阅读说明：本技术 一种继电器固定机构 (Relay fixing mechanism ) 是由 冷健雄 彭戈 张初华 李春霞 杜冰 汪杨 李小双 刘磊 于 2021-10-28 设计创作，主要内容包括：本发明公开了一种继电器固定机构,涉及继电器安装技术领域,包括一种继电器固定机构,包括安装座以及安装在安装座一边上的继电器本体。本发明有两种电路保护模式,模式一,当电流过大的时候,第一电容片的底部和第二电容片之间放电料增大,此时产生温度,氦气受温度影响发生膨胀,此时对复位组件工作的底部施加作用力,陶瓷体向下移动,此时第二电容片引出部分形成一个的插套与固定端子相互脱离,完成断电,温度恢复正常后,复位组件将陶瓷体复位,接通电路；模式二,当瞬时发电量过大,温度过高,焊剂块上耐高温焊剂融化,使焊剂块掉落,此时氦气排出,空气电阻增加,使其无法放电,这样可以防止火灾发生。(The invention discloses a relay fixing mechanism, relates to the technical field of relay installation, and comprises a relay fixing mechanism which comprises an installation base and a relay body arranged on one side of the installation base. The invention has two circuit protection modes, wherein in the first mode, when the current is overlarge, the discharge material between the bottom of the first capacitor plate and the second capacitor plate is increased, the temperature is generated at the moment, the helium expands under the influence of the temperature, the acting force is applied to the bottom of the work of the resetting component at the moment, the ceramic body moves downwards, the leading-out part of the second capacitor plate forms a plug bush which is mutually separated from a fixed terminal, the power failure is completed, and after the temperature returns to be normal, the resetting component resets the ceramic body and switches on the circuit; and in the second mode, when the instantaneous power generation is overlarge and the temperature is overhigh, the high-temperature-resistant welding flux on the welding flux block melts, so that the welding flux block falls, helium is discharged at the moment, the air resistance is increased, and the welding flux cannot discharge electricity, thereby preventing fire from happening.)

1. The utility model provides a relay fixing mechanism, includes mount pad (1) and installs relay body (4) on one side of mount pad (1), its characterized in that: the middle part of the outer wall of the bottom of the mounting seat (1) is provided with a trigger assembly (8), the trigger assembly (8) comprises a ceramic body (801) with a cylindrical appearance, a regulating cylinder inserted on the outer wall of one side of the ceramic body (801), two ceramic branch pipes (802) inserted on the outer walls of two sides of the ceramic body (801), a reset assembly installed inside the ceramic branch pipes (802), a first capacitance sheet (805) and a second capacitance sheet (810) which are respectively installed on the inner wall of the bottom and the inner wall of the top of the ceramic body (801), the inner wall of the regulating cylinder is provided with a regulating column (804) through threads, one end of the regulating column (804) located inside the regulating cylinder is fixedly provided with a first leather cup (803), the outer peripheral wall of the first leather cup (803) is in close contact with the inner wall of the regulating cylinder, and the bottom of the first capacitance sheet (805) and the top of the second capacitance sheet (810) are respectively provided with leading-out parts outside the ceramic body (801), the lead-out part of the first capacitor plate (805) forms a contact metal sheet (806), the lead-out part of the second capacitor plate (810) forms an inserting sleeve, the bottom end position and the top end position of the inner wall of the vertical part of the ceramic branch pipe (802) are respectively fixed with a limiting ring (814), the limiting ring (814) is located below the reset assembly, the outer peripheral wall of the ceramic body (801) is fixed with a shell (7), the outer wall of one side of the ceramic body (801) is provided with an air outlet, and the inner wall of the air outlet is welded with a welding flux block (813).

2. The relay fixing mechanism according to claim 1, wherein: the reset assembly comprises a fixing column (808) which forms sliding fit with the inner peripheral wall of a top limiting ring (814), a second limiting plate (812) and an installation circular plate (807) which are fixed to the bottom and the top of the fixing column (808) respectively, a second leather cup (811) fixed to the top of the second limiting plate (812) and a second spring (809) sleeved on the outer peripheral wall of the fixing column (808), wherein two ends of the second spring (809) are in contact with the second leather cup (811) and the installation circular plate (807) respectively.

