KR20070053951A - Electric oven range - Google Patents

Abstract

The present invention relates to an electric oven range, and when the safety lock is locked by a power failure or malfunction of the control unit, so that the door or the cabinet in which the oven is stored can be safely released so that the door can be opened safely. It relates to an electric microwave oven.

The present invention, the locking member is provided on the upper end of the door installed in the front of the electric oven range; An elastic support part installed to apply an elastic force to the locking member; A locking lever coupled to the locking member when the door is closed to selectively lock or release the door; It provides an electric oven range comprising a drive unit for electrically driving the locking lever: comprising a safety lock to prevent the door from being opened.

Electric Microwave Oven, Door, Safety Lock

Description

Electric oven range

1 is a perspective view briefly showing an example of a conventional electric oven range

Figure 2 is a side cross-sectional view briefly showing the main part of the electric oven range according to the present invention.

Figure 3a is a configuration diagram showing the operation when the embodiment of the safety lock device in accordance with the present invention in the locked state

3B is a configuration diagram showing the operation when the safety lock of FIG. 3A is released;

Figure 4a is a configuration diagram showing the operation when the other embodiment of the safety locking device according to the invention in the locked state

Figure 4b is a block diagram showing the operation when the safety lock of Figure 4a is released

<Description of Symbols for Major Parts of Drawings>

100: release device 101: release unit

120: cavity 130: control panel

131: battlefield room 140: door

141: mounting groove 142: locking member

144: elastic support 144a: spring

144b: silicone rubber 145: support plate

146: Outer Glass 147: Inner Glass

148: intermediate glass 150: safety lock

151: locking lever 153: driving part

The present invention relates to an electric oven range, and more particularly, to a release device of the door safety lock to prevent the door from opening when the temperature inside the cavity is high.

In general, oven ranges are roughly classified into electric ovens and gas ovens. Among them, electric ovens are heaters that generate heat by electricity (for example, ceramic heaters, sheath heaters, and halogen heaters). It is a device configured to heat various foods inside the oven by using a halogen heater.

In particular, the electric oven range has a lot of response from consumers because of the fast cooking speed, high thermal efficiency, and no flame generated from the electric oven range compared to the gas oven range.

1 schematically shows the internal configuration of the electric oven range described above.

As can be seen through FIG. 1, the conventional electric oven includes a main body 10 forming an appearance, a cavity 20 that accommodates food and the like in the main body 10 to form a predetermined space where cooking is performed, and Door 40 for selectively opening and closing the cavity 20 while forming the front of the main body 10, and the user to input and know the operation of the electric oven range in the upper front of the main body 10 It consists of a control panel 30.

Here, a blowing fan (not shown) and a heater (not shown) for supplying heat into the cavity 20 at the rear of the control panel 30, that is, the upper part of the cavity 20 in the main body 10, and There is provided an electrical equipment room in which electronic components such as a printed circuit board (PCB) (not shown) are installed.

The door 40 is insulated and shielded to seal the inside of the cavity 20 so that heat inside the cavity 20 does not leak to the outside of the oven during cooking.

On the other hand, when cooking in an electric oven range is typically heated to about 100 ~ 300 ℃ the temperature inside the cavity 20 is so dangerous when the door 40 is opened in a state that the temperature inside the cavity 20 is a high temperature, the A safety lock device 50 is provided to prevent the door 40 from opening.

Specifically, the safety locking device 50 is locked so that the door 40 does not open electrically (for example, using a solenoid, etc.) when the temperature inside the cavity 20 rises above a certain temperature, and When the temperature inside the cavity 20 falls below a predetermined temperature, the door 40 may be opened by releasing the locked state of the door 40.

The safety locking device 50 is coupled to the door 40, the hook-shaped locking lever 51 for locking / unlocking the door 40 and the electric signal from the control unit (not shown) of the electric oven range. It consists of a drive unit 53 for electrically driving the locking lever 51 as received, and the installation groove 52 formed on one side of the door 40 so that the locking lever 51 is coupled / disengaged.

