ES2786227T3 - Security cabinet - Google Patents

Abstract

Safety cabinet, in particular to a fire protection cabinet for the storage of hazardous substances, preferably a battery cabinet for the storage of high-performance batteries such as lithium-ion batteries, with a cabinet body (1) as well as at least one hinged door (2) connected to the cabinet body (1), furthermore with at least one closing element (8) on the hinged door (2) and / or on the cabinet body (1), and with at least one safety (3, 4), in particular a fuse (3, 4), the fuse (3, 4) keeping the closing element (8) configured as a locking element not accessible from the outside, in the position of unlocking and releasing it only in the event of fire to adopt its closed position, characterized in that two fuses (3, 4) are provided, which are arranged in series and connected to each other by means of a connection element (5), being arranged at least one of the two fuses (3, 4) inside the weapon River.

Description

DESCRIPTION

Security cabinet

The invention relates to a safety cabinet, in particular a fire protection cabinet for the storage of dangerous substances, preferably a battery cabinet for the storage of high-performance batteries such as lithium-ion batteries, with a body cabinet and at least one hinged door connected to the cabinet body, furthermore with at least one closing element on the swing door and / or cabinet body, and with at least one safety, in particular a fuse, holding the fuse the closing element configured as a locking element not accessible from the outside, in the unlocking position and releasing it only in the event of fire to adopt its closing position.

Safety cabinets and other fire protection cabinets are commonly used to store dangerous substances such as flammable liquids and chemicals. However, gas bottles or solid hazardous substances can also be stored inside. In order to protect dangerous substances from possible external sources of fire, safety or fire protection cabinets have a specified fire resistance, corresponding to different durations of fire resistance. In fact, the fire protection cabinets in question are usually classified according to DIN EN 14470. There are four levels of fire resistance of 15 min, 30 min, 60 min and finally 90 min, as described in the model DE 202014101935 U1 of the applicant.

Document WO 2012/126664 A1 deals with a cabinet, especially a gas bottle cabinet, in which the two cabinet doors can be opened / closed simultaneously via a espagnolette lock and a tongue lock by means of a bolt common rotary. In this way it is possible to perform both a locking and unlocking as well as a quick and trouble-free opening of the door.

The generic state of the art according to document US 6250 015 B1 describes a security cabinet whose hinged door closes automatically in the event of fire. In this case, the safety fuse reacts and closes the swing door in question. Furthermore, as a consequence of this process, the closing element of the swing door goes into its closed state. For this, the closing element is connected to a spring. The spring acts on the locking element in the direction of the locking position. As soon as the swing door is moved to the closed position, a mechanical lock releases the locking element, which, under spring load, moves into the closed position. To unlock the known swing door, it is only necessary to unlock the closing element with the help of a handle. In principle, the results have been good.

In the case of the generic state of the art according to EP 0 170 337 A1, a security cabinet is presented, the hinged door of which can be closed rapidly as soon as a temperature sensor detects an unacceptable temperature. An additional closing device is also provided for the door.

The state of the art practically only considers situations in which there is a risk that a source of fire produced outside the safety cabinet will affect the dangerous substances found inside. To avoid this, the security cabinet in question is usually locked.

In fact, the exterior fire source ensures that the fuse is triggered and the swing door closes automatically by the force of the spring. According to the generic state of the art according to US 6 250 015 B1, during this process the swing door is additionally blocked. After the external fire source has been extinguished, the safety cabinet can be unlocked via the external handle and the hinged door can be opened.

In recent times, safety cabinets are also increasingly used for the storage of batteries and especially high-performance batteries such as lithium-ion batteries. In other words, the safety cabinet in question is preferably a battery cabinet. According to the state of the art according to DE 101 14 960 C1, there are already examples of a battery cabinet of this type which provide a heat transfer device to regulate the temperature of the interior of the housing to a certain temperature level. It is intended that, with the aid of the heat transfer device in question, the interior of the housing is kept within a specified temperature range even in the event of large temperature fluctuations outside the housing. To this end, the heat transfer device can be electrically connected to a heat exchanger provided on the outside of the housing, which is constructively complicated.

