Door opening alarm device for electrical equipment

Abstract

The embodiment of the utility model provides a door opening alarm device for electrical equipment, and belongs to the technical field of electrical equipment, the door opening alarm device is correspondingly arranged at a door body in an equipment body by arranging a first switch, and a power supply part, the first switch and an alarm part are electrically connected in sequence to form an electric loop; the first switch is used for being closed to electrically connect the electric loop when the door body and the equipment body are unlocked, so that the alarm piece is electrified to give an alarm; the second switch is connected to the electric loop in series, the protection assembly covers the second switch, the protection assembly is provided with an information identification unit, the information identification unit is used for identifying identity information, and the protection assembly is used for being separated from the second switch when the identity information is consistent with preset information; and the second switch is used for switching from a closed state to an open state under the action of external force when the protection assembly and the second switch are separated from each other, so that the first switch is closed to disconnect the electrically communicated electric loop, and the alarm piece is powered off, so that the protection effect is good and the practicability is high.

Description

Technical Field

[0001] This application belongs to the technical field of electrical equipment, and particularly relates to an opening alarm device for electrical equipment. Background Art

[0002] Electrical equipment refers to equipment that uses electrical energy. In new energy power generation stations, various electrical equipment such as box-type transformers, cable branch boxes, and cable connection boxes in the power system are used for outdoor installation. The safe and reliable operation of each electrical equipment is of great significance to the power system.

[0003] In the related art, a door lock is configured for the door of the electrical equipment, and a power supply, an alarm, a travel switch, and a normally closed maintenance switch are set. The power supply, the travel switch, the maintenance switch, and the alarm are connected in series through wires. Among them, the push rod of the travel switch is within the range of the movable contact of the door lock. In this way, when an unauthorized person illegally operates the door lock to open the door, the push rod moves to make the travel switch closed, so that the alarm is powered on to remind the staff that the door is abnormally opened; when the operator needs to open the door for maintenance of the electrical equipment, the maintenance switch can be disconnected to avoid continuous alarm of the alarm.

[0004] However, in some application scenarios, after an unauthorized person illegally opens the door, they will immediately operate the maintenance switch to disconnect and make the alarm lose power, so that the alarm time is too short to play a warning role for the staff, and further, there will be certain safety hazards to the unauthorized person for the electrical equipment. Summary of the Utility Model

[0005] The embodiments of this application provide an opening alarm device for electrical equipment to solve the deficiencies in the related art.

[0006] The opening alarm device for electrical equipment provided by the embodiments of this application, the electrical equipment includes an equipment body, a door body, and a locking structure. One side of the door body facing the equipment body is locked or unlocked from the equipment body through the locking structure. The opening alarm device includes a power supply member, an alarm component, and a protection component; the alarm component includes a first switch, a second switch, and an alarm member. The first switch is used to be correspondingly arranged at the door body in the equipment body. The power supply member, the first switch, and the alarm member are sequentially electrically connected to form an electrical circuit; the first switch is used to close to electrically connect the electrical circuit when the door body is unlocked from the equipment body, so that the alarm member is powered on to give an alarm; the second switch is connected in series to the electrical circuit, the protection component is covered on the second switch, and an information recognition unit is arranged on the protection component. The information recognition unit is used to recognize identity information, and the protection component is used to disengage from covering the second switch when the identity information is consistent with the preset information;

[0007] The second switch is configured to switch from a closed state to an open state under an external force when the protection component disengages from the second switch, so as to disconnect the electrical circuit that is closed and electrically connected by the first switch, causing the alarm component to lose power.

[0008] In a possible implementation manner, for the door opening alarm device for an electrical device provided by the embodiment of the present application, the protection component includes a housing part, a control part, and a driving part; a lock body part is arranged on the housing part, the housing part is sheathed with the second switch through the lock body part, the information recognition unit is arranged on the housing part, the control part is electrically connected to the driving part, the control part is communicatively connected to the information recognition unit, and both the control part and the information recognition unit are electrically connected to the power supply part; the driving part is oppositely arranged with the lock body part, and the control part is used for controlling the driving part to start when the identity information is consistent with the preset information; the driving part is used for driving the lock body part to unlock when starting, so that the housing part disengages from the second switch.