3. The relay fixing mechanism according to claim 1, wherein: dividing plates (14) are fixed on the inner walls of two sides of the mounting seat (1), the dividing plates (14) divide the mounting seat (1) into an inserting cavity and a connecting wire cavity, the inserting cavity is close to the relay body (4), four inserting cylinders distributed in an annular shape at equal intervals are fixed on the inner wall of one side of the inserting cavity, four inserting holes at equal intervals are formed in the outer wall of one side of each dividing plate (14), the four inserting holes correspond to the four inserting cylinders one by one, polarity terminals (10) are fixed on the inner wall of each inserting cylinder, the inserting ends of the polarity terminals (10) are inserted into the inner walls of the inserting holes, four plugs aligned with the four polarity terminals (10) one by one and matched with each other are arranged on the outer wall of one side of the relay body (4), a mounting panel (3) is fixed on the outer wall of one side, facing the relay body (4), of the mounting seat (1), a protection mechanism is arranged between the mounting panel (3) and the inserting cylinder, and a rear cover (9) is fixed on one side of the inner peripheral wall of the connecting line cavity.

4. A relay fixing mechanism according to claim 3, wherein: protection mechanism includes vertical setting at protruding piece, the outer wall middle part of one side inner wall middle part in grafting chamber and offers sliding port's shutter (11), fix square, two on protruding piece one side outer wall top position fix respectively on sliding port bottom inner wall and square bottom outer wall cup joint round piece (13) and both ends inner wall respectively cup joint at two third spring (12) that cup joint round piece (13) periphery walls, the both sides inner wall slidable mounting of square is on sliding port's inner wall, shutter (11) outward appearance is like the cross plate, four termination points department on shutter (11) one side outer wall have all seted up the square hole, four the square hole aligns with four grafting section of thick bamboo one by one, is located top and bottom the square hole top is the inclined plane and inclines downwards to the grafting intracavity.

5. The relay fixing mechanism according to claim 4, wherein: the middle part of the inner wall of the bottom of the connecting wire cavity is provided with a first fixing barrel, the first fixing inner wall is fixed with a fixing terminal, the inserting end of the fixing terminal is inserted into the polarity terminal (10) positioned at the bottom, and the inserting end of the fixing terminal and the leading-out part of the second capacitor plate (810) form sliding insertion matching.

6. The relay fixing mechanism according to claim 5, wherein: the wire installation component (2) that three equidistance distributes are installed at the top of mount pad (1), a wire installation component (2) is installed to the bottom of shell (7), wire installation component (2) are located including fixed body (201) of mount pad (1) are fixed on the top of mount pad (1), are located fixed body (201) on shell (7) are fixed in the bottom of shell (7), the rectangular channel has been seted up at one side outer wall middle part of fixed body (201), in order to be located the top the fixed body (201) top all has seted up the manhole with be located bottom fixed body (201) bottom, manhole and rectangular channel looks adaptation.

7. The relay fixing mechanism according to claim 6, wherein: wire installation component (2) still include arc sheetmetal (202) on one side inner wall of fixed rectangular channel and rotate and install comma briquetting (203), comma briquetting (203) turn right the cross section from a left side and constitute by a circle and rather than tangent sharp, comma briquetting (203) and rectangular channel turning point are located the tangent point department of circle and rather than tangent sharp, are located the top the bottom one end of arc sheetmetal (202) is located the line intracavity, and is three the bottom one end of arc sheetmetal (202) is connected through the wire with the spigot of three polarity terminal (10), with three top three polarity terminal (10) that arc sheetmetal (202) are connected do not include polarity terminal (10) that are located the bottom, arc sheetmetal (202) that are located the bottom weld with the portion of drawing forth of first electric capacity piece (805).

8. The relay fixing mechanism according to claim 7, wherein: the wire installation component (2) further comprises buckles (204) which are installed on the outer wall of one side of the fixing body (201) and located on two sides of the rectangular groove, and the buckles (204) are made of plastic.

9. The relay fixing mechanism according to claim 1, wherein: the outer wall of the two sides of the relay body (4) is fixed with a transverse hook (5), one end of the hook (5) far away from the relay body (4) is a right-angle trapezoidal body, a clamping component (6) matched with the hook (5) is installed at the bottom of the mounting seat (1), the clamping component (6) comprises a plurality of guide posts (602) and concave plates (601) which are fixed at the bottom of the mounting seat (1) in a separated mode, guide holes distributed at equal intervals are formed in the bottom of the concave plates (601), the guide posts (602) are slidably mounted on the inner wall of the guide holes, the outer wall of the bottom of the guide posts (602) is fixed with a first limiting plate (604), first springs (603) are sleeved on the outer peripheral wall of the guide posts (602), and two ends of the first springs (603) are respectively contacted with the first limiting plate (604) and the concave plates (601), and one corner at two ends of the top of the concave plate (601) is an inclined plane.