Handling batteries, and especially high-performance ones, such as lithium-ion batteries, is not without its problems. This is mainly due to the fact that such batteries can short-circuit one or more battery cells during the charging process and even during storage. In fact, several lithium ion battery cells are normally connected to form a battery pack.

In practice it has been found that the so-called overcharge behavior of these lithium ion battery cells or of the fully connected lithium ion battery or battery module is critical. This is because a charging process that exceeds the maximum allowable voltage can cause damage to the battery cell. up to a so-called "leak" of battery cells. As a consequence, an explosion of the battery cells may occur. Depending on the voltage level, this short circuit can also cause an electric arc and consequently a fire. This is possible even with charged lithium-ion batteries in the storage state and without additional charge.

In another state of the art according to DE 35 27 287 A1, an automatic closing system for fireproof cabinets is presented. This system features an automatic closing mechanism. Furthermore, a door lock ensures that the corresponding door is closed in the event of danger.

For this reason, safety devices using a fuse have already been described in the state of the art, for example, according to DE 102013204341 A1. It is intended to provide protection against overload. To date, the problems arising from this during the storage of these batteries in safety cabinets have not been considered in practice. Consequently, convincing solutions are lacking so far. This is where invention comes into play.

The invention is based on the technical problem of continuing to develop a safety cabinet of the design described above and the associated characteristics, so that fire sources that occur especially inside the cabinet can be controlled.

To solve this technical problem, the invention proposes for a generic safety cabinet and preferably for a battery cabinet for housing and storing high-performance batteries, that two fuses are arranged in series and connected to each other by means of an element. connection and closing element.

According to an advantageous embodiment, the closing element is configured as a door latch that does not require manipulation.

Furthermore, provision is made for the hinged door to be forcibly closed in the closing position of the locking element in front of the cabinet body. As part of this forced closure, the swing door is forcibly moved to its closed position. In this forced-closing position of the hinged door in front of the cabinet body, as well as in the closed position of the locking element, the hinged door can only be opened after an emergency release.

Therefore, in the context of the invention, a special locking element is used first. In fact, this locking element is designed as a locking element. No load can be applied to the closing element from outside, that is, from outside the safety cabinet. Consequently, the closure element does not require manipulation. It is preferably a latch and, as a rule, a latch that does not require manipulation. The closing element is also provided inside the hinged door and / or the cabinet body. In most cases, the closing element is connected to the inside of the swing door.

This ensures that the locking element or the locking element in question cannot be moved to the unlocked position from the outside once it has assumed its locking position. Consequently, when the closing element is in said closed position, the (closed) swing door cannot be opened (any more). Not even a possible latch that interacts, for example, with a espagnolette lock similar to that of the theory according to document WO 2012/126664 A1, can help in this case, since the closing or interlocking element is not accessible from the exterior and cannot be actuated by the respective latch, since it has been designed so that it does not require manipulation.

According to the invention, the safety insurance or fuse ensures that the closure element in question, designed as a locking element, is kept in its unlocked position at all times. Only and exclusively in the event of fire, does the insurance or the fuse release the blocking element. As a consequence, the locking element can assume its locking position. This is generally achieved by the force of a spring. That is, the locking element is normally provided with at least one spring which, after its release by the safety or fuse, moves the locking element from the previously assumed unlocking position to the locking one. In fact, the fuse keeps the locking element in the unlocked position by overcoming the force of the tensioned spring. The adoption of the closed position of the locking element in the event of fire occurs regardless of whether the swing door is currently open or closed. In fact, the hinged door is forcibly closed in the closed position of the locking element in front of the cabinet body, provided it is open in the event of fire. Since the closing element is a locking element and in particular a door latch that does not require manipulation, the previously opened and forcibly closed hinged door can be easily locked in the event of fire. This is because the door closer is briefly pushed back against the force of its spring and then returns to its locked position. Now the hinged door is in its forced closing position in front of the cabinet body and the closing element assumes its closing position.

