CN107887192A - A kind of environmentally friendly housing switchgear - Google Patents

Abstract

A kind of environmentally friendly housing switchgear, including：Hand switch actuator, it is spaced apart with the first side of the wall of the housing with environmental protection；Magnet, it is connected to the switch actuator；And magnetic response switch, the second side arrangement of its adjacent wall, wherein, the motion of switch actuator is to change the position of the magnet, to operate magnetic response switch.The environmentally friendly housing switchgear of technical scheme is easily installed in the environment of neighbouring relevant device, and meets security of enviromental protection standard.

Description

A kind of environmentally friendly housing switchgear

Technical field

The present invention relates to a kind of switchgear, more particularly to a kind of environmentally friendly housing switchgear.

Background technology

Environmental protection mode includes：Administration, law, economy, science and technology, spontaneous environmental protection organization among the people etc. are taken, is closed Reason utilizes natural resources, prevents the pollution and destruction of environment, can in the hope of the same humanistic environment of natural environment, economic environment common equilibrium Sustainable development, expand the reproduction of useful resources, ensure the good development of society.

Hand switch is generally used in Process Control System, to allow user's control to implement in Process Control System Distinct device operation.Hand switch is often couple to the electric component and/or circuit of the operation with control nearby device Housing.

The equipment of Process Control System may be mounted to that in industrial environment.In some cases, housing has to comply with environment Safety standard (for example, explosive-proof grade, dust-proof grade) is protected, so as in the environment of neighbouring relevant device.In this feelings Under shape, the hand switch for being couple to housing has to comply with security of enviromental protection standard.

In order to solve drawbacks described above, the present invention proposes a kind of environmentally friendly housing switchgear.

The content of the invention

In order to solve the above-mentioned deficiency in the presence of prior art, the present invention proposes a kind of environmentally friendly housing switchgear.

A kind of environmentally friendly housing switchgear, including：Hand switch actuator, itself and the wall of the housing with environmental protection First side is spaced apart；Magnet, it is connected to the switch actuator；And magnetic response switch, its second adjacent to the wall Side arrangement, wherein, the motion of the switch actuator is opened to change the position of the magnet with operating the magnetic response Close.

Preferably, the switch actuator and the magnet do not penetrate the wall of the housing.

Preferably, the housing is at least one in explosion-proof casing, dust-proof housing or ingress protection housing.

Preferably, the switch actuator is button or rotating device.

Preferably, the magnetic response switch is magnetic reed switch or hall effect sensor.

Preferably, when the switch actuator is in first position, the magnetic response switch detects the magnet, when When the switch actuator is in the second place different from the first position, the magnetic response switch will not detect described Magnet.

Preferably, the magnet is connected to the switch actuator by magnetic force.

Preferably, the magnetic response switch is arranged such that the magnetic response switch can only detect the magnet Magnetic field.

Another object of the present invention is to propose a kind of environmentally friendly housing switchgear, including：Housing, it has environmental protection And limit cavity；Panel, it is couple to the outer protuberance of the housing and is spaced apart with the wall of the housing；Hand switch activates Device, it is couple to the panel and is spaced apart with the wall, and the switch actuator has magnet；And magnetic response switch, It is arranged in the cavity of the housing relative to the switch actuator, when the switch actuator is in first position When, the magnet operates the magnetic response by the wall and switched.

Preferably, when the switch actuator is actuated to the second places different from the first position, the magnetic Body will not operate the magnetic response switch.

Preferably, in order to remain at least one in the explosive-proof grade of the housing, dust-proof grade or ingress protection grade, The switch actuator does not penetrate the wall of the housing.

Preferably, the switch actuator is limited by the panel hole accommodates.

Preferably, in addition to the safety lock of the housing is couple to, with limitation close to the switch actuator.

Preferably, in addition to it is couple to the second switch actuator of the panel and is arranged in the cavity to detect State the second magnetic response switch of second switch actuator.

Preferably, the second magnetic response switch and the switch actuator Magnetic isolation, and the magnetic response is opened Close the second magnet Magnetic isolation with the second switch actuator.