Technical Field

The invention relates to the technical field of relay installation, in particular to a relay fixing mechanism.

Background

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

Chinese patent publication No. CN110010411A discloses a relay fixing structure, which includes a base; the cantilever elastic sheet is connected with the cantilever of the base, and a positioning part matched with the conducting strip of the relay is arranged on the cantilever elastic sheet; the positioning piece is parallel to the cantilever elastic piece, a clamping groove used for accommodating the conducting piece is formed on the side wall of the base, the positioning piece and the cantilever elastic piece together, and one end of the conducting piece extends into the clamping groove. According to the relay fixing structure provided by the invention, the conducting strip of the relay is abutted to the clamping groove through the cantilever elastic sheet and the positioning sheet, and the cantilever elastic sheet is also provided with the positioning part matched with the conducting strip, so that the conducting strip is prevented from sliding in the clamping groove, the relay does not need to be fixed by screws, the assembling working hour can be shortened, and the contact resistance cannot be increased.

However, the existing relay fixing structure has the following defects that the common relay mounting seat is made of plastic, and when the electricity consumption peak in summer occurs, the medium current of the circuit can generate large heat, so that the mounting seat is possibly melted.

Disclosure of Invention

The invention aims to provide a relay fixing mechanism to solve the technical problem in the prior art.

The invention provides a relay fixing mechanism which comprises a mounting seat and a relay body arranged on one side of the mounting seat, wherein a trigger assembly is arranged in the middle of the outer wall of the bottom of the mounting seat, the trigger assembly comprises a ceramic body, an adjusting cylinder, two ceramic branch pipes, a reset assembly, a first capacitor plate and a second capacitor plate, the ceramic body is cylindrical in appearance, the adjusting cylinder is inserted on the outer wall of one side of the ceramic body, the two ceramic branch pipes are inserted on the outer walls of the two sides of the ceramic body, the reset assembly is arranged in the ceramic branch pipes, the first capacitor plate and the second capacitor plate are respectively arranged on the inner wall of the bottom and the inner wall of the top of the ceramic body, an adjusting column is arranged on the inner wall of the adjusting cylinder through threads, a first leather cup is fixed at one end of the adjusting column, the outer peripheral wall of the first leather cup is tightly contacted with the inner wall of the adjusting cylinder, leading-out parts are arranged on the bottom of the first capacitor plate and the top of the second capacitor plate outside the ceramic body, and a contact metal sheet is formed on the leading-out part of the first capacitor plate, the lead-out part of the second capacitor plate forms an inserting sleeve, the bottom end position and the top end position of the inner wall of the vertical part of the ceramic branch pipe are respectively fixed with a limiting ring, the limiting rings are located below the reset assembly, a shell is fixed to the outer peripheral wall of the ceramic body, an air outlet hole is formed in the outer wall of one side of the ceramic body, and a welding flux block is welded to the inner wall of the air outlet hole.

Further, the subassembly that resets includes and forms sliding fit's fixed column, the second limiting plate and the installation plectane of fixing at fixed column bottom and top respectively, fixes the second leather cup on second limiting plate top and cup joints the second spring on the fixed column periphery wall with the inner peripheral wall of top spacing ring, the both ends of second spring contact with second leather cup and installation plectane respectively.

Furthermore, partition plates are fixed on the inner walls of the two sides of the mounting seat and divide the mounting seat into an inserting cavity and a connecting wire cavity, the plug-in cavity is close to the relay body, four plug-in cylinders which are distributed annularly at equal intervals are fixed on the inner wall of one side of the plug-in cavity, four insertion holes with equal distance are arranged on the outer wall of one side of the partition plate, the four insertion holes correspond to the four insertion cylinders one by one, the inner wall of the plug-in cylinder is fixed with a polarity terminal, the plug end of the polarity terminal is plugged in the inner wall of the insertion hole, the outer wall of one side of the relay body is provided with four plugs which are aligned and matched with the four polarity terminals one by one, the relay comprises a relay body, a mounting surface is fixed on the outer wall of the mounting surface, facing one side of the relay body, of the mounting surface, a protection mechanism is installed between the mounting surface and a plug-in barrel, and a rear cover is fixed on one side of the inner peripheral wall of a connecting line cavity.

