Handheld read-write device

Abstract

The invention provides handheld read-write equipment, which comprises an equipment main body and a test head body, and is characterized in that at least part of the equipment main body forms a holding part, and the equipment main body comprises a display panel and a first conductive part; the testing head body is detachably connected to the equipment main body, the testing head body is provided with a second conductive part and a testing needle, the second conductive part is electrically connected with the testing needle, and the second conductive part is electrically connected with the first conductive part when the testing head body is connected with the equipment main body. The invention provides handheld read-write equipment which is used for at least solving the technical problems that existing read-write equipment is large in size and inconvenient to use.

Description

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 27, 2023, with application number 202310937669.2 and application name “Chip Reading and Writing Device”, the entire contents of which are incorporated by reference in this application. Technical Field

[0002] The present invention relates to the technical field of chip reading and writing, and in particular to a handheld reading and writing device. Background Art

[0003] Printers are commonly used office equipment. Printers have consumables such as ink cartridges and developer cartridges. The consumables are equipped with chips to store relevant information about the consumables, such as consumable model, production date, manufacturer, serial number, chip program version and other attribute information. As the consumable model is updated, the current program content in the chip needs to be overwritten and updated, which requires the use of a read-write device to burn the chip program.

[0004] The current reading and writing devices are relatively large in size, usually including a host and a test head body. The host and the test head body are separately set and connected by wires. During use, the user needs to hold the test head body with one hand to align and press the chip, and press the host start button with the other hand. The user must not only keep the test head body in contact with the chip, but also observe the operation progress of the host interface, which is inconvenient to use.

[0005] Therefore, there is an urgent need to improve the structure of the reading and writing device to solve the technical problem that the existing reading and writing device is inconvenient to use. Summary of the invention

[0006] The invention provides a handheld reading and writing device, which is used to at least solve the technical problem that the existing reading and writing devices are inconvenient to use.

[0007] In order to achieve the above object, the present invention provides a handheld reading and writing device, comprising:

[0008] A device body, at least a portion of which forms a grip portion, and the device body includes a display panel and a first conductive portion;

[0009] A test head body, wherein the test head body is detachably connected to the device body, the test head body is provided with a second conductive part and a test needle, the second conductive part and the test needle are electrically connected, and when the test head body and the device body are connected to each other, the second conductive part is electrically connected to the first conductive part.

[0010] The present invention provides a handheld reading and writing device, which is small in size and easy to carry. The user can control the use posture of the device body by holding the holding part with one hand, so that the test needle is aligned with the chip. At the same time, the hand holding the device body can also operate the device body at the same time. The display panel displays relevant information. The user can observe the contact situation between the test needle and the chip while also observing the relevant information displayed on the display panel. The use is more convenient and the operation is quick.

[0011] In a possible implementation, a mounting cavity is defined in one of the device body and the test head body, and the other of the device body and the test head body has a connection portion that is plugged in and out of the mounting cavity.

[0012] In one possible implementation, a first snap-fitting portion is provided on a side wall of the mounting cavity, and a second snap-fitting portion is provided on an outer wall of the test head body, and the first snap-fitting portion and the second snap-fitting portion are snap-fitted to each other; one of the first snap-fitting portion and the second snap-fitting portion is an elastic snap buckle, and the other of the first snap-fitting portion and the second snap-fitting portion is a slot.

[0013] In a possible implementation, a first magnetic component is disposed in the installation cavity, and a second magnetic component is disposed on the connecting portion. The second magnetic component corresponds to the position of the first magnetic component, and the second magnetic component is magnetically attracted to the first magnetic component.

[0014] In a possible implementation, an elastic member is disposed in the installation cavity, and two ends of the elastic member are respectively abutted between the connecting portion and the inner wall of the installation cavity; and / or,

[0015] An inner wall of the installation cavity and / or an outer wall of the connecting portion is provided with an assembly groove, and a gap is provided between the assembly groove and the connecting portion; and / or,

[0016] The inner wall of the mounting cavity is provided with a first guide portion, the outer wall of the connecting portion is provided with a second guide portion, the second guide portion corresponds to the position of the first guide portion, one of the first guide portion and the second guide portion is a guide groove, the other of the first guide portion and the second guide portion is a guide protrusion, and the guide protrusion is slidably matched with the guide groove.

[0017] In a possible implementation, the device further includes a first protective sleeve, wherein a first protective cavity is defined in the first protective sleeve;

[0018] In a state where the test head body and the device body are connected to each other, the test head body is located in the first protection cavity, and the first protection cavity is connected to the device body;

[0019] The device body is provided with a mounting buckle, and the mounting buckle is used to be engaged and connected with the inner wall of the first protective sleeve.