Here, the safety locking device as described above is a lock-down type (lock-down type) to lock / unlock the door by moving the locking lever located on the upper side of the door in the vertical direction when the door is closed, according to the operating aspect of the locking lever, The locking lever is divided into a side swing type for locking and releasing the door by moving from side to side.

Hereinafter, a description will be given of an electric oven range equipped with a lock-down safety locking device of the locking lever is moved in the vertical direction of the above-described safety locking device to lock / release.

Conventional safety locking device 50 has a locking lever 51 provided in the front portion of the main body 10 at a position corresponding to the upper end of the door 40, the main body 10 inside or an electrical equipment room (not shown) It includes a drive unit 53 for driving the locking lever 51 is installed in the installation groove 52 formed in the upper end of the rear side of the door 40 to correspond to the locking lever 51.

One end of the locking lever 51 is connected to the driving unit 53 so as to be rotatable in the vertical direction, and the other end is mounted to extend a predetermined length to the front surface of the main body 10, and restoring elasticity by a spring (not shown). Is installed to enable this.

The locking lever 51 is rotated downward by the operation of the drive unit 52 is inserted into the installation groove 52 to be locked, or rotated upward to exit from the installation groove 52 Accordingly, the locked state of the door 40 is released.

The safety lock device 50 as described above prevents the door 40 from opening when the child or the user tries to open the door 40 despite the high temperature inside the cavity 20 during the operation of the electric oven. This makes the electric oven safe for use.

However, in the above-described conventional safety locking device 50, the installation groove 52 is formed by opening a portion of the upper end of the door 40 so that the locking lever 51 can be inserted. That is, since the installation groove 52 is formed integrally with the door 40, the locking lever 51 is directly coupled to and fixed to the door 40.

However, when a power failure occurs during the operation of the electric oven range, or a malfunction of the control unit (not shown) may occur when the locked state of the safety lock device 50 is not released.

As described above, when the lock state of the safety lock device 50 is not released, the door 40 or the locking lever 51 may be damaged in order for the user to open the door 40. In addition, when the door 40 is forcibly opened as described above, there is a problem in that even the electric oven range is installed (not shown).

In addition, in order to release the conventional safety locking device 50, there is a problem that the replacement cost increases as the door 40 and / or the cabinet are damaged.

The present invention is to solve the above problems, an object of the present invention can release the lock state so that the door or the safety lock device is not damaged when the safety lock device is locked by the power failure or malfunction of the control unit during use. To provide an electric oven.

In order to achieve the above object, the present invention, the locking member is provided on the upper end of the door installed in the front of the electric oven range; An elastic support part installed to apply an elastic force to the locking member; A locking lever coupled to the locking member when the door is closed to selectively lock or release the door; It provides an electric oven range comprising a drive unit for electrically driving the locking lever: comprising a safety lock to prevent the door from being opened.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

The same components as in the prior art are given the same names and the same reference numerals for convenience of description, and detailed description thereof will be omitted.

Referring to Figures 2 to 4b, the electric oven range according to an embodiment of the present invention will be described.

Figure 2 is a side cross-sectional view showing the main part of the electric oven range according to the present invention. 3A and 3B are diagrams illustrating the operation of one embodiment of the safety locking device in the electric oven range according to the present invention, and FIGS. 4A and 4B illustrate the operation of another embodiment of the safety locking device according to the present invention. The configuration diagram shown.

As shown in FIG. 2, the space inside the main body 110 of the electric oven range includes an electric chamber 131 in which electronic components for driving the electric oven range, such as the cavity 120 and the blower fan 132 where cooking is performed, are installed. It is roughly divided into).

A control panel 130 is installed on the front of the cavity 120, that is, on the front of the electric compartment 131, to allow the user to control and know the operation of the electric oven range.