[0009] In a possible implementation manner, for the door opening alarm device for an electrical device provided by the embodiment of the present application, the information recognition unit includes at least one of a face recognition module, a card reading module, and a fingerprint recognition module.

[0010] In a possible implementation manner, for the door opening alarm device for an electrical device provided by the embodiment of the present application, an unlocking hole opposite to the lock body part is formed on the housing part; the protection component further includes an unlocking part matching the unlocking hole, and the unlocking part is used for being inserted into the unlocking hole to contact the lock body part and driving the lock body part to unlock.

[0011] In a possible implementation manner, for the door opening alarm device for an electrical device provided by the embodiment of the present application, an avoidance hole is further formed on the housing part, and the second switch is connected in series to the electrical circuit through a wire via the avoidance hole; the protection component further includes a sealing part, and the sealing part is located between the wire and the housing part to seal the gap between the wire and the housing part.

[0012] In a possible implementation manner, for the door opening alarm device for an electrical device provided by the embodiment of the present application, the alarm component is one of a sound alarm and an audible and visual alarm.

[0013] In a possible implementation manner, for the door opening alarm device for an electrical device provided by the embodiment of the present application, the alarm component is used to be arranged on the top of the device body; the alarm component further includes a shielding part, and the shielding part is used for connecting to the device body, and part of the shielding part is located on the top of the alarm component.

[0014] In a possible implementation manner, for the door opening alarm device for an electrical device provided by the embodiment of the present application, the shielding part includes a support section and a shielding section arranged in sequence; one end of the support section is used for connecting to the electrical device, the other end is connected to the shielding section, and the shielding section is located on the top of the alarm component.

[0015] In a possible implementation, in the door opening alarm device for electrical equipment provided in the embodiment of the present application, the shielding section is in an arc shape with its opening facing the alarm component, and a reflective layer is provided on the side of the shielding section facing away from the alarm component.

[0016] In a possible implementation, in the door opening alarm device for electrical equipment provided in an embodiment of the present application, the first switch is a travel switch, and the second switch is a manual opening and closing switch.

[0017] The door opening alarm device for electrical equipment provided in the embodiment of the present application is provided with a power supply, a first switch and an alarm component, and the first switch is correspondingly provided at the door body in the equipment body, so that the power supply, the first switch and the alarm component are electrically connected in sequence to form an electric circuit. Therefore, when an unrelated person disengages the door body from the equipment body, the first switch is closed to electrically connect the electric circuit, so that the alarm component is powered and issues an alarm, thereby reminding the operator to go for processing, thereby realizing basic safety protection; further, by providing a second switch and a protection component, the second switch is connected in series to the electric circuit, and the protection component cover is connected to the second switch, and by providing an information recognition unit on the protection component, the information recognition unit is used to recognize the identity information, so that the protection component is disconnected from the cover when the identity information is consistent with the preset information, that is, the identity is correctly verified, thereby preventing unrelated personnel from directly operating to switch the closed state of the second switch to the open state, so that the first switch is closed to disconnect the electrically connected electric circuit, resulting in the alarm component losing power and being unable to issue a prompt to the operator, thereby realizing the second layer of protection. In this way, the door opening alarm device for electrical equipment provided in the embodiment of the present application has good protection effect and high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] Figure 1 A schematic diagram of the structure of an electrical device provided in an embodiment of the present application;

[0020] Figure 2 A circuit diagram of a door opening alarm device for electrical equipment provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of a protective component in a door opening alarm device for electrical equipment provided in an embodiment of the present application;

[0022] Figure 4 for Figure 3 A connection diagram of the control member, the drive member and the lock body;

[0023] Figure 5Schematic structural diagram of the alarm component in the door opening alarm device for electrical equipment provided by the embodiments of the present application.