[0020] In a possible implementation, a second protective cover is further included, and a receiving cavity is formed between the second protective cover and the first protective cover; when the test head body and the device body are separated from each other, the test head body is disposed in the receiving cavity.

[0021] In one possible implementation, the side wall of the second protective cover is provided with a fitting groove and a fitting buckle, and when the test head body and the device body are separated from each other, the second fitting portion provided on the outer wall of the test head body extends to the outside of the first protective cover through the fitting groove, and the second fitting portion is engaged with the fitting groove, and the fitting buckle is engaged with the inner wall of the first protective cover; the fitting groove and the first fitting portion of the device body have the same structure, and the fitting buckle and the mounting buckle provided on the device body have the same structure.

[0022] In a possible implementation, the device further includes a clamp, the clamp including a back plate and a first clamping portion and a second clamping portion respectively connected to two ends of the back plate, a clamping cavity is formed between the first clamping portion and the second clamping portion, the device body is located in the clamping cavity, and the first clamping portion and the second clamping portion are respectively clamped on two opposite sides of the device body;

[0023] The device body is provided with a first positioning portion, and the back plate is provided with a second positioning portion. One of the first positioning portion and the second positioning portion is a positioning groove, and the other is a positioning column, and the positioning column extends into the positioning groove.

[0024] In a possible implementation, the test head body includes a program burner, and when the test head body and the device body are connected to each other, the device body obtains the burning program carried by the program burner.

[0025] In a possible implementation, the device body further includes a test button, the grip portion includes a plurality of finger contact positions, and the test button is located at one of the finger contact positions;

[0026] When the display panel faces the user, one of the plurality of finger contact positions faces the user, and the remaining finger contact positions are on the side of the device body.

[0027] The present invention provides a handheld reading and writing device. By holding the device body, the test head body can be used to keep chip contact, perform operations and observe the display panel. The device is easy to use and carry.

[0028] The present invention provides a handheld reading and writing device, in which a device body and a test head body do not need to be connected using a connecting wire, thereby reducing interference of wire length on signals and improving communication effects.

[0029] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a handheld reading and writing device provided by an embodiment of the present invention, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 An exploded diagram of a handheld reading and writing device provided by an embodiment of the present invention;

[0032] Figure 2 Another exploded diagram of the handheld reading and writing device provided by the embodiment of the present invention;

[0033] Figure 3 An exploded diagram of another handheld reading and writing device provided by an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the three-dimensional structure of a handheld reading and writing device provided in an embodiment of the present invention;

[0035] Figure 5 An exploded view of a first protective cover, a second protective cover and a test head body of a handheld reading and writing device provided in an embodiment of the present invention;

[0036] Figure 6 An exploded diagram of a device body and a card holder of a handheld reading and writing device provided in an embodiment of the present invention;

[0037] Figure 7 Another exploded view of the device body and the card holder of the handheld reading and writing device provided in the embodiment of the present invention;

[0038] Figure 8 A structural schematic diagram of a device body from another perspective of a handheld reading and writing device provided by an embodiment of the present invention;

[0039] Fig. 9A schematic diagram of the structure of a handheld reading and writing device in a handheld state provided by an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 10- Equipment body;

[0042] 11- Display panel;

[0043] 12- a first conductive portion;

[0044] 13-installation cavity;

[0045] 131-assembly slot;

[0046] 14- first engaging portion;

[0047] 15- a first guide portion;

[0048] 16-first positioning portion;

[0049] 17- Lanyard slot;

[0050] 18-operation button;

[0051] 19-installation buckle;

[0052] 110-indicator light;

[0053] 111-Charging port;

[0054] 112- speaker hole;

[0055] 113-heat dissipation holes;

[0056] 20-test head body;

[0057] 21- a second conductive portion;

[0058] 22-test pin;

[0059] 23- second engaging portion;

[0060] 24-connecting part;

[0061] 25- second guide portion;

[0062] 30- elastic member;

[0063] 40- first protective cover;

[0064] 41-external convex groove;

[0065] 50- second protective cover;

[0066] 51-accommodating chamber;

[0067] 52-fitting groove;

[0068] 53- third guide portion;

[0069] 54-sleeve buckle;

[0070] 60-Card holder;

[0071] 61- back plate;

[0072] 611-screw hole;

[0073] 62-first clamping portion;

[0074] 63- second clamping portion;

[0075] 64-clamping cavity;

[0076] 65- second positioning portion;

[0077] 70-test button;

[0078] 71- first burning button;

[0079] 72- Second burn button. DETAILED DESCRIPTION

[0080] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0081] Chip reading and writing include two operations: reading chip program and burning chip program. To burn the chip program, the current program content in the chip can be overwritten.