In this functional position, the hinged door can only be unlocked in an emergency. This emergency release may only be carried out by specially trained personnel, for example by firefighters. In fact, for emergency unlocking it is possible to proceed so that the locking element is moved, for example, by means of a special emergency unlocking lever or an unlocking knob. from the locked position to the unlocked position. Only then can the swing door (re) open. The emergency release lever or the emergency release knob in question can be arranged, for example, in an inaccessible point of the security cabinet. However, it is also possible that only the above-mentioned trained personnel have the emergency release lever or emergency release knob and place it in the cabinet body for handling the closure element.

In general, the closure element is configured as a locking pin which, in its closed position, engages a pivot housing of an adjacent hinged door and / or of the cabinet body. The first variant corresponds to the fact that the security cabinet according to the invention is provided with two hinged doors, which are respectively articulated and pivotally coupled to the body of the cabinet. With the aid of the closing element, the two hinged doors are locked against each other after being forced closed. Since the closing element is designed as a door latch or interlocking element that does not require manipulation and is not accessible from the outside, the two swing doors can no longer (no longer) be opened from the outside in their forced closed position and when the closure element is in the closed position. Rather, it is necessary to use the emergency release described above again.

As already explained, the closure element is provided with at least one spring. The locking pin can be moved, overcoming spring force, from the locked and exposed position to the unlocked and retracted position. The fuse holds the locking element or locking pin in the respective unlocked position against the force of the tensioned spring.

Within the framework of the invention, two locks and in particular two fuses are provided. These two fuses can be designed, for example, as internal fuse and external fuse. The internal fuse can be placed inside the cabinet, while the external fuse is located on an outer surface of the cabinet body. In this way, the internal fuse can be used to detect possible sources of fire inside the cabinet, while the external fuse usually reacts to sources of fire outside the safety cabinet. In both cases, the respective insurance or safety fuse trips and breaks in case of fire.

In fact, the insurance or fuse is advantageously a fuse link or wire that breaks at temperatures above 50 ° C and especially at 70 ° C and above.

Alternatively or additionally, the fuse can also be a heating element. A liquid filled glass cartridge can be used. At a certain melting temperature, for example, at a temperature above 50 ° C and especially at 70 ° C and above, there is a deflagration of the liquid and, as a consequence, the breakage of the glass cartridge (also known as "backdraft"). As a result, the fuse can no longer hold the locking element in the unlocked position, so the locking element assumes its locking position. The spring of the closing element takes care of this.

As an alternative to the realization of an internal fuse and an external fuse, or in addition to them, it is possible that a first fuse and a second fuse are distributed inside the cabinet. In this case, the invention is based on the knowledge that, in particular when batteries and preferably high-performance batteries, such as lithium-ion batteries, are stored inside the safety cabinet in question, localized sources of fire can occur. . For example, it is conceivable that a battery placed on the ground could catch fire. To ensure that this locally limited source of fire also reliably activates the insurance and, in particular, the fuse, the distributed arrangement of the first and second fuses within the cabinet, as described above, is recommended.

For example, one can proceed in such a way that one of the fuses is placed on the side of the ceiling inside the cabinet, while the other fuse is placed on the bottom or base side of the interior of the cabinet. Of course, more fuses can also be used. Furthermore, one or both fuses can naturally be combined inside the cabinet with an additional external fuse on the outer surface of the cabinet body.

In all these cases the two fuses are arranged in series and coupled to each other. With the series arrangement an OR connection is achieved in the sense that it is sufficient that only one of the two fuses blows in the event of a fire. It is understood that the two fuses can also blow. In any case, the series connection and the coupling of the fuses with each other ensures that, both in the event of a fire inside the safety cabinet and outside, the closing element that was previously held in the unlock position adopts its locked position reliably.

For the connection and coupling of the two fuses the invention makes use of a connection element. The connection element can be a connection cable. If an internal and an external fuse are incorporated, the connection element or the connection cable in question can be inserted into the cabinet body through a hole, in order to connect the external fuse, for example, to the internal fuse to through the hole.