Further, protection mechanism includes that vertical setting is at protruding piece, the outer wall middle part of grafting chamber on the one side inner wall middle part seted up the guard gate of sliding port, fix on protruding piece on one side outer wall top position square, two fix respectively on sliding port bottom inner wall and square bottom outer wall cup joint the third spring on two cup joint the round piece periphery walls with both ends inner wall respectively, the both sides inner wall slidable mounting of square is on the inner wall of sliding port, the guard gate outward appearance is like the cross plate, four square holes, four are all seted up to four termination departments of outer wall on one side of the guard gate, four the square hole aligns with four grafting section of thick bamboo one by one, is located top and bottom the square hole top is the inclined plane and slopes to the grafting intracavity downwards.

Furthermore, a first fixed cylinder is arranged in the middle of the inner wall of the bottom of the connecting wire cavity, a fixed terminal is fixed on the first fixed inner wall, the inserting end of the fixed terminal is inserted into the polarity terminal at the bottom, and the inserting end of the fixed terminal and the leading-out part of the second capacitor plate form sliding insertion matching.

Furthermore, three wire installation components distributed equidistantly are installed at the top of the installation seat, one wire installation component is installed at the bottom of the shell and comprises a fixing body, the fixing body of the installation seat is fixed to the top of the installation seat and located at the bottom of the shell, a rectangular groove is formed in the middle of the outer wall of one side of the fixing body, an inlet hole is formed in the top of the fixing body and the bottom of the fixing body located at the bottom of the fixing body, and the inlet hole is matched with the rectangular groove.

Further, the wire installation component still includes the arc sheetmetal on the one side inner wall of fixed rectangular channel and rotates and installs the comma briquetting, the comma briquetting is constituteed by a circle and rather than tangent sharp from a left side to right cross section, the comma briquetting is located the tangent point department of circle and rather than tangent sharp with the rectangular channel rotation point, is located the top the bottom one end of arc sheetmetal is located the line intracavity, and is three the bottom one end of arc sheetmetal is connected through the wire with the spigot end of three polarity terminal, with three top the three polarity terminal that the arc sheetmetal is connected does not include the polarity terminal that is located the bottom, and the arc sheetmetal that is located the bottom welds with the extraction part of first electric capacity piece mutually.

Further, the wire installation component further comprises buckles arranged on the outer wall of one side of the fixing body and located on two sides of the rectangular groove, and the buckles are made of plastic.

Further, the both sides outer wall of relay body is fixed with horizontal pothook, the one end that relay body was kept away from to the pothook is right angle trapezoidal body, the joint subassembly with pothook looks adaptation is installed to the bottom of mount pad, the joint subassembly includes that a plurality of equidistance are apart guide post and the notch plate of fixing in the mount pad bottom, the guiding hole that the equidistance distributes is seted up to the bottom of notch plate, guide post slidable mounting is on the inner wall of guiding hole, the bottom outer wall of guide post is fixed with first limiting plate, first spring has been cup jointed to the periphery wall of guide post, the both ends of first spring contact with first limiting plate and notch plate respectively, a top both ends edge of notch plate is the inclined plane.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention has two circuit protection modes, one mode is that the helium filling space filled in the ceramic body can be controlled by rotating the adjusting column, namely, the helium quality is unchanged, the space is enlarged or reduced, the helium can be enlarged or reduced, so that the temperature sensing sensitivity is enhanced or weakened, when the current is overlarge, the discharging material between the bottom of the first capacitor plate and the second capacitor plate is increased, the temperature is generated at the moment, the helium expands under the influence of the temperature, acting force is applied to the bottom of the work of the reset assembly at the moment, the reset assembly passively works, the ceramic body moves downwards, the leading-out part of the second capacitor plate forms a plug bush which is mutually separated from a fixed terminal to complete power failure, and after the temperature returns to normal, the reset assembly resets the ceramic body and switches on the circuit; and in the second mode, when the instantaneous power generation is overlarge and the temperature is overhigh, the high-temperature-resistant welding flux on the welding flux block melts, so that the welding flux block falls, helium is discharged at the moment, the air resistance is increased, and the welding flux cannot discharge electricity, thereby preventing fire from happening.