[0082] Current reading and writing devices include a device body and a test head body. Usually, the device body and the test head body are separated and connected by a data cable. When the user reworks the chip, he needs to hold the test head body with one hand to align and press the chip, and use the other hand to press the start button of the device body. He needs to consider both keeping the test head body in contact with the chip and observing the operation progress of the host interface of the device body. It is not very convenient to use and the experience is not good.

[0083] In addition, the device body and the test head body are connected with a data cable for communication. The cable length will interfere with the signal. The communication speed is also greatly affected by the cable length, and it is impossible to achieve the optimal speed.

[0084] In view of this, the present invention provides a handheld reading and writing device, which is small in size and easy to carry. The user holds the holding part of the device body with one hand and controls the use posture of the test needle through the holding part to make the test needle aim at the chip. At the same time, the hand holding the device body can also operate the device body at the same time. The display panel displays relevant information. The user can observe the contact status of the test needle and the chip and the relevant information displayed on the display panel at the same time, which is more convenient to use and easy to operate.

[0085] The handheld reading and writing device provided by the embodiment of the present invention is described below with reference to the accompanying drawings.

[0086] refer to Figure 1 and Figure 2 As shown, the present invention provides a handheld reading and writing device, including: a device body 10 and a test head body 20, at least part of the device body 10 forms a holding portion, the device body 10 includes a display panel 11 and a first conductive portion 12; the test head body 20 is detachably connected to the device body 10, the test head body 20 is provided with a second conductive portion 21 and a test needle 22, the second conductive portion 21 and the test needle 22 are electrically connected, and when the test head body 20 and the device body 10 are connected to each other, the second conductive portion 21 is electrically connected to the first conductive portion 12.

[0087] The present invention provides a handheld reading and writing device, which is compact and easy to carry. The user can hold the holding portion with one hand so that the test needle 22 is aligned with the chip. The hand holding the device body 10 can also operate the device body 10 at the same time. The display panel 11 displays relevant information. The user can observe the contact between the test needle 22 and the chip while also observing the relevant information displayed on the display panel 11. The use is more convenient and the operation is quick.

[0088] At least part of the device body 10 forms a grip portion, which is used to control the use posture of the test pin 22. By holding the grip portion, it is convenient to control the position of the test pin 22, the conduction and read / write state of the test pin 22, etc. The structure of the grip portion is not specifically limited here. For example, the device body 10 can be in a bar-shaped block shape as a whole, so that the user can grasp and pick up the device body 10. Of course, the grip portion can also be formed in the middle or top of the device body 10, so that the user can grasp the grip portion and pick up the device body 10.

[0089] refer to Figure 1 and Figure 2As shown, the test head body 20 is provided with an electrically connected second conductive part 21 and a test pin 22. When the test head body 20 and the device body 10 are connected to each other, the second conductive part 21 abuts against the first conductive part 12, thereby achieving conduction between the first conductive part 12 and the test pin 22, and realizing communication connection. Of course, the second conductive part 21 and the first conductive part 12 can also be conducted through an adapter. There is no need to use a connecting wire to connect the test head body 20 and the device body 10, reducing the interference of the wire length on the signal.

[0090] In a possible implementation, the test needle 22 may be located at the end of the test head body 20 to facilitate the test needle 22 to contact with the contact point of the chip to be programmed.

[0091] In one possible implementation, there are multiple test needles 22, and the shapes of the test needles 22 include but are not limited to cylindrical, polygonal columnar, etc. They can be selected according to the contacts of the chip to be burned, so as to be suitable for different chips to be burned, thereby improving the versatility of the handheld reading and writing device. The arrangement shape of the multiple test needles 22 is not specifically limited here.

[0092] In a possible implementation, a mounting cavity 13 is provided in one of the device body 10 and the test head body 20, and the other of the device body 10 and the test head body 20 has a connection portion 24 pluggably connected to the mounting cavity 13. By plugging and unplugging the connection portion 24 into the mounting cavity 13, the stability of the connection between the device body 10 and the test head body 20 can be improved.

[0093] Embodiment 1

[0094] refer to Figure 1 and Figure 2 As shown, in the first embodiment, a mounting cavity 13 is provided in the device body 10, and the test head body 20 has a connection portion 24 pluggably connected to the mounting cavity 13. By directly plugging and unplugging the connection portion 24 in the mounting cavity 13, the device body 10 and the test head body 20 are connected as a whole, achieving a stable connection effect between the device body 10 and the test head body 20, and eliminating the need to use wires for signal transmission between the device body 10 and the test head body 20, which can effectively solve the signal interference problem caused by the line length.