[0024] Explanation of reference numerals:

[0025] 100 - Power supply component; 200 - Alarm component; 300 - Protection component;

[0026] 210 - First switch; 220 - Second switch; 230 - Alarm component; 240 - Shielding component; 310 - Housing component; 320 - Control component; 330 - Driving component; 340 - Lock body part;

[0027] 241 - Support section; 242 - Shielding section; 311 - Information recognition unit; 312 - Unlocking hole; 313 - Avoidance hole;

[0028] 3111 - Face recognition module; 3112 - Card reading module; 3113 - Fingerprint recognition module;

[0029] 400 - Electrical equipment;

[0030] 410 - Equipment body; 420 - Door body; 430 - Locking structure. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals represent the same or similar components or components with the same or similar functions from beginning to end. The described embodiments are some but not all of the embodiments of the present application. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application and should not be construed as a limitation to the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0032] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0034] In the description and claims of the present application, as well as in the above-mentioned drawings, the terms "first", "second", "third", "fourth", etc. are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0035] In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0036] In the related art, a door lock is configured for the door of an electrical device, and a power supply, an alarm, a travel switch, and a normally closed maintenance switch are provided. The power supply, the travel switch, the maintenance switch, and the alarm are connected in series through wires. Among them, the push rod of the travel switch is within the range of the movable contact of the door lock. In this way, when an unauthorized person operates the door lock to open the door illegally, the push rod moves to close the travel switch, so that the alarm is powered on to remind the staff that the door has been opened abnormally; when the operator needs to open the door for maintenance of the electrical device, the maintenance switch can be disconnected to avoid continuous alarm of the alarm.

[0037] However, in some application scenarios, after an unauthorized person opens the door illegally, they will immediately operate the maintenance switch to disconnect and de-energize the alarm, so that the alarm time is too short to play a warning role for the staff, and further, there will be a certain safety hazard to the unauthorized person for the electrical device.

[0038] In view of this, the embodiments of the present application provide an opening alarm device for an electrical device. By setting a power supply component, a first switch, and an alarm component, the first switch is placed inside the device body and correspondingly arranged at the door body, so that the power supply component, the first switch, and the alarm component are electrically connected in sequence to form an electrical circuit. Thus, when an unauthorized person disengages the door body from the device body lock, the first switch is closed to electrically connect the electrical circuit, and the alarm component is powered on to give an alarm, thereby reminding the operator to go and deal with it and realizing basic safety protection.

[0039] Further, by providing the second switch and the protection component, the second switch is connected in series to the electrical circuit, and the protection component is sleeved on the second switch. By providing an information recognition unit on the protection component and using the information recognition unit to recognize the identity information, when the identity information is consistent with the preset information, that is, when the identity is correctly verified, the protection component is disengaged from the second switch, thereby preventing unauthorized personnel from directly operating to switch the closed state of the second switch to the open state, causing the electrical circuit electrically connected by the closure of the first switch to be disconnected and the alarm component to lose power and unable to give a prompt to the operator, achieving the second layer of protection. Thus, the door opening alarm device for electrical equipment provided by the embodiments of the present application has good protection effect and high practicability.

[0040] Hereinafter, the present application will be described in detail with reference to the accompanying drawings and specific embodiments.

[0041] Refer to Figures 1 to 3 , for the door opening alarm device for electrical equipment provided by the embodiments of the present application, the electrical equipment 400 includes an equipment body 410, a door body 420, and a locking structure 430. One side of the door body 420 facing the equipment body 410 is locked or unlocked from the equipment body 410 through the locking structure 430. The door opening alarm device includes a power supply component 100, an alarm component 200, and a protection component 300; the alarm component 200 includes a first switch 210, a second switch 220, and an alarm component 230. The first switch 210 is used to be correspondingly arranged at the position of the door body 420 inside the equipment body 410. The power supply component 100, the first switch 210, and the alarm component 230 are electrically connected in sequence to form an electrical circuit; the first switch 210 is used to close to electrically connect the electrical circuit when the door body 420 is unlocked from the equipment body 410, so that the alarm component 230 is powered on to give an alarm.

[0042] The second switch 220 is connected in series to the electrical circuit. The protection component 300 is sleeved on the second switch 220. An information recognition unit 311 is provided on the protection component 300. The information recognition unit 311 is used to recognize identity information. The protection component 300 is used to disengage from the second switch 220 when the identity information is consistent with the preset information.

[0043] The second switch 220 is configured to be switched from the closed state to the open state under an external force when the protection component 300 is disengaged from the second switch 220, so as to disconnect the electrical circuit electrically connected by the closure of the first switch 210 and cause the alarm component 230 to lose power.

[0044] It should be noted that the electrical equipment 400 in the embodiments of the present application refers to equipment configured with complex electrical components that requires regular inspection or maintenance. For example, it can refer to high-voltage live equipment such as outdoor box-type transformers, cable branch boxes, and cable connection boxes used in new energy power generation stations such as wind farms and photovoltaic power stations; it can also refer to charging piles in electric vehicle charging infrastructure, etc.