(2) The protection mechanism is arranged, when a plug on the relay body is inserted, the plug can firstly contact the inclined plane of the square hole of the protection door, the protection door is stressed to move upwards, the third spring is compressed, the square hole is aligned with the polar terminal, and then the plug can be inserted.

(3) The invention is provided with a protection mechanism, a peeled lead is inserted into the inlet hole, the comma pressing blocks at the top are taken as a row, the comma pressing blocks are rotated upwards, the comma pressing block round block part drives the lead downwards through friction at the moment, meanwhile, pressure is applied to one side of the lead, the arc-shaped metal sheet is flattened at the moment, counterforce is generated, the lead can be tightly attached to the arc-shaped metal sheet, the good conductivity is kept, the lead can be quickly installed, and the installation time is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a first perspective structure of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of a partially exploded structure from a first perspective in accordance with the present invention;

FIG. 4 is a schematic diagram of a second perspective partially exploded view of the present invention;

FIG. 5 is a perspective view of the trigger assembly of the present invention;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is a schematic front view of the present invention;

FIG. 8 is a left cut-away view of the present invention;

FIG. 9 is a left side view of the present invention;

FIG. 10 is a partial cutaway view taken at A-A of FIG. 9;

fig. 11 is a view showing the installation of the protection door according to the present invention.

Reference numerals:

1. a mounting seat; 2. a wire mounting assembly; 201. a fixed body; 202. an arc-shaped metal sheet; 203. comma briquetting; 204. buckling; 3. installing a panel; 4. a relay body; 5. a hook; 6. a clamping assembly; 601. a concave plate; 602. a guide post; 603. a first spring; 604. a first limit plate; 7. a housing; 8. a trigger component; 801. a ceramic body; 802. a ceramic branch pipe; 803. a first leather cup; 804. an adjustment column; 805. a first capacitor plate; 806. a contact metal sheet; 807. mounting a circular plate; 808. fixing a column; 809. a second spring; 810. a second capacitor plate; 811. a second leather cup; 812. a second limiting plate; 813. a solder mass; 814. a limiting ring; 9. a rear cover; 10. a polarity terminal; 11. a protective door; 12. a third spring; 13. sleeving a round block; 14. and (5) dividing the plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.

The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 11, an embodiment of the present invention provides a relay fixing mechanism, which includes a mounting base 1 and a relay body 4 mounted on one side of the mounting base 1, a trigger assembly 8 is mounted in the middle of an outer wall of a bottom of the mounting base 1, the trigger assembly 8 includes a ceramic body 801 having a cylindrical appearance, a tuning cylinder inserted in an outer wall of one side of the ceramic body 801, two ceramic branch pipes 802 inserted in outer walls of two sides of the ceramic body 801, a reset assembly mounted in the ceramic branch pipes 802, and a first capacitance plate 805 and a second capacitance plate 810 mounted on an inner wall of a bottom and a top of the ceramic body 801 respectively, an adjusting column 804 is mounted on an inner wall of the tuning cylinder through a screw thread, a first cup 803 is fixed to one end of the adjusting column 804 located in the tuning cylinder, an outer peripheral wall of the first cup 803 is in close contact with an inner wall of the tuning cylinder, a lead-out portion is provided at both a bottom of the first capacitance plate 805 and a top of the second capacitance plate 810 outside the ceramic body 801, the leading-out part of the first capacitor plate 805 forms a contact metal sheet 806, the leading-out part of the second capacitor plate 810 forms an inserting sleeve, the bottom end position and the top end position of the inner wall of the vertical part of the ceramic branch pipe 802 are respectively fixed with a limiting ring 814, the limiting ring 814 is positioned below the reset assembly, the outer peripheral wall of the ceramic body 801 is fixed with a shell 7, the outer wall of one side of the ceramic body 801 is provided with an air outlet, and the inner wall of the air outlet is welded with a welding flux block 813.