[0095] Reference for the insertion and removal direction of the test head body 20 Figure 1 The arrow X indicates the direction.

[0096] In a possible implementation, the device body 10 may be a female plug and the test head body 20 may be a male plug. Of course, the device body 10 may also be a male plug and the test head body 20 may be a female plug.

[0097] In a possible implementation, the display panel 11 may be a touch screen, and interactive operations on the reading and writing device are implemented by touching the touch screen.

[0098] In a possible implementation, the device body 10 is further provided with an operating button 18 , and the operating button 18 and the display panel 11 are located on the same surface of the device body 10 .

[0099] In one possible implementation, the operating button 18 may be located on the upper side, upper side, left side or right side of the display panel 11. The operating button 18 includes but is not limited to at least one of a button and a knob. The operating button 18 is used to interactively input the display panel 11. The operating button 18 also includes a power button, which is used to start and shut down the device body 10.

[0100] In a possible implementation, the first conductive part 12 may be a communication contact, or a contact pin, such as a pogo pin, so that the first conductive part 12 is connected to the second conductive part 21 of the test head body 20 to transmit signals.

[0101] In one possible implementation, a first snap-fitting portion 14 is provided on the side wall of the mounting cavity 13, and a second snap-fitting portion 23 is provided on the outer wall of the test head body 20. The first snap-fitting portion 14 and the second snap-fitting portion 23 are snap-fitted and connected to each other; one of the first snap-fitting portion 14 and the second snap-fitting portion 23 is an elastic snap buckle, and the other is a slot.

[0102] There may be two second engaging portions 23, and the two second engaging portions 23 are respectively located on two opposite outer walls of the test head body 20. The position of the first engaging portion 14 corresponds to the position of the second engaging portion 23.

[0103] In this embodiment, the first clamping portion 14 is a clamping slot, and the second clamping portion 23 is an elastic clamping buckle. When the elastic clamping buckle undergoes elastic deformation, it is clamped into the clamping slot, and after being clamped into the clamping slot, the deformation is restored, so that the connecting portion 24 is stably clamped in the mounting cavity 13, ensuring a stable connection between the equipment body 10 and the test head body 20.

[0104] Of course, in other embodiments, the first engaging portion 14 may be an elastic buckle and the second engaging portion 23 may be a slot. The first engaging portion 14 and the second engaging portion 23 may be engaged with each other to improve the stability of the connection between the device body 10 and the test head body 20.

[0105] In an embodiment of the present application that is not shown in the figure, a first magnetic member is provided in the installation cavity 13, and a second magnetic member is provided in the connecting portion 24. The second magnetic member corresponds to the position of the first magnetic member, and the second magnetic member and the first magnetic member are magnetically attracted to each other. With such a structure, after the test head body 20 is connected to the installation cavity 13, the second magnetic member and the first magnetic member are magnetically attracted to each other, and under the action of magnetic attraction, the test head body 20 and the installation cavity 13 are prevented from being separated from each other, which can improve the stability of the connection between the device body 10 and the test head body 20. After the device body 10 and the test head body 20 are connected, the second conductive portion 21 contacts the first conductive portion 12 correspondingly, and conductive communication is achieved.

[0106] In a possible implementation, the first magnetic member and the second magnetic member are both magnets.

[0107] In other possible implementations, the first magnetic member may be a magnet, and the second magnetic member may be an iron sheet or an alloy sheet containing metallic iron. Alternatively, the second magnetic member may be a magnet, and the first magnetic member may be an iron sheet or an alloy sheet containing metallic iron.

[0108] In one possible implementation, reference Figure 1 and Figure 2 As shown, an elastic member 30 is disposed in the installation cavity 13, and two ends of the elastic member 30 are respectively abutted between the connecting portion 24 and the inner wall of the installation cavity 13. The elastic member 30 is provided to facilitate the connection portion 24 to be removed from the installation cavity 13, thereby improving the convenience of disassembly.

[0109] In a possible implementation, the elastic member 30 may be a compression spring, and the force direction of the elastic member 30 is along the removal direction of the test head body 20 . To prevent the elastic member 30 from falling out, one end of the elastic member 30 is fixed to the inner wall surface of the installation cavity 13 .