[0045] Among them, the number of door bodies 420 in the electrical device 400 can be one or more than two. Accordingly, the locking structure 430 and the door body 420 are set in a one-to-one correspondence, and the door body 420 is locked or unlocked with the device body 410 through the corresponding locking structure 430.

[0046] Specifically, the locking structure 430 of the embodiment of the present application can be a mechanical lock, such as a padlock, a hasp lock, etc. The locking structure 430 can also be a controller and an electromagnetic lock electrically connected to the control component 320. In specific implementation, a current detection sensor is provided on the circuit element inside the device body 410, and the controller is communicatively connected to the current detection sensor. The controller detects whether the circuit element is energized through the current detection sensor. When energized, the electromagnetic lock is controlled to lock the door. When power is off, the electromagnetic lock is controlled to open.

[0047] It is understandable that when the door body 420 is locked with the device body 410 by a mechanical lock or an electromagnetic lock, during the normal operation of the electrical device 400 with power on, unrelated personnel can use corresponding unlocking tools to unlock the door body 420 from the device body 410. Therefore, by setting a door opening alarm device, the power supply 100 is used to provide stable power support for the entire door opening alarm device, ensuring that the alarm component 230 can respond immediately when needed.

[0048] Furthermore, the first switch 210 is used to monitor the locking status of the door body 420 and the device body 410. If the door body 420 and the device body 410 are unlocked, the alarm component 230 is immediately triggered to alarm; the second switch 220 and the protective component construct a second line of defense, and identity authentication is performed through the information identification unit 311 set on the protective component to ensure that only authorized personnel can release the alarm state, thereby increasing security, thereby maintaining the immediate warning role played by the first switch 210 and the alarm component 230, wherein the protective component 300 can also protect the second switch 220 from malicious operations and the like.

[0049] During specific implementation, when an unauthorized person uses a tool to operate the locking structure 430 to unlock the door body 420 from the equipment body 410, the first switch 210 will close, thereby electrically connecting the power supply component 100, the first switch 210, and the alarm component 230 to form an electrical circuit, and then the alarm component 230 is powered on to give an alarm. Since the information recognition unit 311 on the protection component 300 does not record the identity information of the unauthorized person, when the unauthorized person attempts to switch the closed state of the second switch 220 to the open state to cut off the power supply to the alarm component 230 and stop the alarm, because the information recognition unit 311 cannot successfully recognize the identity information of the unauthorized person, the protection component 300 still covers the second switch 220, resulting in the unauthorized person being unable to perform the disconnection operation on the second switch 220. In this way, the alarm component 230 will continuously be in the alarm state to remind the operator.

[0050] After the operator arrives at the electrical equipment 400, on the one hand, the operator can stop the unauthorized person's illegal operation. On the other hand, since the information recognition unit 311 on the protection component 300 has recorded the identity information of the operator, after successfully recognizing the identity information of the operator by using the information recognition unit 311, the protection component 300 is disengaged from covering the second switch 220, and then the second switch 220 is operated to be disconnected, avoiding the continuous alarm of the alarm component 230 after it has served as a warning.

[0051] It can be understood that when the information recognition unit 311 cannot successfully recognize the identity information of the unauthorized person, resulting in the protection component 300 still covering the second switch 220 and the unauthorized person being unable to perform the disconnection operation on the second switch 220, if the unauthorized person uses a tool to operate the protection component 300 to disengage from covering the second switch 220, since the provided protection component 300 can act as an obstacle to delay the operation time of the unauthorized person to disconnect the second switch 220, that is, it prolongs the alarm duration of the alarm component 230, thus better ensuring that the operator receives the reminder and goes to handle it.

[0052] In this way, the door opening alarm device for electrical equipment provided by the embodiment of the present application has good protection effect and high practicability.

