Uncovering detection device and electronic equipment

Abstract

The utility model discloses a cover opening detection device and electronic equipment. The cover opening detection device comprises a control circuit board, an upper cover and a containing bin. The upper cover covers the accommodating bin; two metal probes are arranged on the accommodating bin; the two metal probes are respectively connected with the control circuit board; a conductive contact is arranged on the inner side of the upper cover, and the position of the conductive contact corresponds to the positions of the two metal probes; and the conductive contact is used for short-circuiting the two metal probes. When the upper cover does not cover the accommodating bin, the two metal probes are disconnected; and when the upper cover covers the accommodating bin, the two metal probes are in short circuit through the conductive contacts, so that level signal conversion can be realized through the contact relationship between the metal probes and the conductive contacts, and furthermore, a closing or opening signal of the upper cover can be accurately obtained through level signal conversion, and the detection of opening or closing of the printer can be effectively realized. And meanwhile, the metal probe and the conductive contact structure occupy a small space, so that the occupation of a printing area can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cover opening detection, in particular to a cover opening detection device and electronic equipment. Background Art

[0002] In the related art, cover opening detection is applied in various fields, for example, the paper bin cover of a printer, especially the paper bin cover of a financial terminal printer.

[0003] However, in the related art, the cover opening detection of the printer has the problems of complex structure and low detection accuracy. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cover opening detection device with a simple structure, which can improve the accuracy of detecting the opening and closing state of the upper cover and avoid misjudgment.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A cover opening detection device comprises a control circuit board, an upper cover and a storage chamber; the upper cover is covered with the storage chamber; two metal probes are arranged on the storage chamber; the two metal probes are respectively connected to the control circuit board; a conductive contact is arranged on the inner side of the upper cover, and the position of the conductive contact corresponds to the position of the two metal probes; the conductive contact is used to short-circuit the two metal probes.

[0007] Furthermore, the accommodating chamber includes an extension portion; the two metal probes are arranged on the extension portion; and the conductive contacts are correspondingly arranged at edge positions of the upper cover.

[0008] Furthermore, it also includes a probe mounting part; the probe mounting part is arranged on the extension part; and the two metal probes are arranged in the probe mounting part.

[0009] Furthermore, a receiving groove is provided at the edge of the upper cover; and the conductive contact is provided in the receiving groove.

[0010] Furthermore, it also includes a rotating shaft; the first end of the rotating shaft is rotatably connected to the accommodating bin; the second end of the rotating shaft is fixedly connected to the first end of the upper cover; the second end of the upper cover is an end opposite to the first end of the upper cover, and is used to press to open the upper cover.

[0011] Furthermore, a fixing buckle is provided on the inner side of the upper cover; a fixing groove cooperating with the fixing buckle is provided on the rotating shaft; a spring sheet is provided between the fixing buckle and the fixing groove for deforming when pressed and restoring after releasing.

[0012] Furthermore, it also includes a flexible connector; the control circuit board and the flexible connector are arranged on the accommodating compartment; a main control chip is arranged on the control circuit board; the two metal probes are connected to the main control chip on the control circuit board through the flexible connector.

[0013] Furthermore, the metal probe includes a contact; the contact is retractable along a direction perpendicular to the upper cover.

[0014] Furthermore, it also includes a shell; the accommodating chamber is arranged in the shell.

[0015] In order to solve the above technical problems, another technical solution adopted by the utility model is:

[0016] An electronic device comprises the above-mentioned cover opening detection device.