[0110] After the test head body 20 and the device body 10 are connected to each other, the connecting portion 24 squeezes the elastic member 30 so that the elastic member 30 is compressed to store force. Since the side wall of the mounting cavity 13 is provided with a first clamping portion 14 and the outer wall of the connecting portion 24 is provided with a second clamping portion 23, the test head body 20 and the device body 10 are clamped together under the mutual clamping action of the first clamping portion 14 and the second clamping portion 23, which can prevent the test head body 20 and the device body 10 from being separated from each other, and the elastic member 30 maintains a compressed state. At this time, when the first conductive portion 12 is a spring needle, the first conductive portion 12 and the elastic member 30 are both squeezed to generate a double thrust.

[0111] When the test head body 20 needs to be disassembled, the elastic buckles in the first clamping part 14 and the second clamping part 23 can be manually pressed to separate the first clamping part 14 and the second clamping part 23 from each other. Under the elastic force of the elastic member 30, the connecting part 24 can be easily removed from the mounting cavity 13 without any effort, and the test head body 20 and the device body 10 can be separated from each other.

[0112] In an embodiment of the present application not shown in the figure, a third positioning part is further provided in the installation cavity 13, and a fourth positioning part is provided in the connecting part 24, and the third positioning part and the fourth positioning part cooperate with each other. The third positioning part can be a convex column and the fourth positioning part can be a groove; or the third positioning part can be a groove and the fourth positioning part can be a convex column. By correspondingly extending the convex column into the groove, the accuracy of the corresponding contact between the second conductive part 21 and the first conductive part 12 is improved, and the problem of misalignment and affecting the communication stability is prevented.

[0113] In one possible implementation, reference Figure 1 and Figure 2 As shown, the inner and outer walls of the installation cavity 13 are provided with assembly grooves 131, and there is a gap between the assembly grooves 131 and the connecting portion 24. The purpose is to reduce the contact area between the connecting portion 24 and the inner wall of the installation cavity 13, thereby reducing the friction force and making the installation and removal of the test head body 20 smoother.

[0114] This is because the first conductive part 12 must be aligned with the second conductive part 21 to ensure contact, so when the test head body 20 is installed in the device body 10, the gap between the connecting part 24 and the inner wall of the installation cavity 13 needs to be smaller, which will cause the friction force of plugging and unplugging the test head body 20 to be larger, making it more difficult to remove the test head body 20. In this embodiment, by providing the assembly groove 131, the contact area between the connecting part 24 and the inner wall of the installation cavity 13 can be reduced, making it easier to plug and unplug the test head body 20.

[0115] In one possible implementation, reference Figure 2 As shown, the inner wall of the mounting cavity 13 is provided with a first guide portion 15, and the outer wall of the connecting portion 24 is provided with a second guide portion 25, and the second guide portion 25 corresponds to the position of the first guide portion 15; one of the first guide portion 15 and the second guide portion 25 is a guide groove, and the other of the first guide portion 15 and the second guide portion 25 is a guide protrusion, and the guide protrusion is slidably matched with the guide groove.

[0116] In a possible implementation, the first guide portion 15 may be a guide groove, and the second guide portion 25 may be a guide protrusion; or the second guide portion 25 may be a guide groove, and the first guide portion 15 may be a guide protrusion. The guide protrusion and the guide groove slide together to guide the test head body 20 when it is installed in the device body 10, which helps prevent the test head body 20 from being deflected or stuck. In addition, if the second guide portion 25 is not aligned with the first guide portion 15 during installation, the connecting portion 24 will not be installed in the installation cavity 13, which can prevent the test head body 20 from being installed upside down, thus playing a fool-proof role.

[0117] The guide groove extends along the plugging and unplugging direction of the test head body 20 . The cross section of the guide groove may be rectangular, semicircular, etc. The cross section of the guide protrusion is consistent with that of the guide groove, which is beneficial to improving the guiding effect.

[0118] In one possible implementation, reference Figure 3 and Figure 4 As shown, a handheld reading and writing device provided by an embodiment of the present invention also includes a first protective cover 40, and a first protective cavity is opened in the first protective cover 40; when the test head body 20 and the device body 10 are connected to each other, the test head body 20 is located in the first protective cavity, and the first protective cavity is connected to the device body 10.

[0119] The first protective cover 40 is mainly used to protect the test needle 22 of the test head body 20. When the test head body 20 and the device body 10 are connected to each other, the test head body 20 can be covered in the first protective cavity by connecting the opening end of the first protective cavity to the device body 10, thereby achieving a better effect of protecting the test head body 20.