Compared with prior art, the present invention has the advantages that：

The environmentally friendly housing switchgear of technical scheme is easily installed in the environment of neighbouring relevant device, and Meet security of enviromental protection standard.

Brief description of the drawings

Fig. 1 is shown according to exemplary housing unit taught herein.

Fig. 2 shows the housing of the housing unit in Fig. 1.

Fig. 3 shows the housing unit of Fig. 1 including safety lock.

Fig. 4 A show the viewgraph of cross-section that not actuated position is according to exemplary hand switch taught herein.

Fig. 4 B show that Fig. 4 A hand switch is in the viewgraph of cross-section for starting position.

Fig. 5 A are the partial cross-sectional views of Fig. 1 housing unit, and the housing unit includes the figure in not actuated position 4A and Fig. 4 B hand switch.

Fig. 5 B are the partial cross-sectional views of Fig. 1 housing unit, and the housing unit is included in Fig. 4 A for starting position With Fig. 4 B hand switch.

Fig. 6 is another partial cross-sectional views of Fig. 1 housing unit.

Accompanying drawing is not drawn to.On the contrary, in order to illustrate multiple layers and region, the thickness of each layer can amplify in figure. As much as possible, in the the accompanying drawings and the following description, identical reference will be used for representing same or analogous part.

Embodiment

For a better understanding of the present invention, present disclosure is done further with reference to Figure of description and example Explanation.

Many known housings accommodate the electric component and/or circuit of the operation of the equipment in control process control system. Many housings include hand switch (for example, button, rotating device etc.) and/or indicator lamp, to allow user (for example, operation Person, engineer etc.) control relevant device operation.In some cases, housing is arranged near the equipment of Process Control System. In these cases, hand switch allows operation of the user in local boot equipment, and indicator lamp provides equipment to user The scene instruction of mode of operation.In order to allow housing to be arranged near relevant device, many known housings are arranged on In the mounted environment of equipment.For example, because some equipment are arranged on danger position, so many known housings are also mounted In danger position.

Many third-party agent mechanisms are (for example, American National fire prevention association (NFPA), FM global companys, Canadian standard Association (CSA), ATEX and International Electrotechnical Commission (IEC)) formulate environmental protection classification and to that will pacify Standard is proposed (for example, NFPA National Electrical specification (NEC), the IEC world mounted in the equipment and/or housing of danger position Protect (IP) specification and CSA Canadian electrical code (CEC)).For example, under these standards, danger position typically uses The region of combustible material, combustible material have to form the possibility of explosion environment.Some type of danger position needs housing essence peace Entirely, it is non-flammable and/or explosion-proof.For example, explosion-proof casing allows for bearing the blast of inside and prevents any spark, flashing, fiery point Or flame is spread in hull outside under hazardous environment.The IP66 grades of IP specifications are another environment protectment protections, for example, its It is required that housing prevents any dust, oil, water and/or other dangerous substances from entering the inside of housing.

Many known housings are limited by the wall of housing to process, cut and/or the opening of punching press and/or hole, to hold Receive the hand switch for being operably coupled to be arranged in the control assembly in the cavity of housing.In this case, hand switch is worn The surface of saturating housing is to be couple to the control assembly in the cavity for being arranged in housing.In order to prevent dust, oil, water and/or other Dangerous substance enter cavity through via to maintain the environmental protection grade of housing, many known housings include being arranged in manually Seal (for example, packing ring, O-ring etc.) on the wall of switch and housing between the wall of adjacent openings.Due to some known hands Dynamic switch is provided with packing ring and/or O-ring, and these known hand switches are calibrated for environmental protection.In some cases, by In seal (for example, the seal formed by elastomeric material) for a long time (for example, several years) exposed to incompatible steam and/ Or environment, seal can not prevent deleterious material from entering the cavity of housing.