The specific working method comprises the following steps: at first screw up completely that adjusts post 804 be located transfer a section of thick bamboo inside, fill helium this moment to ceramic body 801 inside, because helium is comparatively sensitive to the temperature reaction, the subassembly that resets this moment does not react, then use high temperature resistant welding to weld solder block 813 in the venthole, mode one: the volume of a gas containing space of the whole ceramic body 801 can be controlled by rotating the adjusting column 804, so that helium filling space filled in the ceramic body 801 is controlled, namely, the helium can be enlarged or reduced due to unchanged helium quality, so that the helium can be enlarged or reduced, and the temperature sensing sensitivity becomes stronger or weaker, when the current is overlarge, the discharge material between the bottom of the first capacitor plate 805 and the second capacitor plate 810 is increased, the temperature is generated, the helium expands under the influence of the temperature, acting force is applied to the bottom of the reset assembly, the reset assembly works passively, the ceramic body 801 moves downwards, the lead-out part of the second capacitor plate 810 forms a plug bush to be separated from a fixed terminal, the power failure is completed, and after the temperature returns to normal, the reset assembly resets the ceramic body 801 and switches on a circuit; and a second mode: when the instantaneous power generation is too large and the temperature is too high, the high-temperature resistant welding flux on the welding flux block 813 melts, so that the welding flux block 813 falls, helium is discharged at the moment, the air resistance is increased, and the welding flux cannot discharge electricity, so that a fire can be prevented; here, it should be noted that the fixed terminal is a constant positive electrode inlet end.

Specifically, the reset assembly comprises a fixed column 808 forming a sliding fit with the inner peripheral wall of the top limit ring 814, a second limit plate 812 and an installation circular plate 807 fixed at the bottom and the top of the fixed column 808 respectively, a second leather cup 811 fixed at the top of the second limit plate 812, and a second spring 809 sleeved on the outer peripheral wall of the fixed column 808, wherein two ends of the second spring 809 are in contact with the second leather cup 811 and the installation circular plate 807 respectively.

The specific working method comprises the following steps: the resetting assembly is arranged to restore the ceramic body 801 to the original position, the helium gas expands under the influence of temperature, the acting force of the second limiting plate 812 is applied to the bottom of the working position of the resetting assembly, and the second spring 809 is compressed.

Specifically, the inner walls of two sides of the mounting seat 1 are fixed with partition plates 14, the partition plates 14 divide the mounting seat 1 into an inserting cavity and a connecting line cavity, the inserting cavity is close to the relay body 4, one side of the inserting cavity is fixed with four inserting cylinders distributed annularly at equal intervals, one side of the outer wall of the partition plates 14 is provided with four inserting holes at equal intervals, the four inserting holes correspond to the four inserting cylinders one by one, the inner wall of the inserting cylinder is fixed with polarity terminals 10, the inserting ends of the polarity terminals 10 are inserted into the inner walls of the inserting holes, one side of the outer wall of the relay body 4 is provided with four plugs which are aligned with the four polarity terminals 10 one by one and are matched with each other, the outer wall of the mounting seat 1 facing one side of the relay body 4 is fixed with a mounting panel 3, a protection mechanism is installed between the mounting panel 3 and the inserting cylinders, and one side of the inner peripheral wall of the connecting line cavity is fixed with a rear cover 9.

The specific working method comprises the following steps: the two cavities are separated, the work of the two cavities is not interfered with each other, and the work safety can be improved.

The protection mechanism comprises a vertical protruding block arranged on the middle part of the inner wall on one side of the splicing cavity, a protective door 11 of a sliding port is arranged in the middle of the outer wall on one side, a square block fixed on the top end position of the outer wall on one side of the protruding block, two sleeved round blocks 13 fixed on the inner wall on the bottom of the sliding port and on the outer wall on the bottom of the square block and three springs 12 sleeved on the outer peripheral walls of the two sleeved round blocks 13 respectively, the inner walls on the two sides of the square block are slidably mounted on the inner wall of the sliding port, the appearance of the protective door 11 is similar to a cross plate, square holes are formed in four end points of the outer wall on one side of the protective door 11, the four square holes are aligned with four splicing barrels one by one, and the top of the square holes on the top and the bottom is an inclined plane and inclines downwards into the splicing cavity.

The specific working method comprises the following steps: when the plug inserts on relay body 4, can contact 11 square hole inclined planes of shutter earlier, 11 atresss rebound of shutter this moment, third spring 12 compressed this moment, and the square hole aligns with polarity terminal 10, just can insert, sets up protection machanism, has the foreign object misplug in the time of can preventing the construction, produces danger.