[0017] The beneficial effect of the utility model lies in that at least two metal probes are arranged on the accommodating bin, and a conductive contact for short-circuiting the two metal probes is arranged on the inner side of the upper cover, that is, when the upper cover is not closed with the accommodating bin, the two metal probes are disconnected; and when the upper cover is closed with the accommodating bin, the two metal probes are short-circuited through the conductive contact, so that the level signal conversion can be realized through the contact relationship between the metal probes and the conductive contact, and then the signal of the upper cover closing or opening can be accurately obtained through the level signal conversion, so as to effectively realize the detection of the opening or closing of the printer; at the same time, the metal probe and the conductive contact structure occupy a small space, which can effectively reduce the occupation of the printing area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a cover opening detection device in an embodiment of the utility model;

[0019] Figure 2 A top view of a containing bin in a cover opening detection device in an embodiment of the utility model;

[0020] Figure 3 A bottom view of an upper cover in a cover opening detection device in an embodiment of the utility model;

[0021] Figure 4 It is a side view of the structure of a cover opening detection device in an embodiment of the utility model after the upper cover is hidden;

[0022] Figure 5 This is a schematic structural diagram of a cover opening detection device with a housing in an embodiment of the utility model;

[0023] Description of labels:

[0024] 1. Upper cover; 11. Conductive contact; 12. Fixing buckle; 13. First end; 14. Second end; 15. Accommodating slot;

[0025] 2. Accommodating chamber; 21. Metal probe; 22. Contact; 23. Fixing groove; 24. Extension;

[0026] 3. Rotating shaft; 31. Rotating arm; 32. Connecting arm; 33. Fixed arm;

[0027] 4. Circuit board; 5. Flexible connector; 6. Housing; 7. Probe mounting. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0030] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0031] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0032] In the related art, the cover opening detection is generally implemented using a micro switch and a photosensitive sensor built into the movement. However, using a micro switch for cover opening detection requires a separate wiring and micro switch patch. For the photosensitive sensor built into the movement, it detects the opening and closing state of the upper cover by detecting changes in light transmittance. When the print head is blocked, if the upper cover is not closed, the photosensitive sensor cannot detect the open state of the upper cover. That is, the existing cover opening and closing detection system has the problems of easy misjudgment, low detection accuracy and complex structure implementation. When the cover opening and closing detection system is applied to a printer scenario, if the opening or closing state of the printer cover cannot be effectively detected, printing will not be possible. In order to solve the above technical problems, the utility model provides a cover opening detection device.

[0033] In order to solve the above problems, this application discloses the following technical solutions.

[0034] A cover opening detection device comprises a control circuit board, an upper cover and a storage chamber; the upper cover is closed with the storage chamber; two metal probes are arranged on the storage chamber; the two metal probes are respectively connected to the control circuit board; a conductive contact is arranged on the inner side of the upper cover, and the position of the conductive contact corresponds to the position of the two metal probes; the conductive contact is used to short-circuit the two metal probes.

[0035] From the above description, it can be seen that the beneficial effect of the utility model lies in: by arranging at least two metal probes on the accommodating bin, and arranging conductive contacts for short-circuiting the two metal probes on the inner side of the upper cover, that is, when the upper cover is not closed with the accommodating bin, the two metal probes are disconnected; and when the upper cover is closed with the accommodating bin, the two metal probes are short-circuited through the conductive contacts, so that the level signal conversion can be realized through the contact relationship between the metal probes and the conductive contacts, and then the signal of the upper cover closing or opening can be accurately obtained through the level signal conversion, effectively realizing the detection of the opening or closing of the printer; at the same time, the metal probes and the conductive contact structure occupy a small space, which can effectively reduce the occupation of the printing area.

[0036] In one embodiment of the present application, the metal probe of the present application can use a metal spring pin, such as a pogo pin. The solution of the present application can also balance the pressure at both ends of the printer cover by using two metal probes. Since the metal probes have a buffer when pressed down, the opening and closing of the cover is also more stable.

[0037] In one embodiment of the present application, the accommodating chamber includes an extension portion; two metal probes are arranged on the extension portion; and the conductive contacts are correspondingly arranged at edge positions of the upper cover.

[0038] It can be seen from the above description that by arranging the metal probes on the extension part, the two metal probes are easier to connect with the control circuit board, thereby not affecting the use of the containing compartment.

[0039] In one embodiment of the present application, a probe mounting piece is further included; the probe mounting piece is disposed on the extension portion; and two metal probes are disposed in the probe mounting piece.

[0040] It can be seen from the above description that by further providing a probe mounting member for fixing the two metal probes, the stability of the two metal probes is improved.