[0120] In a possible implementation, the first protective cover 40 may be connected to the device body 10 or the test head body 20 by snapping. The device body 10 is provided with a mounting buckle 19, which is used to snap-fit ​​with the inner wall of the first protective cover 40. For example, the mounting buckle 19 is provided on the surface of the device body 10, and a concave point is provided on the inner wall of the first protective cavity. By snapping the mounting buckle 19 into the concave point, the mounting buckle 19 is snap-fitted with the inner wall of the first protective cover 40, thereby improving the clamping effect of the first protective cover 40 after being fixed, and preventing the first protective cover 40 from loosening.

[0121] In a possible implementation, an outer convex groove 41 is provided at the open end of the first protective cavity, and the outer convex groove 41 is used to accommodate the elastic buckles in the first clamping portion 14 and the second clamping portion 23 .

[0122] In one possible implementation, reference Figure 5As shown, a handheld reading and writing device provided by an embodiment of the present invention further includes a second protective cover 50, and a receiving cavity 51 is formed between the second protective cover 50 and the first protective cover 40; when the test head body 20 and the device body 10 are separated from each other, the test head body 20 is arranged in the receiving cavity 51. Through the cooperation between the first protective cover 40 and the second protective cover 50, the test head body 20 is protected, and the first protective cover 40 achieves a dual-purpose effect.

[0123] In one possible implementation, reference Figure 2 and Figure 5 As shown, the inner wall of the second protective cover 50 is further provided with a third guide portion 53, the position of the third guide portion 53 corresponds to the position of the second guide portion 25 provided on the outer wall of the connecting portion 24, and the third guide portion 53 and the second guide portion 25 are slidably matched; one of the third guide portion 53 and the second guide portion 25 is a sliding groove, and the other is a sliding protrusion. The third guide portion 53 and the second guide portion 25 are slidably matched, which plays a role in preventing the second protective cover 50 from being deflected or installed upside down, and has a fool-proof effect.

[0124] In a possible implementation, one of the third guide portion 53 and the second guide portion 25 is a slide groove, and the other is a sliding protrusion. For example, the third guide portion 53 may be a slide groove, and the second guide portion 25 may be a sliding protrusion; or the third guide portion 53 may be a sliding protrusion, and the second guide portion 25 may be a slide groove. The extension direction of the slide groove is consistent with the installation direction of the second protective cover 50, and the sliding protrusion slides along the slide groove, which plays a guiding role in the installation and removal of the second protective cover 50.

[0125] In one possible implementation, reference Figure 2 and Figure 5 As shown, the side wall of the second protective cover 50 is provided with a fitting groove 52 and a fitting buckle 54. When the test head body 20 and the device body 10 are separated from each other, the second engaging portion 23 provided on the outer wall of the test head body 20 extends to the outside of the first protective cover 40 through the fitting groove 52, and the second engaging portion 23 and the fitting groove 52 are mutually engaged, and the fitting buckle 54 is mutually engaged with the inner wall of the first protective cover 40. Thus, a stable fitting connection effect between the first protective cover 40 and the second protective cover 50 is ensured, and the first protective cover 40 and the second protective cover 50 are prevented from falling off from the test head body 20.

[0126] In this example, the second engaging portion 23 is an elastic buckle, and the fitting groove 52 is a slot that penetrates the side wall of the second protective sleeve 50. The inner wall of the first protective sleeve 40 is provided with a recessed portion that matches the shape of the fitting buckle 54, and the fitting buckle 54 is embedded in the recessed portion, which can improve the stability of the connection between the first protective sleeve 40 and the second protective sleeve 50.

[0127] When the test head body 20 and the device body 10 are separated from each other, the test head body 20 is placed in the second protective cover 50, and the second clamping parts 23 on both sides of the test head body 20 pass through the fitting grooves 52 and are clamped and fixed, so that the second protective cover 50 is fixed relative to the test head body 20, and then the second protective cover 50 is fitted with the first protective cover 40. Under the action of the fitting buckle 54, a stable fitting connection effect between the first protective cover 40 and the second protective cover 50 is achieved to protect the test head body 20. At this time, the second clamping parts 23 on both sides of the test head body 20 are accommodated in the outer convex grooves 41 of the first protective cover 40, forming an all-round protection for the test head body 20, which can prevent dust from falling into the test head body 20 and facilitate the storage of the test head body 20.

[0128] In one possible implementation, the fitting groove 52 and the first locking portion 14 of the device body 10 have the same structure, and the fitting buckle 54 and the mounting buckle 19 provided on the device body 10 have the same structure, so as to improve the versatility of the first protective cover 40 and make it easier for the second protective cover 50 to be used in conjunction with the first protective cover 40.