Exemplary hand switch described herein is coupled to the panel of housing unit, and electric or electricity is accommodated without penetrating The wall of the housing of sub-component.Exemplary hand switch includes hand switch actuator and the connection being spaced apart with the outer wall of housing To the magnet of manual switch actuator.Magnetic response switchs arranges relative to the inner surface of hand switch actuator adjacent wall.For Operation magnetic response switch, switch actuator movement is to change the position that magnet switchs relative to magnetic response.For example, work as hand When dynamic switch actuator is in first position (for example, starting position), magnetic response switch detection magnet, when hand switch activates When device is in the second place (for example, not actuated position) different from first position, magnetic response switch will not detect magnet.

In certain embodiments, hand switch actuator is coupled to installing plate or panel.Panel is couple to the outer of housing Protuberance or highlighted wall are simultaneously spaced apart with the wall of housing.For example, hand switch actuator is accommodated in the hole of panel restriction, And the wall of housing will not be penetrated.Hand switch actuator does not penetrate the wall of housing, to maintain security of enviromental protection of housing etc. Level (for example, danger position grade, explosive-proof grade, IP66 grades, dust-proof grade, ingress protection grade).

In certain embodiments, housing unit includes the second hand switch and the second magnetic being arranged in the cavity of housing Responding to switch, the second manual switch actuator of the second hand switch are couple to panel.For example, the second magnetic response switch and hand Dynamic switch actuator Magnetic isolation, magnetic response switch the second magnet Magnetic isolation with being connected to the second manual switch actuator.

Fig. 1 is shown according to exemplary housing unit 100 taught herein.Housing unit 100 includes housing or shell 102 and it is couple to the installing plate or panel 104 of housing 102.For example, housing unit 100 meet environmental protection grade (for example, Danger position grade, explosive-proof grade, the IP66 grades of IP specifications, ingress protection grade) safety standard, and therefore can install In corresponding environment.In certain embodiments, housing unit 100 is formed by corrosion-resistant material (for example, stainless steel), to meet The safety requirements of corrosive environment.As shown in fig. 1, the Part I 106 of housing 102 via fastener 110 (for example, screw thread is tight Firmware) it is couple to the Part II 108 of housing 102.In order to meet the coupling of safety requirements, Part I 106 and Part II 108 Only material is taken over control (for example, the housing that dangerous substance, dust, oil, water etc. enter between Part I 106 and Part II 108 102.In addition, the housing unit 100 of illustrated embodiment includes being used for the sealing pipeline for accommodating distribution or opens 112, the distribution is by shell The electric component and/or circuit of body component 100 are operably coupled to other components of Process Control System.For example, seal pipe Road or opening 112 form sealing around accommodated distribution, to prevent material from entering housing unit 100.

As shown in fig. 1, highlighted wall or outer protuberance 114 are from the outer surface of the wall 118 of the Part II 108 of housing 102 116 (for example, first sides) are prominent.Panel 104 is couple to highlighted wall 114 via fastener 120 (for example, threaded fastener). In some embodiments, sealing is formed between panel 104 and highlighted wall 114, with prevent material panel 104 and housing 102 it Between pass through.In the embodiment shown, hand switch (for example, button, rotating device) 122,124,126 is coupled to housing unit 100 panel 104, the equipment that hand switch allows user (for example, operator, engineer) control process control system.Example Such as, each in hand switch 122,124,126 is accommodated by the corresponding opening of panel 104.

In certain embodiments, the instruction of indicator lamp 128,130,132,134 for being installed to panel 104 is operably coupled to The state of the equipment of hand switch 122,124,126.As shown in fig. 1, each in indicator lamp 128,130,132,134 by The corresponding opening of panel 104 accommodates, to allow indicator lamp 128,130,132,134 to be operably coupled to be arranged in housing Electric component and/or circuit in component 100.O-ring, seal and/or packing ring may be arranged at each indicator lamp 128,130, 132nd, between 134 and corresponding opening, to prevent material from entering housing unit 100 by these openings.In other embodiments In, housing unit 100 does not include the indicator lamp (for example, indicator lamp 128,130,132,134) for being couple to panel 104.