Additionally, in most cases a tension spring is provided. The lock or fuse or the two locks or fuses are responsible for keeping the tension spring in question in a tensioned state. If a fire occurs, one or both fuses will trip. The fuse is broken, so that the tension spring changes from its tensioned state to its relaxed state. Since the locking element or locking pin is connected to the tension spring, the tensioning spring that is gradually released ensures that the locking element or locking pin changes from the previously adopted unlocking position to the unlocking position. blocking. Without However, in principle, the tension spring can also be dispensed with, since the locking element itself has the spring already explained above and is somewhat integrated.

In either case, the spring or both springs, that is to say the spring of the locking element and the tension spring, are tensioned in the unlocked position of the locking element. When the safety or fuse breaks (in the event of fire), one or both springs will release. As a consequence, the locking element assumes its unlocked position.

A particularly compact and functional design of the invention is realized in the case that the safety or fuse not only keeps the closing element in the unlocked position, but the fuse is also additionally in charge of maintaining a protection cover assigned to a hole in the cabinet body in the open position. In the case of this protection cover, it can be a closing slide that adjusts linearly and that, therefore, closes the hole in question in its closed position. In addition, or as an alternative to the protective cover or the closing slide in question, the safety or fuse can also hold the swing door in its open position.

As soon as the fuse is broken in case of fire, an additional spring assigned to the swing door and previously tensioned, or the aforementioned pull spring, takes care of the swing door moving from its open position to its closed position. This is the forced closed position of the hinged door described above with respect to the cabinet body. Since the locking element also assumes its locking position during this process, the hinged door in question cannot (any longer) be opened from the outside in this functional position. Rather, the emergency unlocking mechanism described above is required to be able to reopen the swing door.

In the event of fire, the insurance or fuse not only releases the locking element into its locked position. You can also release the protective cap for closing the hole. Alternatively or additionally, the lock or fuse can also release the swing door into its closed position. In this way, the safety cabinet according to the invention is in a position to react both to a fire source that occurs inside, and to one that is observed outside and that is detected with the help of the insurance or fuse. In all these cases, the breakage of the safety or fuse leads to the closure of any hole in the cabinet body. This hole can be an opening for the supply / extraction of air. At the same time, the swing door or both swing doors are forced closed. Furthermore, the closing element assigned to the respective swing door, which is not accessible from the outside and which is configured as a closing element, occupies its locking position. In this locking position, the one or both swing doors are locked against each other or against the cabinet body without the possibility of releasing this lock with a handle or otherwise from the outside. In fact, the hinged door in question can only be unlocked and opened in an emergency by qualified personnel. This is of particular importance since handling a fire source inside the cabinet sometimes requires special knowledge and specific precautionary measures.

It is true that the safety cabinet in question is hermetically or almost hermetically sealed when a fire source of this type occurs inside it, since the ventilation / ventilation opening is closed with the help of the protection cover or the safety slide. closing, also closing the swing door or doors forcibly. Therefore, in principle, it is to be expected that this "suffocates" the source of fire inside.

However, when storing high-performance batteries in these safety cabinets it may happen, even in hermetically or nearly hermetically closed safety cabinets, that the fire source in question continues to smolder. If an unprepared person opens the swing door, it can cause an explosion and the fire can be rekindled. Consequently, the invention provides for emergency unlocking, which can normally only be performed by qualified personnel. The personnel in question have been informed in advance of the contents of the security cabinet, so that adequate security measures and precautions can be taken at the time of emergency unlocking and opening of the swing door. In any case, the safety cabinet according to the invention is especially predestined for the reception and storage of high-performance batteries with the specific problems described above. Any possible danger to the operators is reliably excluded. All of this is achieved with a compact and cost-effective design in mind. This is where the essential benefits come in.

The invention is explained in more detail below in view of a drawing representing a single embodiment. It is shown in:

Figure 1 the security cabinet according to the invention in a schematic cross section;

Figure 2 a view of the security cabinet from the inside towards the ceiling of the cabinet body and Figures 3A and 3B the closing element in detail.