[0129] In a possible implementation, in order to facilitate fixing the handheld reading and writing device in this example at the workstation, refer to Figure 6 and Figure 7 As shown, a handheld reading and writing device provided by an embodiment of the present invention also includes a card clamp 60, which includes a back plate 61 and a first clamping portion 62 and a second clamping portion 63 respectively connected to both ends of the back plate 61, a clamping cavity 64 is formed between the first clamping portion 62 and the second clamping portion 63, and the device body 10 is located in the clamping cavity 64. The first clamping portion 62 and the second clamping portion 63 are respectively clamped on the opposite two sides of the device body 10, so as to facilitate quick removal and insertion of the device body 10 without screwing, and is easy to use.

[0130] refer to Figure 6 and Figure 7 As shown, the first clamping portion 62, the second clamping portion 63 and the back plate 61 can be an integral structure connected in one piece. The first clamping portion 62 and the second clamping portion 63 can be structures formed at both ends of the back plate 61 and bent toward the direction of the device body 10 respectively. The structure is simple and easy to use.

[0131] In a possible implementation, the device body 10 is provided with a first positioning portion 16, and the back plate 61 is provided with a second positioning portion 65; one of the first positioning portion 16 and the second positioning portion 65 is a positioning groove, and the other is a positioning column, and the positioning column extends into the positioning groove.

[0132] In one possible implementation, the first positioning portion 16 can be a positioning groove, and the second positioning portion 65 can be a positioning column; or the first positioning portion 16 can be a positioning column, and the second positioning portion 65 can be a positioning groove; by extending the positioning column into the positioning groove, the positioning effect of the device body 10 in the clamp 60 is achieved.

[0133] A screw hole 611 is provided in the back panel 61. During installation, the clamp 60 is first fixed to the tooling equipment by passing the screws through the screw holes 611, and then the equipment body 10 is clamped in the clamping cavity 64. The first positioning portion 16 and the second positioning portion 65 cooperate with each other to achieve the clamping and fixing effect of the equipment body 10.

[0134] In a possible implementation, the test head body 20 includes a program burner. When the test head body 20 and the device body 10 are connected to each other, the device body 10 obtains the burning program carried by the program burner.

[0135] It is easy to understand that the program burner is also called a program editor, which usually includes a main control board, a storage device for storing the burning program, and an interface for writing the burning program, etc. When the test head body 20 and the device body 10 are connected to each other, the second conductive part 21 is electrically connected to the first conductive part 12, so that the test head body 20 and the device body 10 are electrically connected, and the device body 10 can obtain the burning program carried by the program burner.

[0136] With such a structure, the program burners of each test head body 20 can store different burning programs respectively. By replacing the test head body 20 connected to the device body 10, different burning programs can be selected. There is no need to store a large number of burning programs in the device body 10 for selection and use, which makes the device body 10 compact and versatile.

[0137] When a new chip or a new program needs to be burned, only the test head body 20 storing the updated burning program needs to be replaced, and there is no need to upgrade the device body 10, which is more convenient to use.

[0138] In one possible implementation, reference Figure 8 As shown, the device body 10 is also provided with a hanging rope slot 17, through which the device body 10 can be hung on the tooling equipment, and the device body 10 is also provided with an indicator light 110, which can be used to indicate the power state, the burning state, the alignment state of the chip to be burned, etc. The hanging rope slot 17 and the indicator light 110 can be located on the bottom surface of the device body 10.

[0139] The device body 10 is provided with a battery inside, and the device body 10 is also provided with a charging port 111 and a speaker hole 112. The charging port 111 is used to charge the battery of the device body 10, and the speaker hole 112 is used for sound prompts during human-computer interaction. The charging port 111 and the speaker hole 112 can be located on the bottom surface of the device body 10.

[0140] refer to Figure 1 and Fig. 9 As shown, the device body 10 also includes a test button 70, and the grip portion includes multiple finger contact positions, and the test button 70 is located at one of the finger contact positions; when the display panel 11 is facing the user, one of the multiple finger contact positions is facing the user, and the remaining finger contact positions are on the side of the device body 10.

[0141] In a possible implementation, the test button 70 includes a first burning button 71. The first burning button 71 and the display panel 11 are both arranged on the front surface of the device body 10. The display panel 11 is a human-machine interface surface. One of the multiple finger contact positions is a thumb contact position. The thumb contact position may be located on the front surface of the device body 10, that is, the thumb contact position faces the user. When the user is using the device, the user usually holds the device in such a way that the thumb is on the human-machine interface surface, facing the user, and the four fingers form a grip on the back, which is convenient for holding the handheld reading and writing device, and is also convenient for operating and viewing the display panel 11. At this time, the thumb is used to operate and select the operation button 18, and confirm the burning of the first burning button 71.