Fig. 2 shows the housing 102 of the housing unit 110 separated with panel 104 (Fig. 1).In the embodiment shown, housing 102 wall 118 and highlighted wall 114 limits the first cavity 202 of housing unit 100.Panel 104 is via fastener 120 (Fig. 1) quilt Highlighted wall 114 is couple to, to form the first cavity 202 between housing 102 and panel 104.As shown in Figure 2, fastener 120 (Fig. 1) is contained in the hole 204 limited by highlighted wall 114, and panel 104 is couple into housing 102.In some embodiments In, hole 204 is screw thread, to accommodate threaded fastener.The hole 204 of illustrated embodiment is blind hole, and it does not extend to housing 102 Inner surface (for example, Fig. 5 B inner surface 512).Thus, prevent material (for example, dangerous substance, dust, oil, water etc.) through via 204 enter the cavity (for example, the first cavity 202, Fig. 5 A second cavity 502) of housing unit 100.In the embodiment shown, Dividing wall 206 protrudes from the outer surface 116 of wall 118 and the first cavity 202 is separated into indicator housing 208 and switch case 210.For example, when panel 104 is coupled to the highlighted wall 114 of housing 102, panel 104 is sealingly engaged dividing wall 206.Thus, Switch case 210 is isolated with indicator housing 208, to prevent material from being worn between switch case 210 and indicator housing 208 Cross.In housing unit 100 does not include some embodiments of indicator lamp (for example, Fig. 1 indicator lamp 128,130,132,134), Housing 102 does not include the dividing wall 206 that the first cavity 202 is separated into switch case 210 and indicator housing 208.

As shown in Figure 2, the first section 212 of the outer surface 116 of wall 118 limits switch case 210 and forms entity table Face.For example, the first section 212 of wall 118 does not form hole, hole and/or otch.Thus, switch case 210 is with forming the Cavity (for example, Fig. 5 A second cavity 502) isolation in housing 102 between a part 106 and Part II 108, to prevent Only material enters cavity by switch case 210.

In the embodiment shown, second section of the projection 214 from the outer surface 116 for the wall 118 for limiting indicator housing 208 216 protrude.The electric component and/or circuit for being operably coupled to indicator lamp 128,130,132,134 (Fig. 1) will be coupled to Projection 214 in indicator housing 208.For example, by receiver board (for example, circuit board), electric component is arranged on plate for projection 214 And/or circuit.Projection 214 limits the hole 218 for accommodating fastener, and plate, electric component and/or circuit are fixed to convex by the fastener Post 214.In certain embodiments, hole 218 is screw thread, to accommodate threaded fastener.In the embodiment shown, hole 218 is blind Hole, it does not extend to the inner surface of housing 102 (for example, Fig. 5 B inner surface 512).Thus, prevent material from entering through via 218 Form the cavity in housing 102.

As shown in Figure 2, sealing pipeline 220 in indicator housing 208 from the outer surface of the second section 216 of wall 118 116 extensions.The sealing pipeline 220 of illustrated embodiment is integrally formed with highlighted wall 114.Sealing pipeline 220 is used to accommodate distribution, The electric component of indicator lamp 128,130,132,134 and/or circuit are operably coupled to its of housing unit 100 by the distribution Its electric component and/or circuit.For example, sealing pipeline 220 includes packing ring or fire safe seal, formed around the distribution accommodated Sealing, to prevent dangerous substance (for example, dust, oil, water etc.) from entering Part I 106 and Part II 108 in housing 102 Between the cavity (for example, Fig. 5 second cavity 502) that is formed.

Fig. 3 shows that housing unit 100 has the safety lock 300 for each hand switch 122,124,126.Each peace Full lock 300 is arranged adjacent to hand switch 122,124, one of 126 so that safety lock 300 covers when closed to be opened manually accordingly Close 122,124,126.Each safety lock 300 of illustrated embodiment includes lid 302, hinge 304 and slit 306.For example, safety The lid 302 of lock 300 rotates around hinge 304, with opening and/or closed safe lock 300.For example, when safety lock 300 is closed When, lid 302 is limited and/or prevented close to hand switch 122, and thus prevents hand switch 122 from activateding.Work as safety lock During 300 closing, slit 306, which will accommodate, locks (for example, padlock) to prevent the Unscrew of lid 302.In order to by each safety lock 300 Panel 104 is couple to without through panel 104, each safety lock 300 is clamped in corresponding hand switch 122,124,126 Between panel 104.Thus, safety lock 300 is installed to panel 104, without damaging between panel 104 and housing 102 The sealing of formation.