[0053] Refer to Figure 3 and Figure 4, in some embodiments, the protection component 300 includes a housing member 310, a control member 320, and a driving member 330; a lock body portion 340 is provided on the housing member 310, and the housing member 310 is covered with the second switch 220 through the lock body portion 340. An information recognition unit 311 is provided on the housing member 310. The control member 320 is electrically connected to the driving member 330, the control member 320 is communicatively connected to the information recognition unit 311, and both the control member 320 and the information recognition unit 311 are electrically connected to the power supply member 100; the driving member 330 is disposed opposite to the lock body portion 340. The control member 320 is configured to control the driving member 330 to start when the identity information is consistent with the preset information; the driving member 330 is configured to drive the lock body portion 340 to unlock when starting, so that the housing member 310 is disengaged from the covering connection with the second switch 220.

[0054] Specifically, the structural design in which the housing member 310 is covered with the second switch 220 through the lock body portion 340 is used to provide relatively strong physical protection for the second switch 220; the cooperative design of the driving member 330 and the lock body portion 340 realizes the smooth disengagement of the housing member 310 from the second switch 220 by controlling the unlocking action of the lock body portion 340.

[0055] Furthermore, the communicative connection between the information recognition unit 311 and the control member 320 enables the door opening alarm device to perform intelligent identity verification operations. That is, when the recognized information matches the preset information, the control member 320 issues an instruction to control the driving member 330 to start, so that the driving member 330 drives the lock body portion 340 to unlock. With such a design, on the basis that only verified staff can conveniently and quickly remove the protection of the protection component 300 for the second switch 220, the safety is improved.

[0056] It should be noted that when the housing portion is covered with the second switch 220 through the lock body portion 340, different settings can be made according to the position of the second switch 220 or the actual situation. Exemplarily, the second switch 220 is provided on the side of the door body 420 facing away from the device body 410. In this way, the housing portion can have a receiving cavity with an opening on one side, the lock body portion 340 is connected to the inner wall of the housing portion, and the housing portion is covered on the second switch 220 through the opening and is connected or disconnected from the door body 420 through the lock body portion 340, so as to achieve the covering connection or disengagement from the second switch 220; or, the housing portion is a receiving cavity with an opening on one side, the second switch 220 is placed in the receiving cavity, and the housing portion is provided with a housing door. The housing is hinged or disengaged from the housing portion through the lock body portion 340 to open or close the opening, so as to achieve the covering connection or disengagement of the housing portion from the second switch 220. Among them, the control member 320 and the driving member 330 are placed in the receiving cavity.

[0057] Further, the driving member 330 can be set as a motor, the control member 320 is an electronic controller, and the lock body portion 340 can include a lock tongue. The lock tongue is a component for directly cooperating with a lock catch on the door body 420 or a lock catch on the door frame of the housing portion to achieve locking and unlocking of the housing portion or the housing door. In specific implementation, the output shaft of the motor can be connected to the lock tongue, and the lock tongue is pulled or pushed by driving the motor, so as to simplify the structure of the protection component 300. In addition, the motor can also indirectly act on the lock tongue through a transmission structure to achieve relatively precise control. For example, the motor is connected to a transmission rod driving the lock tongue through a reduction gearbox. When the motor receives a signal from the electronic controller and starts, through the reduction and torque increase of the gears, the transmission rod pushes or pulls the lock tongue.

[0058] Continue to refer to Figure 3 , in a specific example, the information recognition unit 311 includes at least one of a face recognition module 3111, a card reading module 3112, and a fingerprint recognition module 3113.

[0059] It can be understood that by setting different types of recognition modules, it can be applicable to different usage environments and meet different user requirements. Among them, the face recognition module 3111 and the card reading module 3112 can achieve fast contactless verification, which is beneficial to improving convenience; the fingerprint recognition module 3113 has high security.

[0060] In specific implementation, the information recognition unit 311 can be set with at least one of the face recognition module 3111, the card reading module 3112, and the fingerprint recognition module 3113. In this way, identity information authentication can be achieved. It can also be used in combination with two or more of the face recognition module 3111, the card reading module 3112, and the fingerprint recognition module 3113. In this way, on the one hand, the operator can select a suitable verification method according to the actual situation, improving the convenience and comfort of use. For example, for operators who often forget to carry cards, face recognition or fingerprint recognition can provide more convenient options. On the other hand, in the case where a certain recognition module is temporarily unavailable due to a malfunction, identity verification can still be performed through other modules, ensuring the continuity and reliability of the function.