And, in front of the cavity 120, a door 140 for selectively opening and closing the cavity 120 is hinged to the lower portion is installed to be rotatable.

On the other hand, the upper portion of the door 140 is provided with a safety lock device 150 to prevent the door 140 from opening when the temperature inside the cavity 120 rises above a predetermined temperature.

Safety locking device 150 according to this embodiment is coupled to the upper end of the door 140, the locking lever 151 for selectively locking / unlocking the door 140 and the driving unit for driving the locking lever 151 153 and a locking member 142 provided at an upper end of the door 140 to which the locking lever 151 is coupled and fixed to support the locking member 142 so as to apply an elastic force to the locking member 142. It is configured to include an elastic support 144.

Here, the safety locking device 150 is installed on both sides of the upper portion of the door 140, each of the safety locking device 150 has the same structure and operation, so the following to the safety locking device 150 installed on one side Explain.

The locking lever 151 is formed to protrude a predetermined length from the upper end of the main body to be coupled to the upper end of the door 140 when the door 140 is closed.

In addition, an end portion of the locking lever 151 protruding outward is formed to be bent downward by a predetermined length in a "a" shape to be hooked to the door 140.

The driving unit 153 electrically locks / unlocks the locking lever 151 under the control of a controller (not shown) that controls the operation of the electric oven range.

In this case, the driving unit 153 operates under a temperature inside the cavity 120. A temperature sensor (not shown) for measuring a temperature inside the cavity 120 is installed at one side of the cavity 120. In addition, the control unit sends an electrical signal to the driving unit 153 according to the internal temperature of the cavity 120 measured by the temperature sensor, and operates to lock or unlock the safety locking device 150.

Specifically, when the temperature inside the cavity 120 rises above a predetermined temperature, the control unit sends a signal to the driving unit 153 to lock the locking lever 151 so that the door 140 is opened. Block it. When the temperature inside the cavity 120 falls below a predetermined temperature, the locking lever 151 is released to operate the user to open the door 140.

On the other hand, an upper portion of the door 140 is opened to form an installation groove 141 having a predetermined depth, and the locking member 142 and the elastic support 144 are formed inside the installation groove 141. It is inserted and installed.

Here, the locking member 142 may be installed to protrude from the top of the door 140, but when the locking member 142 is installed to protrude from the top of the door 140, the door 140 is opened Since it may interfere with the main body and the control panel 130 when closed, it is preferable to install inside the door 140 as in this embodiment.

In addition, since the upper end of the door 140, which is a part where the locking member 142 is installed, is exposed to the outside when the door 140 is open, the locking member 142 may not be connected to the door 140. It would be desirable to install it concealed inside.

Hereinafter, a safety lock device according to an embodiment of the present invention will be described in detail with reference to FIGS. 3A and 3B.

The locking member 142 is formed as a separate object from the door 140 and the installation groove 141, so that the locking lever 151 does not move when the end of the locking lever 151 is received. Grooves or slots having a U " -shaped cross section are formed.

In addition, an elastic support part 144 elastically supporting the bottom surface of the locking member 142, that is, the locking member 142 and the door 140 so as to apply an elastic force upward at all times. Is installed.

On the other hand, as shown in the figure, the upper surface of the door 140 is formed to be inclined toward the inner side in contact with the cavity 120, the locking member 142 to correspond to the shape of the door 140 The side facing the inside of the cavity 120 may be formed obliquely to have a lower height than the side facing the outside.

When the locking member 142 and the door 140 are formed obliquely as described above, there is an advantage that it is easy to release the locked state of the safety locking device 150 using the release device 100 to be described later.

That is, the distance from which the elastic support portion 144 is retracted to release the locking lever 151 becomes short, so that the force for pressing the elastic support portion 144 is consumed less, and the locking lever 151 is relatively easily removed. This can be turned off.

On the other hand, according to the present invention there is provided a release device 100 for allowing the safety lock device 150 to open the door 140 from the outside in a locked state.