The figures represent a safety cabinet. The safety cabinet can be a fire protection cabinet for the storage of hazardous substances, for example liquid chemicals. The design of the safety cabinet in question is particularly preferred and is described below. will describe in more detail, as a battery cabinet. In fact, the battery cabinet in question is used for the housing and storage of high-performance batteries such as lithium-ion batteries.

For this purpose, the security cabinet has a cabinet body 1. In the embodiment according to FIGS. 1 and 2, two hinged doors 2 are connected to the cabinet body 1 respectively in an articulated and pivotal manner. The two swing doors 2 can be opened and closed, as indicated by the two double arrows in figure 1. Furthermore, the cabinet in question is equipped with a safety device 3, 4.

The latch 3, 4 of the exemplary embodiment is a fuse 3, 4; in fact, an internal fuse 3 and an external fuse 4 have been arranged in this sense. The internal fuse 3 is located inside the cabinet or inside the cabinet body 1, while the external fuse 4 is located in a outer surface of cabinet body 1. This is indicated by a dashed line in Figures 1 and 2.

The respective fuse 3, 4 consists of a fuse link or wire. As soon as a melting temperature or temperature of 50 ° C and especially 70 ° C and more is reached inside or outside the cabinet, this melting temperature causes the respective safety or fuse 3, 4 to break.

The two fuses 3, 4 are arranged in series and coupled to each other. A connection element 5 is provided for this purpose. The connection element 5 is a connection cable. The connecting element or cable 5 can be passed, for coupling the external fuse 4 to the internal fuse 3, through a hole 6 in the body of the cabinet 1, as shown in figure 2 and hinted at in figure 1.

Furthermore, a pull spring 7 is provided. The pull spring 7 connects the two fuses 3, 4 and two closing elements 8 to each other. This is done by the connecting element or the connecting cable 5. In fact, the two closing elements 8 are provided on the corresponding hinged door 2. Each swing door 2 has an associated closing element 8. The closing element 8 is connected to the inside face of the respective swing door 2.

According to the invention, the respective closure element 8 is designed as a locking element inaccessible from the outside. The closure element 8 of the exemplary embodiment is respectively a latch 8 that does not require manipulation, as can be seen in the detailed sections of the illustration according to FIGS. 3A and 3B. In the detailed view according to FIG. 3A, the latch in question 8 is represented in the unlocked position. Figure 3, on the other hand, shows the locked position of the closing element or latch 8. The unlocked position of the closing element or latch 8 is represented graphically in Figures 1 and 2. The step of the unlock position of the respective latch 8 to its locked position is indicated by the corresponding arrows in figure 1.

The safety or fuse 3, 4 ensures that the respective closing element or latch 8 is kept in its unlocked position as shown in figure 3A. Furthermore, the safety or fuse 3, 4 releases the closure element 8 in question only in the event of fire. This is due to the fact that in the event of fire the locking element or latch 8 assumes its locking position represented in Figure 3B. This corresponds to a movement of the latch 8 in the direction of the respective arrows in figure 1.

To achieve this in detail, the safety 3, 4 or fuse keeps the tension spring 7 in question in a tensioned state. As soon as one of the two fuses 3, 4 breaks, the tension spring 7 can be released. As a result, the respective locking element 8 moves from the unlocked position to the locked position. A spring 9 is additionally responsible for this. In fact, the closing element 8 is provided with at least one spring 9. The spring 9 (in conjunction with the tension spring 7) ensures that the locking element 8 is engaged. displace in case of removal of a tensile load by the closing element 5 and, therefore, in case of rupture of the fuse 3, 4, to the exposed and locked position (compare figure 3B).