Specifically, a first fixing cylinder is arranged in the middle of the inner wall of the bottom of the connecting wire cavity, a fixing terminal is fixed on the first fixing inner wall, the inserting end of the fixing terminal is inserted into the polarity terminal 10 located at the bottom, and the inserting end of the fixing terminal and the leading-out part of the second capacitor plate 810 form sliding insertion matching.

The specific working method comprises the following steps: the male end of the fixed terminal is slidably engaged with the lead-out portion of the second capacitor plate 810, thereby facilitating mounting and block connection.

Specifically, three conducting wire installation components 2 which are distributed equidistantly are installed at the top of an installation seat 1, one conducting wire installation component 2 is installed at the bottom of a shell 7, the conducting wire installation component 2 comprises a fixing body 201, the fixing body 201 located on the installation seat 1 is fixed at the top of the installation seat 1, the fixing body 201 located on the shell 7 is fixed at the bottom of the shell 7, a rectangular groove is formed in the middle of the outer wall of one side of the fixing body 201, inlet holes are formed in the top of the fixing body 201 located at the top and the bottom of the fixing body 201 located at the bottom, the inlet holes are matched with the rectangular groove, the conducting wire installation component 2 further comprises an arc-shaped metal sheet 202 on the inner wall of one side of the rectangular groove and a comma pressing block 203 which is installed in a rotating mode, the cross section of the comma pressing block 203 from left to right is composed of a circle and a straight line which is tangent to the circle, the comma pressing block 203 and the rotating point of the rectangular groove are located at the tangent point of the circle and the straight line which is tangent to the circle, the bottom ends of the top arc-shaped metal sheets 202 are located in the connecting line cavity, the bottom ends of the three arc-shaped metal sheets 202 are connected with the plug ends of the three polarity terminals 10 through conducting wires, the three polarity terminals 10 connected with the three top arc-shaped metal sheets 202 do not include the polarity terminal 10 located at the bottom end, and the bottom arc-shaped metal sheets 202 are welded with the leading-out portion of the first capacitor plate 805.

The specific working method comprises the following steps: the peeled conducting wire is inserted into the inlet hole, the comma pressing blocks 203 at the top are taken as columns, the comma pressing blocks 203 are rotated upwards, the round blocks of the comma pressing blocks 203 drive the conducting wire downwards through friction at the moment, pressure is applied to one side of the conducting wire, the arc-shaped metal sheet 202 is flattened at the moment, counter force is generated, the conducting wire can be tightly attached to the arc-shaped metal sheet 202, and good conductivity is kept.

Specifically, the wire mounting assembly 2 further includes a buckle 204 mounted on one side of the outer wall of the fixing body 201 and located on two sides of the rectangular groove, and the buckle 204 is made of plastic.

The specific working method comprises the following steps: the buckle 204 is made of plastic, so that the buckle 204 has elasticity, and the buckle 204 and the comma pressing block 203 form clamping fit, thereby facilitating the stabilization of the comma pressing block 203.

Specifically, the both sides outer wall of relay body 4 is fixed with horizontal pothook 5, the one end that relay body 4 was kept away from to pothook 5 is right angle trapezoidal body, joint subassembly 6 with pothook 5 looks adaptation is installed to the bottom of mount pad 1, joint subassembly 6 includes that a plurality of equidistance are apart to fix guide post 602 and the notch plate 601 on mount pad 1 bottom, the guiding hole that the equidistance distributes is seted up to the bottom of notch plate 601, guide post 602 slidable mounting is on the inner wall of guiding hole, the bottom outer wall of guide post 602 is fixed with first limiting plate 604, first spring 603 has been cup jointed to the periphery wall of guide post 602, the both ends of first spring 603 contact with first limiting plate 604 and notch plate 601 respectively, the top both ends contained angle of notch plate 601 is the inclined plane.

The specific working method comprises the following steps: insert relay body 4 in the grafting end of each polarity terminal 10 through the plug, in this process, pothook 5 can contact the both ends of notch plate 601 earlier on relay body 4, make notch plate 601 move down, first spring 603 is compressed, when pothook 5 right trapezoid part surpasss the both ends of the process of notch plate 601, first spring 603 resets, make the top of notch plate 601 contact the non-right trapezoid part of pothook 5, accomplish the joint, improve relay body 4 and mount pad 1 stability this moment, make relay body 4 be difficult to drop from mount pad 1.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.