The release device 100 is a separate object from the door 140 and the safety lock device 150, the user pushes into the installation groove 141 of the door 140, if necessary, the safety lock device 150 ) Can be unlocked.

The release device 100 is inserted into the installation groove 141 is formed to have a bent end of the "b" shape to press the locking member 142.

Specifically, the release device 100 is formed to have a thickness enough to pass through the gap between the upper end of the door 140 and the lower end of the control panel 130, one end of the release device 100 101, that is, a portion for pressing the elastic support 144 is inserted into the installation groove 141 and is bent to press the locking member 142.

In particular, the release portion 101 of the bent end of the release device 100 can be retracted by pressing the elastic support 144 so that the locking lever 151 can escape from the locking member 142. It is bent to have a considerable length.

In addition, the release device 100 has a length that protrudes a considerable length to the outside of the door 140, so that the user is elastically pushed between the door 140 and the control panel 130 from the outside of the electric oven range. When pressing the support 144, the user can transmit a force of sufficient magnitude to the elastic support 144 using a small force using the principle of the lever.

Therefore, when the user wants to open the door 140 when the safety lock device 150 is locked, the user pushes the release device 100 into a gap between the top of the door 140 and the bottom of the control panel 130. By inserting the locking member 142 to press the elastic support 144 to retreat backwards, the locking lever 151 can be released from the locking member 142.

Meanwhile, in the above-described embodiment, the case where the safety locking device is installed on both sides of the door has been described, but the same may be applied to the case where the safety locking device is installed at the center of the door.

The elastic support 144 is to fix the locking member 142 by applying an elastic force to the locking member 142, as shown in Figs. 3a, 3b, the spring 144a or 4a, 4b As shown in FIG. 1, the silicone rubber may be elastic silicone rubber 144b.

Hereinafter, the embodiment using the spring 144a as the elastic support 144 will be described in detail.

The door 140 has an outer glass 146 forming an outer surface of the door 140 and an inner glass 147 forming an inner surface so as to shield heat inside the cavity 120 generated during a cooking process, and the outside. A plurality of glasses, such as at least one or more intermediate glasses 148, are provided between the glass 146 and the inner glass 147.

In addition, the locking member 142 and the spring 144a are installed in the installation groove 141 of the door 140, and a support plate supporting the lower portion of the spring 144a on the glass 146, 147, 148. 145 is installed.

In particular, the spring 144a is preferably installed in a compressed state to always apply an upward force to the locking member 142.

Here, when the locking lever 151 is coupled to the locking member 142 in the state in which the elastic force is applied to the locking member 142, the locking lever 151 moves in the vertical direction as well as in the horizontal direction. Since it also prevents the movement, the safety lock device 140 is blocked from opening the door 140 in the locked state.

On the other hand, the support plate 145 not only supports the spring 144a at the upper end of the glass 146, 147, 148 to be pressed, but also serves to fix the glass 146, 147, 148.

Meanwhile, as shown in FIGS. 4A and 4B, another embodiment of the present invention using the silicone rubber 144b as the elastic support 144 will be described. This embodiment is the same as the embodiment using the spring 144a. However, the elastic support 144 is different from the silicone rubber 144b.

According to the present exemplary embodiment, the locking member 142 is inserted into the installation groove 141, and a silicone rubber 144b is interposed between the bottom of the locking member 142 and the top of the glasses 146, 147, and 148.

In addition, the silicone rubber 144b is preferably installed in a compressed state to always apply an elastic force in the upward direction to the locking member 142.

Meanwhile, silicon rubber 144b may be used in upper and lower portions of the glasses 146, 147 and 148 as a means for blocking and fixing vibrations and shocks of the glasses 146, 147 and 148 in the door 140.

In the present embodiment, the silicone rubber 144b provided to fix the glasses 146, 147, and 148 as described above may be commonly used as the support means of the locking member 142.