Fig. 4 A and Fig. 4 B show that the partial cross-section of the hand switch 122 for the panel 104 for being couple to housing unit 100 regards Figure.In an illustrated embodiment, hand switch 122 is button.In other embodiments, hand switch 122 can be rotating dress Put or switch.The hole 402 that the hand switch 122 of illustrated embodiment is formed by panel 104 accommodates.Hand switch 122 includes Shell body 404, it extends through hole 402 and the edge 406 of the neighbouring panel 104 for limiting hole 402 is arranged.

As illustrated in figures 4 a and 4b, hand switch 122 includes the head being arranged in the opening 410 formed by shell body 404 408.The inner surface 412 on head 408 is coupled to the first end 414 of bar 416.Bar 416 is by the magnetic material system such as such as steel Into.In the embodiment shown, the first end 414 of bar 416 is limited by the inner surface 412 on head 408 groove 418 accommodates, Second end 420 of the bar 416 relative with first end 414 extends through the hole 422 formed by the plate 424 of hand switch 122.Plate 424 are arranged in the first cavity 202 (Fig. 2) between housing 102 (Fig. 1) and panel 104.As shown in Figure 4A and 4B, magnet 426 are coupled to the second end 420 of bar 416.For example, when bar 416 is made up of magnetic material, magnet 426 is coupled by magnetic force To bar 416.In the embodiment shown, protection cap 428 is coupled to the second end 420 of bar 416 and covers magnet 426 to protect magnetic Body 426 in hostile environment and/or from bar 416 from removing.

In the embodiment shown, barrier film 430 is partially positioned in the opening formed by the shell body 404 of hand switch 122 In 410.For example, the first end 432 of barrier film 430 engages the inner surface 412 on the head 408 of the first end 414 of neighbouring bar 416.With Second end 434 of the relative barrier film 430 of first end 432 is arranged between the shell body 404 of hand switch 122 and plate 424.Example Such as, the second end 434 of barrier film 430 is arranged in, is inserted in or is held on the outer portion 436 of plate 424 and the flange of shell body 404 Between 438.

As illustrated in figures 4 a and 4b, locking ring 440 engages the outer surface 442 of shell body 404 and panel 104, will open manually Close 122 couplings, panel 104 that is fixed and/or being installed to housing unit 100.In certain embodiments, locking ring 440 is by screw thread It is couple to the shell body 404 of hand switch 122.In the embodiment shown, O-ring, seal and/or packing ring 444 are arranged in outer Between the flange 438 of housing 404 and the inner surface 446 of panel 104.Packing ring 444 is such as the elastomeric material system as such as rubber Into.The sealing that packing ring 444 is formed between hand switch 122 and panel 104, to reduce and/or prevent material (for example, danger Matter, dust, oil, water etc.) pass through the first cavity 202 (Fig. 2) that hole 402 enters housing unit 100.

Fig. 4 A show the hand switch 122 in not actuated position (for example, first position).At hand switch 122 When not actuated position, barrier film 430 is in decompression or release conditions.As shown in Figure 4 A, the outer surface 448 on head 408 with it is outer Housing 404 and locking ring 440 flush and/or formed the surface of substantially flat.Second end 420 of bar 416 is engaged for example by manual The groove 450 that the plate 424 of switch 122 is limited.

Fig. 4 B are shown in the hand switch 122 for starting position (for example, second place different from first position).For Hand switch 122 is never started to position be converted to and start position, the head 408 of hand switch 122 is towards hand switch 122 Plate 424 along straight line path it is engaged, promote and/or promote.Because the bar 416 of illustrated embodiment is coupled to head 408, Bar 416 moves along straight line path.Thus, when hand switch 122 be converted to start position, the second end 420 of bar 416 and by This magnet 426 for being couple to the second end 420 departs from and/or moved away the groove 450 of plate 424.