[0041] In one embodiment of the present application, a receiving groove is provided at the edge of the upper cover; and the conductive contact is provided in the receiving groove.

[0042] It can be seen from the above description that by arranging the conductive contact in the receiving groove, it is possible to avoid the conductive contact from moving, which would cause the conductive contact to be unable to connect to two metal probes at the same time.

[0043] In one embodiment of the present application, it also includes a rotating shaft; the first end of the rotating shaft is rotatably connected to the accommodating bin; the second end of the rotating shaft is fixedly connected to the first end of the upper cover; the second end of the upper cover is an end opposite to the first end of the upper cover, and is used to press to open the upper cover.

[0044] From the above description, it can be seen that a rotating shaft structure is further provided, which is rotatably connected to the accommodating bin and fixedly connected to the first end of the upper cover through the rotating shaft structure, so that the upper cover can rotate relative to the accommodating bin; at the same time, by pressing the second end of the upper cover, the first end of the upper cover can be rotated in a direction away from the accommodating bin, making the flip cover operation more convenient.

[0045] In one embodiment of the present application, a fixing buckle is further provided on the inner side of the upper cover; a fixing groove cooperating with the fixing buckle is provided on the rotating shaft; a spring sheet is provided between the fixing buckle and the fixing groove, which is used to deform when pressed and return to its original position after being released, so that the upper cover can bounce up when pressed and return to its original position after being released.

[0046] It can be seen from the above description that the upper cover can be reset by providing a fixing buckle on the inner side of the upper cover and a fixing groove on the rotating shaft.

[0047] In one embodiment of the present application, it also includes a flexible connector; the control circuit board and the flexible connector are arranged on the accommodating compartment; a main control chip is arranged on the control circuit board; and two metal probes are connected to the main control chip on the control circuit board through the flexible connector.

[0048] From the above description, it can be seen that by connecting the main control chip on the control circuit board with the two metal probes, the connection relationship between the two metal probes can be detected through the circuit board, and the opening and closing detection can be achieved; at the same time, the flexible connector makes it easier to connect the metal probes to the circuit board.

[0049] In one embodiment of the present application, the metal probe includes a contact; the contact is retractable along a direction perpendicular to the upper cover.

[0050] It can be seen from the above description that by providing a retractable contact, the metal probe can be effectively electrically contacted with the conductive contact point, thereby avoiding poor contact and the like.

[0051] In one embodiment of the present application, it also includes a shell; the containing chamber is arranged in the shell.

[0052] It can be seen from the above description that by providing a shell and arranging the containing chamber inside the shell, the containing chamber is protected by the shell to avoid damage to the internal structure.

[0053] Another embodiment of the present invention provides an electronic device, including the above-mentioned cover opening detection device, wherein the electronic device includes PDA (Personal Digital Assistant, palmtop computer), handheld electronic device, POS device, handheld payment terminal and other devices.

[0054] The device and electronic device for detecting cover opening provided by the utility model can be applied to the scene of handheld printers, and can also be used in other fields. For example, it can be applied to POS machines with printing functions. The following is an explanation through specific implementation methods:

[0055] Embodiment 1

[0056] Please refer to Figures 1 to 3 , a cover opening detection device, comprising a control circuit board 4, an upper cover 1 and a accommodating chamber 2; the upper cover 1 covers the accommodating chamber 2; two metal probes 21 are arranged at the edge position of the accommodating chamber 2; a conductive contact 11 is arranged at the inner edge position of the upper cover 1, and the position of the conductive contact 11 corresponds to the position of the two metal probes 21; the conductive contact 11 is used to short-circuit the two metal probes 21; wherein the conductive contact 11 includes a metal patch, a metal block and other structures with a conductive function; in an optional embodiment, the accommodating chamber 2 includes an extension portion 24; the two metal probes 21 are arranged on the extension portion 24; and the conductive contact 11 is correspondingly arranged at the edge position of the upper cover 1; wherein the two metal probes 21 are arranged in the probe mounting member 7, and the conductive contact 11 is arranged in the accommodating groove 15 arranged at the edge position of the upper cover 1.