On the other hand, look at the operation of the safety locking device 150 according to the present invention.

The locking lever 151 is normally inserted into the installation groove 141 even when the door 140 is closed, but operates so as not to be fixed until the temperature of the cavity 120 rises to a predetermined temperature.

That is, when the door 140 is closed, the locking lever 151 is centered on an axis (not shown) while the end of the locking lever 151 contacts a surface of the door 140 and then retreats to the rear side for a predetermined length. When the door 140 is completely closed, the end of the locking lever 151 is inserted into the installation groove 141 and the locking member 142.

In this state, the locking lever 151 is a state in which the locking lever 151 is simply coupled to the installation groove 141, and the safety locking device 150 does not become any obstacle when the user opens the door 140.

When the temperature inside the cavity 120 reaches a predetermined temperature by operating an electric oven range, a controller (not shown) sends an electrical signal to the driving unit 153 to electrically fix the latch lever 151. do. Therefore, in this state, even if the user tries to open the door 140, it does not open.

In addition, when the temperature of the inside of the cavity 120 falls below a predetermined temperature in the locked state as described above, when the control unit sends a signal to the drive unit 153, the drive unit 153 operates. As the locking lever 151 is rotated, the locking lever 151 comes out of the locking member 142, and the user can open the door 140.

On the other hand, when the user wants to open the door 140 while the safety locking device 150 is locked, the locking lever by inserting the release device 100 into the installation groove 141 to retract the locking member 142. 151 may be released.

Referring to the operation of the release device 100 according to an embodiment of the present invention in detail as follows.

First, as shown in FIGS. 3A and 3B, the release unit 100 is pushed into the gap between the door 140 and the control panel 130 to insert the release unit 101 into the installation groove 141. Be sure to

When the user presses the release device 100, as shown in FIG. 3B, the locking member 142 is retracted while the spring 144a is compressed, and the locking lever 151 rotates to lock the locking member. Exit at 142. Thus, the user can open the door 140.

On the other hand, as shown in Figure 4a and 4b, even in the embodiment using the silicone rubber 144b as the elastic support portion 144, the locking device 142 is inserted by inserting the release device 100 into the installation groove 141. As the pressure is applied, the locking lever 151 is released while the locking member 142 is retracted while the silicone rubber 144b is compressed.

The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications without departing from the spirit of the present invention, and such modifications are within the scope of the present invention.

According to the electric oven range according to the present invention described above has the following effects.

First, it provides a release device that can open the door without damage to the oven range and / or cabinet when the lock state of the safety lock is not released due to power outage or malfunction of the control unit during use.

In addition, in the above situation, the user can open the door directly without the need for professional technical support or technicians, thereby simplifying the time and procedure required to open the door.

Claims (7)

A locking member installed at an upper end of a door installed at the front of the electric oven range; An elastic support part installed to apply an elastic force to the locking member; A locking lever coupled to the locking member when the door is closed to selectively lock or release the door; A drive unit for electrically driving the locking lever: an electric oven range comprising a safety locking device to prevent the door from being opened. The method of claim 1, An installation groove is formed in the upper end of the door is accommodated in the locking member, the locking member and the elastic support portion is characterized in that the electric oven is inserted into the installation groove. The method of claim 2, The installation portion of the door is formed in the electric oven range, characterized in that formed obliquely toward the interior of the electric oven range. The method of claim 2, The locking member is an electric oven range characterized in that it is formed obliquely toward the inside to have a lower height toward the inner side than the side facing the outside of the electric oven range. The method of claim 1, The elastic support unit is an electric oven range, characterized in that the spring to always apply an upward force to the locking member. The method of claim 1, And the elastic support portion is a silicone rubber interposed between the locking member and the door to always apply an upward force to the locking member. The method of claim 1, The electric oven range is characterized in that the electric oven is further provided with a release device for releasing the locking lever by pressing the locking member by inserting into the installation groove of the door if necessary.

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