As shown in Figure 4 B, when hand switch 122, which is in, starts position, barrier film 430 is deformed and/or compressed.Opened when manually When pass 122 is converted to startup position, barrier film 430 provides elastic resistance power.For example, barrier film 430 includes distortion or spine 452, its The structure of barrier film 430 is maintained when barrier film 430 compresses and/or resistance is provided.In the embodiment shown, when barrier film 430 compresses When, barrier film 430 promotes and/or offset head 408, and thus hand switch 122 returns to not actuated position.

In certain embodiments, hand switch 122 is momentary contact switch, and it allows barrier film 430 when applying power removes Hand switch 122 is returned into not actuated position.In certain embodiments, hand switch 122 is to maintain contact-making switch, and it allows Hand switch 122 is maintained at after applying power removal starts position.In these embodiments, it is applied to head 408 in follow-up power After, hand switch 122 returns to not actuated position.

Fig. 5 A and 5B show the partial cross-sectional views of housing unit 100.It is empty that the wall 118 of illustrated embodiment separates first The cavity 502 of chamber 202 and second.As shown in Figure 5 A and 5B, the first cavity 202 is limited by the outer surface 116 of panel 104 and wall 118, Second cavity 502 is limited by the Part I 106 (Fig. 1) and Part II 108 of housing 102.In certain embodiments, housing 102 and wall 118 be made up of nonmagnetic substances such as stainless steels.In certain embodiments, housing 102 is by erosion-resisting material It is made, it meets the safety requirements of the environment to be installed of housing unit 100 (for example, danger position).As shown in Figure 5A and 5B, Wall 118 limits opening, hole and/or hole not between the first cavity 202 and the second cavity 502.Thus, first is come into Any material (for example, dangerous substance, dust, oil, water etc.) of cavity 202 is prevented from entering the second cavity 502.

The circuit board retainer 504 (for example, embedding cup) of illustrated embodiment is arranged in the second cavity 502 and is couple to shell The inner surface 506 of body 102.Printed circuit board (PCB) 508 is installed to circuit board retainer 504 and/or is attached to wherein, magnetic response 510 (for example, magnetic reed switch, hall effect sensors) of switch are coupled to printed circuit board (PCB) 508.In certain embodiments, magnetic The inner surface 512 (for example, second side relative with the first side) of the property adjacent wall 118 of responding to switch 510 is arranged in the second cavity 502 In so that magnet 426 and magnetic response switch 510 are aligned along the longitudinal axis 514 of the bar 416 of hand switch 122.

In the embodiment shown, panel 104 is coupled to the highlighted wall 114 of housing 102 so that panel 104 and wall 118 Outer surface 116 (for example, first side) spaced apart 516.For example, the distance between panel 104 and wall 118 516 allows in hand Hand switch 122 is spaced apart with the wall 118 of housing 102 when dynamic switch 122 is couple to panel 104.As shown in Figure 5A and 5B, when When hand switch 122 is respectively at not actuated position and starts position, the outer surface 116 of hand switch 122 and wall 118 is spaced Open.In other words, on not actuated position, startup position and/or any other position, the part of hand switch 122 is (for example, bar 416th, plate 424, magnet 426, protection cap 428 etc.) do not engage and/or penetrate the wall 118 of housing 102.

As shown in Figure 5 A, magnetic response switch 510 and magnet 426 open distance 518 in not actuated location interval.When manual When switch 122 is in not actuated position (for example, first position), distance 518 prevents the detection magnet 426 of magnetic response switch 510 Magnetic field.When hand switch 122, which never starts position, is converted to startup position, magnet 426 is suitable towards magnetic response switch 510 Longitudinal axis to move along straight line path.