When the respective hinged door 2 in the closed position of the closing element 8 assumes its closed position with respect to the cabinet body 1, the hinged door 2 in question can no longer be opened. This is because the locking element or latch 8 is designed in such a way that it does not require manipulation, that is, it cannot be unlocked, for example, by means of a handle from the outside. For example, the two swing doors 2 can be provided with two latches as handles, as described in the utility model DE 202012102 233 U1 of the applicant. In principle, a espagnolette lock with a handle similar to that of WO 2012/126664 A1 is also conceivable.

In any case, in this state the respective swing door 2 must be emergency unlocked. For safety reasons, this may only be done by specially qualified personnel. This is because the case of fire described and the tripping of one or both fuses 3, 4 can cause, as a consequence of an uncontrolled opening of the swing door 2, injury to the operator and / or a deflagration and / or reactivation of the flames, which is expressly prevented with the aid of the invention. The need for an emergency release necessarily requires awareness and special safety and precautionary measures.

However, if one or both swing doors 2 are open in the described fire event, the respective closing element 8 is nevertheless moved to its closed position. Subsequently or at the same time, the hinged door 2 goes into its forced closing position in front of the cabinet body 1. This can be done through one or both fuses 3, 4.

As shown in figure 2, it is possible to proceed in such a way that with the aid of one or the two fuses 3, 4 a support element 10 of the two swing doors 2 is moved from an open position in a solid line, represented in the Figure 2, to a closed position with a broken line also shown in Figure 2. However, this specific movement shown in the exemplary embodiment is not produced with the help of the two fuses 3, 4, but by resorting to another additional fuse 18 This can be done again by using another spring 19, which with the help of the additional fuse 18 is initially held in a tensioned state.

If this fuse 18 is broken, the spring 19 is released and draws the support element 10 from the open position (of the swing doors 2) indicated by a solid line to the closed position indicated by a broken line. When the support element 10 is in the closed or broken line position according to FIG. 2, the two swing doors 2 or the swing door 2 respectively open close simultaneously. The mode of operation is similar to that described in the applicant's document EP 2017420 A1.

As already explained, the hinged door 2, which is in the forced closing position in front of the cabinet body 1 as well as in the event that the closing element 8 is in its locked position, can only be opened after a emergency unlocking. This emergency release is often accompanied by additional safety measures to prevent the fire source from being reactivated inside the cabinet and to prevent operators from being injured.

In detail, the closing element 8 is designed as a closing pin 8 which, in its locking position according to the representation of FIG. 3B, fits into a corresponding pin housing 11. The pivot housing 11 in question can be configured on the adjacent hinged door 2. Alternatively or additionally, it is also conceivable that the pivot housing 11 is configured on the cabinet body 1, if the closing element 8 is fixed on an edge on the side of the hinged door cabinet 2. On the contrary, in the embodiment according to Figures 1 and 2, the design is provided so that the respective closing element 8 is positioned on an edge on the side of the corresponding swing door 2.

In view of the illustration of Figures 1 and 2 and 3A it can be seen that the safety or fuse 3, 4 not only maintains the closing element or closing pivot 8 in the unlocking position overcoming the force of the spring 9, which Consequently, it is tensioned in this unlocking position, but the fuse 3, 4 also ensures that a protective cover 12 does not cover a hole 13, 14 of the cabinet body 1 in its open position. The two openings 13, 14 are, on the one hand, an air inlet opening 13 and, on the other hand, an air outlet opening 14. Furthermore, the fuse 3, 4 can take care of that the respective swing door 2 remains in the open position, which is not shown. Rather, the additional fuse 18 takes care of this.

However, if a fire occurs, the fuse 3, 4 in question not only releases the closing element or the respective closing pivot 8 to assume its locking position, as indicated by the two arrows in figure 1. In in this case, the protective cover 12 assigned to the two openings 13, 14 is additionally and complementary subjected to a load so that it assumes the closed position. This is because the tripping of the corresponding fuse 3, 4 causes the tension spring 7 to loosen, so that it (no longer) can hold the protective cap 12. Consequently, the protective cap 12 follows the tension spring 7 and closes the two openings 13, 14. For this purpose, the protective cover 12 of the exemplary embodiment is, in a non-restrictive way, a closing slide.

