third end (33) is located between the first end (31) and the second end (32), and the elastic member (22) is used to make the third end (33) elastically abut against the incoming line terminal (41) or the outgoing line terminal (42).

2. The copper busbar fixing device according to claim 1, characterized in that: The elastic member (22) comprises: A bending plate (221) and an abutment plate (222), one end of the bending plate (221) is formed with a clamping groove (2211), the second end (32) of the copper busbar (3) is inserted into the clamping groove (2211), the other end of the bending plate (221) is connected to the abutment plate (222), the abutment plate (222) and the clamping groove (2211) are arranged on two opposite sides of the bending plate (221), and the abutment plate (222) can drive the third end (33) of the copper busbar (3) to elastically abut against the incoming line end (41) or the outgoing line end (42) under the abutment action of the inner wall surface of the fixed body.

3. The copper busbar fixing device according to claim 2, characterized in that: The top of the abutment plate (222) can abut against the inner wall surface of the fixed body.

4. The copper busbar fixing device according to claim 2, characterized in that: The bending plate (221) and the abutting plate (222) are an integrally formed structure.

5. The copper busbar fixing device according to any one of claims 1 to 4, characterized in that: The fixing body comprises two groups of fixing components (211), and the two groups of fixing components (211) are arranged at intervals to fix two groups of copper bars (3) respectively; the fixing components (211) comprise: a first insulating member (2111), wherein the first end (31) of the copper busbar (3) is installed in the first insulating member (2111); The second insulating member (2112) is spaced apart from one side of the first insulating member (2111) and is located on one side of the circuit breaker (4); the elastic member (22) and the second end (32) of the copper busbar (3) are both confined within the second insulating member (2112); and the circuit breaker (4) is inserted between the two groups of the copper busbars (3) through interference fit between the two second insulating members (2112).

6. The copper busbar fixing device according to claim 5, characterized in that: The first insulating member (2111) is provided with a plurality of through holes (2113), and the first end (31) of one of the copper bars (3) is installed in one of the through holes (2113); the second insulating member (2112) is provided with a plurality of mounting grooves (2114), and the second end (32) of one of the copper bars (3) extends into one of the mounting grooves (2114), and the elastic member (22) can drive the third end (33) of the copper bar (3) to elastically abut against the incoming line end (41) or the outgoing line end (42) under the abutting action of the inner wall surface of the mounting groove (2114); and / or A first support member (212) is provided between the first insulating members (2111) in the two groups of the fixing assemblies (211), and a first fastener (215) is connected to the two first insulating members (2111) and the first support member (212); a second support member (213) is provided between the second insulating members (2112) in the two groups of the fixing assemblies (211), and a second fastener (216) is connected to the two second insulating members (2112) and the second support member (213); A third insulating member (214) is connected between two adjacent first supporting members (212) and second supporting members (213).

7. The copper busbar fixing device according to claim 1, characterized in that: The fixed body comprises: An insulating frame (23), wherein a cavity (231) is formed in the insulating frame (23), wherein a group of limiting grooves (232) are respectively provided at the top and bottom of the cavity (231), wherein the two groups of limiting grooves (232) are respectively used to install two groups of copper bars (3), wherein a clamping groove (233) is provided in the limiting groove (232), and the second end (32) of the copper bar (3) is plugged into the clamping groove (233); A baffle (234) is also provided in the insulating frame (23), and the baffle (234) is provided above the limiting groove (232), and the first end (31) of the copper busbar (3) is limited between the limiting groove (232) and the baffle (234).

8. A power distribution box, characterized in that: The invention comprises a circuit breaker (4), a housing (1), a copper busbar (3) and a copper busbar fixing device as claimed in any one of claims 1 to 7, wherein the copper busbar fixing device is installed in the housing (1), two groups of the copper busbars (3) are arranged opposite to each other in the housing (1), and the circuit breaker (4) is installed between the two groups of the copper busbars (3) by plugging.

9. The power distribution box according to claim 8, characterized in that: The housing (1) comprises: A box body (11), the box body (11) having an opening, a lower mounting plate (12) being mounted inside the box body (11), and a bottom end of the fixed body being mounted to the lower mounting plate (12); A cover plate (13), the cover plate (13) is arranged to cover the opening, an upper mounting plate (14) is installed inside the cover plate (13), and the top end of the fixed body is installed to the upper mounting plate (14).

10. The power distribution box according to claim 9, characterized in that: The housing (1) further comprises: Reinforcing ribs are provided on the box body (11) and the cover plate (13) respectively.

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