When hand switch 122, which is in, starts position (for example, second place different from first position), such as institute in Fig. 5 B Show, magnetic response switch 510 and magnet 426 are spaced apart the distance 520 for being less than distance 518.When magnetic response switch 510 and magnet When 426 spaced apart 520, the magnetic field of the detection magnet 426 of magnetic response switch 510.In certain embodiments, due to being arranged in Wall 118 between magnet 426 and magnetic response switch 510 is made up of nonmagnetic substance (for example, stainless steel), so ought open manually 122 are closed in when starting position, magnetic response switch 510 detects magnet 426 by wall 118.

Magnet 426 and the permission hand switch 122 of magnetic response switch 510 do not penetrate the wall 118 of housing 102 and are couple to shell Body component 100.Opening, hole and/or hole are formed due to no on the housing 102 between the first cavity 202 and the second cavity 502 Gap, so material (for example, dangerous substance, dust, oil, water etc.), which is prevented from entering, places the second of electric component and/or circuit Cavity 502.Therefore, hand switch 122 and magnetic response switch 510 allow housing 102 by electric component and/or circuit and outside Material is isolated.Thus, even if packing ring 444 without hand switch 122, housing unit 100 can also maintain environmental protection grade (example Such as, danger position grade, explosive-proof grade, the IP66 grades of IP specifications, ingress protection grade).

In certain embodiments, magnetic response switch 510 is normal open switch, and it is in hand switch 122 starts position When provide a signal to Process Control System, and do not provide signal when hand switch 122 is in not actuated position.In some implementations In example, magnetic response switch 510 is normally closed switch, and it does not provide signal when hand switch 122 is in and starts position, and in hand Dynamic switch 122 provides signal when being in not actuated position.

In certain embodiments, magnetic response switch 510 is magnetic reed switch, and it includes the elasticity activated in response to magnetic field Reed.When magnet 426 moves relative to magnetic reed switch, the magnetic field of magnet 426 promotes elastic spring relative to another reed It is mobile.When magnet 426 is within the preset distance of magnetic reed switch, reed contacts with each other and completes circuit.For example, when manual When switch 122 changes between not actuated position and startup position, the magnetic reed switch actuating of magnetic response switch 510.Due to hand Dynamic switch 122 contacts with each other in reed when starting position, so the magnetic reed switch of magnetic response switch 510 allows in no electricity Circuit is completed in the case of being supplied to button and/or magnetic response switch 510 in source.Therefore, without electric component and/circuit arrangement Magnetic response switch 510 is coupled in the first cavity 202.

In certain embodiments, magnetic response switch 510 is hall effect sensor.For example, hall effect sensor is Transducer, it changes output voltage in response to magnetic field, and including allowing hall effect sensor to be used as the circuit of switch.Due to By the magnetic field that detects of hall effect sensor of magnetic response switch 510 with hand switch 122 magnet 426 relative to Magnetic response switch 510 is moved and changed, so the output voltage of hall effect sensor is as hand switch 122 is in start bit Put and activate and change between not actuated position.In certain embodiments, magnetic response switch 510 include electric component and/or Circuit, to allow the hall effect sensor of magnetic response switch 510 to provide a signal to Process Control System.

Fig. 6 shows another viewgraph of cross-section of housing unit 100.In the embodiment shown, hand switch 122,124 It is button.For example, hand switch 124 includes the component substantially similar or identical with the component of hand switch 122 described above. In other embodiments, hand switch 122 and/or hand switch 124 can be rotating device or switch.

As shown in Figure 6, hand switch 122,124 is couple to the panel 104 of housing unit 100.In the embodiment shown, Hand switch 122 is in not actuated position, and hand switch 124, which is in, starts position.Due to the outer surface of panel 104 and wall 118 116 are spaced apart, so on position, not actuated position and/or any other position is started, hand switch 122 and hand switch 124 do not engage/or penetrate the wall 118 of housing 102.In the embodiment shown, magnet 602 is couple to the bar of hand switch 124 604, it is arranged in for detecting the magnetic response in the magnetic field of magnet 602 switch 606 in the second cavity 502.For example, magnetic response is opened Close 606 to be arranged on printed circuit board (PCB) 508 so that the bar 604 of magnetic response switch 606 and magnet 602 along hand switch 124 Longitudinal axis 608 align.