[0057] In an alternative embodiment, the metal probe 21 further includes a contact 22, and the contact 22 is retractable in a direction perpendicular to the upper cover 1. For example, when the upper cover 1 is closed by rotation, the two metal probes 21 cannot be short-circuited with the conductive contact 11 at the same time; by providing a retractable contact 22, the contact 22 on the metal probe 21 that first contacts the conductive contact 11 is retracted, which can reduce the friction on the metal probe 21 and avoid the loss of the metal probe 21, thereby solving the problem of poor contact.

[0058] The upper cover 1 is rotatably connected to the storage bin 2; for example, in one embodiment, the upper cover 1 is rotatably connected to the storage bin 2 through a rotating shaft 3, specifically: the first end of the rotating shaft 3 is rotatably connected to the storage bin 2; the second end of the rotating shaft 3 is fixedly connected to the first end 13 of the upper cover 1; the second end 14 of the upper cover 1 is the end opposite to the first end 13 of the upper cover 1, and is used to press the upper cover 1 to open. Please refer to Figure 4 , wherein the rotating shaft member 3 includes a rotating arm 31, a connecting arm 32 and a fixed arm 33, and the rotating shaft member 3 is in a broken line shape as a whole; the two ends of the connecting arm 32 are respectively connected to the first end of the rotating arm 31 and the first end of the fixed arm 33, and there is a height difference between the rotating arm 31 and the fixed arm 33; the second end of the rotating arm 31 is rotatably connected to the accommodating chamber 2, and the second end of the fixed arm 33 is fixedly connected to the first end of the upper cover 1, so that a gap is formed between the second end of the upper cover 1 and the rotating arm 31; the second end of the upper cover 1 is an end opposite to the first end of the upper cover 1, and is used for pressing to open the upper cover 1; Figure 1 As shown, by pressing the second end of the upper cover 1, the upper cover 1 is rotated based on the connection position between the rotating arm 31 and the receiving bin 2, that is, the connecting arm 32 and the fixed arm 33 are also rotated at the same time, so that the first end of the upper cover 1 is separated from the receiving chamber, that is, the cover is opened, so that the material is placed in the receiving bin 2. At the same time, the second end of the fixed arm 33 is also provided with a fixing member, so that the rotating shaft member 3 and the upper cover 1 are connected to the receiving bin 2 through the fixing member to achieve the covering.

[0059] Please refer to Figure 2 as well as Figure 3 In order to effectively reset the upper cover 1 and the rotating shaft, in an optional embodiment, a fixing buckle 12 is further provided on the inner side of the upper cover 1, and a fixing groove 23 cooperating with the fixing buckle 12 is provided on the accommodating chamber 2; a spring sheet is provided between the fixing buckle 12 and the fixing groove 23 for deforming when pressed and resetting after releasing; Figure 2 as well as Figure 3 As shown, the fixing buckle 12 is disposed at the middle position of the first end 13 of the upper cover 1 .

[0060] Please refer to Figure 2A flexible connector 5 is also provided on one side of the storage compartment 2, and a control circuit board 4 and the flexible connector 5 are provided on the storage compartment; a main control chip is provided on the control circuit board 4; two metal probes 21 are connected to the main control chip on the control circuit 4 through the flexible connector 5; wherein the control circuit board 4 includes an IO interface and a ground terminal; the two metal probes 21 are respectively connected to the IO interface and the ground terminal of the control circuit board 4; by connecting one metal probe to the IO interface and the other metal probe to the ground terminal, a low level can be generated when the two metal probes are short-circuited, and the signal of the level change can be detected more effectively. At the same time, Figure 1 as well as Figure 2 As shown, the conductive contact 11 is arranged on the inner side of the first end of the upper cover 1 and at the edge of the upper cover 1, and two metal probes 21 are also arranged at the edge of the accommodating chamber 2. The flexible connector 5 is arranged along the edge of the cavity of the accommodating chamber 2 and connected to the two metal probes 21, so as not to affect the use of the cavity of the accommodating chamber 2.