Furthermore, in the event of a fire, the fuse 18 ensures that the respective open swing door 2 or the two open swing doors 2 take their closed position. This is because, when the fuse 18 is triggered, the assigned spring 19, which is only insinuated and which has been assigned to the two swing doors 2, is released. As a consequence, the spring 19 draws the support element 10 by engaging the two swing doors 2 along a guide 15, whereby the respectively open swing door 2 is forced closed.

Figure 1 also shows a temperature sensor 16. The temperature sensor 16 can be provided inside the cabinet or inside the cabinet body 1. As shown in Figure 1, the temperature sensor 16 is it connects to a control unit 17 or to a network not shown in detail. In this way, the temperatures detected by the temperature sensor 16 inside the cabinet can be transmitted to a remote control center. In this control center, a message is generated based on the temperatures detected by the temperature sensor 16 and, consequently, based on a fire inside the cabinet. This message can be interpreted and implemented simultaneously in the sense that the emergency unlocking of the aforementioned safety cabinet is then deemed necessary.

Claims (14)

1. Safety cabinet, in particular a fire protection cabinet for the storage of hazardous substances, preferably a battery cabinet for the storage of high performance batteries such as lithium ion batteries, with a cabinet body (1 ) as well as at least one swing door (2) connected to the cabinet body (1), furthermore with at least one closing element (8) on the swing door (2) and / or on the cabinet body (1), and with at least one safety (3, 4), in particular a fuse (3, 4), the fuse (3, 4) keeping the closing element (8) configured as a locking element not accessible from the outside, in the unlocking position and releasing it only in the event of fire to adopt its closed position, characterized in that two fuses (3, 4) are provided, which are arranged in series and connected to each other by means of a connection element (5) , having at least one of the two fuses (3, 4) inside the closet. 2. Security cabinet according to claim 1, characterized in that the closing element (8) is designed as a latch (8) that does not require manipulation. Security cabinet according to claim 1 or 2, characterized in that the hinged door (2) is closed in the closed position of the closing element (8) in a forced manner in front of the cabinet body (1). Safety cabinet according to claim 3, characterized in that the hinged door (1) can only be opened in the forced-closing position relative to the cabinet body (1) as well as in the closed position of the locking element (8 ) after an emergency release. Safety cabinet according to one of Claims 1 to 4, characterized in that the closing element (8) is configured as a closing pin (8) which, in its closed position, engages in a pin housing (11) of an adjacent hinged door (2) and / or in the body of the cabinet (1). Safety cabinet according to one of Claims 1 to 5, characterized in that the closing element (8) is provided with at least one spring (9). Safety cabinet according to claim 6, characterized in that the fuses (3, 4) keep the closing element (8) in the unlocked position by overcoming the force of the tensioned spring (9). Safety cabinet according to one of Claims 1 to 7, characterized in that the two fuses (3, 4) are configured as internal fuse (3) and external fuse (4) and / or as first fuse (3) and second fuse (4) and are distributed inside the cabinet. Safety cabinet according to one of Claims 1 to 8, characterized in that the two fuses (3, 4) are connected to each other by means of a connecting cable (5). Safety cabinet according to one of Claims 1 to 9, characterized in that the fuses (3, 4) hold a tension spring (7) in a tensioned state. Safety cabinet according to one of Claims 1 to 10, characterized in that the fuses (3, 4) not only keep the closing element (8) in the unlocked position, but additionally also keep a protective cover ( 12) assigned to an opening (13, 14) in the cabinet body (1) in the open position and / or the hinged door (2) in the open position. Safety cabinet according to claim 11, characterized in that the fuses (3, 4) release not only the closing element (8) in case of fire to assume its closed position, but also the protection cover (12) for closing the openings (13, 14) and / or the hinged door (2) so that they adopt their closed position. Security cabinet according to one of claims 1 to 12, characterized in that a temperature sensor (16) is provided, preferably inside the cabinet. Safety cabinet according to claim 13, characterized in that the temperature sensor (16) is connected to a control unit (17) and / or to a network.