As shown in Figure 6, the longitudinal axis 514 of hand switch 122 is spaced apart with the longitudinal axis 608 of hand switch 124 Distance 610.For example, the distance between hand switch 122 and hand switch 124 610 prevents magnetic response switch 510 in start bit Put, on not actuated position and/or any other position detect hand switch 124 magnet 602.In addition, hand switch 122 and hand Dynamic switch the distance between 124 610 prevents magnetic response switch 606 from starting position, not actuated position and/or any other position Put the magnet 426 of detection hand switch 122.Therefore, the distance between hand switch 122 and hand switch 124 610 prevents hand The operation of the dynamic interference of switch 122 magnetic response switch 606 simultaneously prevents hand switch 124 from interfering the operation of magnetic response switch 510.

In addition, the magnetic response switch 510,606 of illustrated embodiment is spaced apart with other sources (for example, motor).For example, magnetic Property responding to switch 510,606 be arranged to the magnetically and/or electrically magnetic signals for preventing magnetic response from switching 510, the 606 other sources of detection (for example, not being the signal of corresponding magnet 426,602).In other words, magnetic response switch 510 is arranged to magnetic response switch 510 can only detect the magnetic field of magnet 426, and magnetic response switch 606 is arranged to magnetic response switch 606 can only detect magnet 602 magnetic field.

The application is the flow chart with reference to the method such as the embodiment of the present application, equipment (system) and computer program product And/or block diagram describes.It should be understood that can be by each flow in computer program instructions implementation process figure and/or block diagram And/or square frame and the flow in flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided to refer to The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is made to produce One machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for realizing The device for the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.

These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.

Embodiments of the invention are these are only, are not intended to limit the invention, it is all in the spirit and principles in the present invention Within, any modification, equivalent substitution and improvements done etc., be all contained in apply pending scope of the presently claimed invention it It is interior.

Claims (10)

1. a kind of environmentally friendly housing switchgear, including：Hand switch actuator, its with the wall of the housing with environmental protection Side is spaced apart；Magnet, it is connected to the switch actuator；And magnetic response switch, it is adjacent to the second side of the wall Arrangement, wherein, the motion of the switch actuator is switched to change the position of the magnet with operating the magnetic response.

2. environmentally friendly housing switchgear as claimed in claim 1, wherein, the switch actuator and the magnet do not penetrate institute State the wall of housing.

3. environmentally friendly housing switchgear as claimed in claim 1, wherein, the housing is explosion-proof casing, dust-proof housing or entered It is at least one in mouth protective housing.

4. environmentally friendly housing switchgear as claimed in claim 1, wherein, the switch actuator is button or rotating dress Put.

5. environmentally friendly housing switchgear as claimed in claim 1, wherein, the magnetic response switch is magnetic reed switch or Hall Effect sensor.

6. environmentally friendly housing switchgear as claimed in claim 1, wherein, when the switch actuator is in first position, The magnetic response switch detects the magnet, when the switch actuator is in the second place different from the first position When, the magnetic response switch will not detect the magnet.

7. environmentally friendly housing switchgear as claimed in claim 1, wherein, the magnet is connected to the switch by magnetic force and caused Dynamic device.

8. environmentally friendly housing switchgear as claimed in claim 1, wherein, the magnetic response switch is arranged such that described Magnetic response switchs the magnetic field that can only detect the magnet.

9. a kind of equipment, including：Housing, it has environmental protection and limits cavity；Panel, it is couple to the evagination of the housing Go out portion and be spaced apart with the wall of the housing；Hand switch actuator, it is couple to the panel and is spaced apart with the wall, institute Stating switch actuator has magnet；And magnetic response switch, it is arranged in the housing relative to the switch actuator In the cavity, when the switch actuator is in first position, the magnet operates the magnetic response by the wall Switch.

10. environmentally friendly housing switchgear as claimed in claim 9, wherein, when the switch actuator be actuated to it is described During the different second place in first position, the magnet will not operate the magnetic response switch.