[0061] Further, considering that in the actual use process, there may be a situation where all recognition modules fail and the identity information cannot be verified. In some examples, an unlocking hole 312 opposite to the lock body portion 340 is opened on the housing member 310; the protection component 300 further includes an unlocking member matching the unlocking hole 312. The unlocking member is used to be inserted into the unlocking hole 312 to contact the lock body portion 340 and drive the lock body portion 340 to unlock.

[0062] Thus, a mechanical driving method is introduced to unlock the lock body part 340 through the cooperation of the unlocking part inserted into the unlocking hole 312 and the lock body part 340, further optimizing the reliability of the protection component 300 for protecting the second switch 220.

[0063] In a specific example, an avoidance hole 313 is further formed in the housing part 310, and the second switch 220 is connected in series to the electrical circuit through a wire via the avoidance hole 313; the protection component 300 further includes a sealing member located between the wire and the housing part 310 to seal the gap between the wire and the housing part 310.

[0064] Specifically, the design of the avoidance hole 313 ensures the smooth passage of the wire, facilitating correct wiring during installation and subsequent maintenance or replacement of the wire; by providing the sealing member, external pollutants such as moisture and dust can be prevented from entering the housing part 310 through the gap between the wire and the housing part 310, enabling the protection component 300 to have good airtightness and watertightness, which is beneficial to improving the stability and service life of the second switch 220.

[0065] In some embodiments, the alarm component 230 is one of a sound alarm and an audible and visual alarm.

[0066] Specifically, the sound alarm can achieve auditory warning and quickly notify nearby operators through a high-decibel alarm sound. The audible and visual alarm combines both sound and light warnings and can be applied to occasions where enhanced visual cues are required, such as factories, new energy power stations, etc., or environments with high noise levels. The light warning can make up for the deficiency of the sound being masked to ensure the transmission of the alarm.

[0067] In specific implementation, the sound alarm or the audible and visual alarm can be selected according to actual needs as long as the applicability and effectiveness of the alarm are ensured. The embodiments of the present application do not limit this.

[0068] Refer to Figure 5 , in a specific example, the alarm component 230 is used to be arranged on the top of the equipment body 410; the alarm component 200 further includes a shielding member 240 used to connect to the equipment body 410, and a part of the shielding member 240 is located on the top of the alarm component 230.

[0069] It can be understood that by arranging the alarm component 230 on the top of the equipment body 410, the alarm component 230 is placed at a high position, which is beneficial for the sound or light of the alarm to spread around unobstructed and attract the attention of surrounding operators.

[0070] Furthermore, by connecting the shielding member 240 to the equipment body 410, there is no need for an additional support structure, and the support of the equipment body 410 enables the alarm component 230 to have good stability as a whole.

[0071] By arranging the partial shielding member 240 on top of the alarm member 230, certain physical protection can be provided for the alarm member 230, preventing rainwater and the like from directly contacting the alarm member 230 and affecting its service life, which is conducive to maintaining the stable operation of the alarm member 230.

[0072] Furthermore, the shielding member 240 includes a support section 241 and a shielding section 242 arranged in sequence; one end of the support section 241 is used to connect to the electrical device 400, and the other end is connected to the shielding section 242, and the shielding section 242 is located on top of the alarm member 230.

[0073] In specific implementation, the support section 241 can be set as a plate-like structure, which is simple and convenient for production and manufacturing. The support section 241 and the shielding section 242 can be fixed by welding or can be integrally formed, as long as the connection between the two is ensured to be reliable, and the embodiments of the present application do not limit this.

[0074] In some embodiments, the shielding section 242 is in an arc shape with an opening facing the alarm member 230, and a reflective layer is provided on the side of the shielding section 242 facing away from the alarm member 230.

[0075] It can be understood that by setting the shielding section 242 as an arc shape with an opening facing the alarm member 230, when rainwater drops onto the shielding section 242, the rainwater will smoothly fall along the arc track of the shielding section 242 under the action of gravity, thereby avoiding the accumulation of rainwater on the shielding section 242 and being unable to drain.

[0076] By providing a reflective layer on the side of the shielding section 242 facing away from the alarm member 230, the shielding section 242 can reflect light when irradiated by light, especially in a night or low-light environment, which can enhance the visibility of the alarm member 230.

[0077] In a specific example, the first switch 210 is a travel switch, and the second switch 220 is a manual disconnect switch.