[0061] Please refer to Figure 5 , and also includes a shell 6; the accommodating compartment 2 is arranged in the shell 6; at the same time, the shell 6 covers the circuit structures such as the control circuit board 4 and the flexible connector 5 arranged on the accommodating compartment 2, and can expose functional interfaces such as interfaces for data transmission and charging interfaces according to actual needs.

[0062] Embodiment 2

[0063] An electronic device includes the device for cover opening detection described in the first embodiment; for example, in a specific application scenario, the device for cover opening detection in the first embodiment is used as a handheld printer.

[0064] That is, the upper cover 1 and the containing bin 2 of the device are respectively the paper bin cover and the paper bin cavity of the printer, that is, the upper cover 1 and the containing bin 2 are both part of the handheld printer, and the two metal probes 21 serve as detection contacts (pogopins); when the paper bin cover is closed, the pogopins will contact the conductive contacts 11 located on the paper bin cover, so that the two pogopins are short-circuited to generate a level signal, and the processor (CPU) on the control circuit board 4 can accurately obtain the signal that the paper bin cover is closed; when the paper bin cover is opened, the pogopins are separated from the conductive contacts 11, so that the two pogopins are disconnected, the level signal is converted, and then the control circuit board 4 obtains the signal that the paper bin cover is opened; that is, the short-circuiting or disconnecting of the two pogopins will generate different signals. Therefore, the level change is achieved by the contact or disconnection between the two pogopins, and the printer cover opening detection can be effectively performed.

[0065] At the same time, the method of generating different signals based on the contact or separation of the two metal probes 21 with the conductive contact 11 can also be applied to the opening or closing of a specific function. For example, after the two metal probes 21 are in contact with the conductive contact 11, the music function is turned on, and after the two metal probes 21 are separated from the conductive contact 11, the music function is turned off.

[0066] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A cover opening detection device, characterized in that: It includes a control circuit board, an upper cover and a containing chamber; The upper cover is closed with the containing chamber; Two metal probes are arranged on the containing chamber; The two metal probes are respectively connected to the control circuit board; A conductive contact is disposed on the inner side of the upper cover, and the position of the conductive contact corresponds to the position of the two metal probes; The conductive contact is used to short-circuit the two metal probes.

2. A cover opening detection device according to claim 1, characterized in that: The containing chamber comprises an extension portion; The two metal probes are arranged on the extension part; The conductive contacts are correspondingly arranged at edge positions of the upper cover.

3. A cover opening detection device according to claim 2, characterized in that: Also included is a probe mounting assembly; The probe mounting member is disposed on the extension portion; The two metal probes are arranged in the probe mounting part.

4. A cover opening detection device according to claim 2, characterized in that: The edge of the upper cover is provided with a receiving groove; The conductive contact is arranged in the receiving groove.

5. The cover opening detection device according to claim 1, characterized in that: Also includes a rotating shaft member; The first end of the rotating shaft is rotatably connected to the containing bin; The second end of the rotating shaft is fixedly connected to the first end of the upper cover; The second end of the upper cover is an end opposite to the first end of the upper cover and is used for pressing to open the upper cover.

6. A cover opening detection device according to claim 5, characterized in that: A fixing buckle is also provided on the inner side of the upper cover; The rotating shaft is provided with a fixing groove matched with the fixing buckle; A spring sheet is arranged between the fixing buckle and the fixing groove, which is used for deforming when pressed and returning to its original position after being released.

7. The cover opening detection device according to claim 1, characterized in that: Also included is a flexible connector; The control circuit board and the flexible connector are arranged on the accommodating compartment; The control circuit board is provided with a main control chip; The two metal probes are connected to the main control chip on the control circuit board through the flexible connector.

8. The cover opening detection device according to claim 1, characterized in that: The metal probe includes a contact; The contact is retractable along a direction perpendicular to the upper cover.

9. The cover opening detection device according to claim 1, characterized in that: Also includes a housing; The accommodating chamber is arranged in the shell.

10. An electronic device, characterized in that: A cover opening detection device comprising any one of claims 1-9.

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