[0078] Specifically, as a mechanical sensor, the travel switch can automatically switch the electrical circuit according to the opening and closing state of the door body 420. When the door body 420 is separated from the device body 410 due to unauthorized operation or abnormal conditions, the travel switch immediately senses and closes the circuit, triggering an alarm, achieving a delay-free automatic monitoring and alarm response.

[0079] The manual disconnect switch provides an operating point for the operator who has passed the identity verification. In specific implementation, the operability of the manual disconnect switch can also facilitate the maintenance and troubleshooting of the switch alarm device. When the switch alarm device has an abnormal alarm or needs to be maintained, the operator operates the manual disconnect switch to isolate the electrical circuit, which is convenient for diagnosing and fixing problems without affecting other parts of the switch alarm device.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present application.

Claims

1. A door opening alarm device for electrical equipment, the electrical equipment comprising an equipment body, a door body and a locking structure, the door body is locked or unlocked with the equipment body through the locking structure on one side of the door body facing the equipment body, characterized in that: The door opening alarm device includes a power supply component, an alarm component and a protection component; The alarm assembly includes a first switch, a second switch and an alarm element, wherein the first switch is used to be arranged correspondingly at the door body in the device body, and the power supply element, the first switch and the alarm element are electrically connected in sequence to form an electrical circuit; the first switch is used to close to electrically connect the electrical circuit when the door body is unlocked from the device body, so that the alarm element is powered and emits an alarm; The second switch is connected in series to the electrical circuit, the protection component is covered and connected to the second switch, an information identification unit is provided on the protection component, the information identification unit is used to identify identity information, and the protection component is used to disconnect from the second switch when the identity information is consistent with preset information; The second switch is configured to switch from a closed state to an open state under the action of an external force when the protective component is disconnected from the cover of the second switch, so as to disconnect the electrical circuit that is electrically connected by closing the first switch and make the alarm component lose power.

2. The door opening alarm device for electrical equipment according to claim 1, characterized in that: The protection assembly includes a housing member, a control member and a drive member; The housing is provided with a lock body, the housing is connected to the second switch cover through the lock body, the information identification unit is provided on the housing, the control member is electrically connected to the driving member, the control member is in communication connection with the information identification unit, and the control member and the information identification unit are both electrically connected to the power supply member; The driving member is arranged opposite to the lock body, and the control member is used to control the driving member to start when the identity information is consistent with the preset information; The driving member is used to drive the lock body to unlock when starting, so that the housing member is separated from the second switch.

3. The door opening alarm device for electrical equipment according to claim 2, characterized in that: The information recognition unit includes at least one of a face recognition module, a card reading module and a fingerprint recognition module.

4. The door opening alarm device for electrical equipment according to claim 2, characterized in that: The housing is provided with an unlocking hole opposite to the lock body; The protection component also includes an unlocking piece matching the unlocking hole, and the unlocking piece is used to be inserted into the unlocking hole to contact the lock body and drive the lock body to unlock.

5. The door opening alarm device for electrical equipment according to claim 2, characterized in that: The housing is also provided with an escape hole, and the second switch is connected in series to the electrical circuit via a wire through the escape hole; The protection assembly further includes a sealing member, which is located between the wire and the housing member to seal a gap between the wire and the housing member.

6. The door opening alarm device for electrical equipment according to any one of claims 1 to 5, characterized in that: The alarm component is one of a sound alarm and a sound and light alarm.

7. The door opening alarm device for electrical equipment according to claim 6, characterized in that: The alarm component is used to be arranged on the top of the device body; The alarm component also includes a shielding member, which is used to be connected to the device body, and part of the shielding member is located on the top of the alarm member.

8. The door opening alarm device for electrical equipment according to claim 7, characterized in that: The shielding member comprises a supporting section and a shielding section which are arranged in sequence; One end of the supporting section is used to be connected to the electrical equipment, and the other end is connected to the shielding section, and the shielding section is located on the top of the alarm component.

9. The door opening alarm device for electrical equipment according to claim 8, characterized in that: The shielding section is in an arc shape with its opening facing the alarm component, and a reflective layer is provided on a side of the shielding section away from the alarm component.

10. The door opening alarm device for electrical equipment according to any one of claims 1 to 5, characterized in that: The first switch is a travel switch, and the second switch is a manual opening and closing switch.

Images