[0142] Through experiments, it was found that when the first burning button 71 and the display panel 11 are both set on the front surface of the device body 10, after the test needle 22 fixed on the test head body 20 is aimed at the contact of the chip to be burned, because the thumb does not press the first burning button 71 tightly at the beginning, the palm is not subjected to force, and the gripping force on it is suspended. Then, in the process of the thumb pressing the first burning button 71, the gripping force gradually increases, and there will be uncontrollable jitter, which may cause the test needle 22 to deviate from the chip contact, resulting in burning failure.

[0143] In a possible implementation, the plurality of finger contact positions include a thumb contact position, an index finger contact position, a middle finger contact position, a ring finger contact position, and a pinky finger contact position. The thumb contact position may also be located on the top surface of the device body 10, and the remaining four finger contact positions are located on the side surfaces of the device body 10.

[0144] In one possible implementation, reference Figure 1 and Fig. 9As shown, the test button 70 includes a second burning button 72, and the second burning button 72 is arranged on the side of the device body 10. The second burning button 72 can be at a position on the side of the device body 10 that contacts the remaining four fingers except the thumb. For example, the second burning button 72 is at a position on the side of the device body 10 that contacts the index finger, that is, the index finger contact position. Except for the palm, thumb, and index finger contact position of the user, the other three fingers can always be gripped before and after pressing the second burning button 72, and there is an encircling gripping force. After the index finger presses the second burning button 72, the jitter force is greatly reduced due to the existence of the gripping force, so that stable burning can be performed.

[0145] In an embodiment of the present application, the second burning button 72 can also be set at a position where the top surface of the device body 10 contacts the thumb, that is, the thumb contact position on the top surface of the device body 10. Before and after pressing the second burning button 72, the palm and the other four fingers form a gripping force, which can also reduce shaking force and ensure stable burning.

[0146] In a possible implementation, a handheld reading and writing device provided by an embodiment of the present invention further includes an external test head body, and the external test head body is connected to the test head body 20 or the device body 10 through a signal line.

[0147] In an embodiment not shown in the figure of the present application, the entire set of equipment main body 10 is fixed on the tooling equipment, but the test needle 22 needs to be led to the fixture on the other side. In this scheme, the external test head body is connected to the test head body 20 through a signal line, and the signal line is a data line. The external test head body can be embedded in the automation equipment to facilitate contact with the ink cartridge. The test head body 20 also includes an expansion interface, which is connected to a separate external test head body through a data line, which is more convenient to use.

[0148] In an embodiment not shown in the figure of the present application, the device body 10 also includes an expansion interface, and the external test head body is connected to the device body 10 via a data cable. The expansion interface of the device body 10 can select a power interface. When the data cable is connected to the external test head body through the power interface, signal transmission between the device body 10 and the external test head body is realized.

[0149] In the embodiment of the present application, the device body 10 is a main control device, and a printed circuit board is installed inside the device body 10, so that the device body 10 can realize functions such as human-machine interface display, software function control, test head body control, and network upgrade control.

[0150] Since the device body 10 is relatively small, and the test head body 20 is directly installed inside the device body 10, and the device body 10 has a built-in battery, no wire is required, and one-handed operation is possible, such as function selection, parameter setting, writing and testing chips, etc. In addition, the device body 10 and the test head body 20 do not need to be connected by wires, and are connected by POGOPIN, which is conducive to reducing signal interference.

[0151] There are heat dissipation holes 113 on both sides of the device body 10, and convection wind can make the device body 10 dissipate heat faster.

[0152] Embodiment 2

[0153] The difference between the second embodiment and the first embodiment is that the test head body 20 is provided with a mounting cavity 13, and the device body 10 has a connection portion 24 that is plugged in and out of the mounting cavity 13. By directly plugging and unplugging the connection portion 24 in the mounting cavity 13, the device body 10 and the test head body 20 are connected as a whole, achieving a stable connection effect between the device body 10 and the test head body 20, and eliminating the need to use wires for signal transmission between the device body 10 and the test head body 20, which can effectively solve the signal interference problem caused by the line length.

[0154] The handheld reading and writing device provided by the present invention is convenient for a user to hold the holding portion with one hand so that the test needle 22 is aligned with the chip, and the hand holding the device body 10 can also operate the device body 10 at the same time.

[0155] In the description of the present invention, it is necessary to understand that the terms used such as “center”, “length”, “width”, “thickness”, “top”, “bottom”, “up”, “down”, “left”, “right”, “front”, “back”, “vertical”, “horizontal”, “inside”, “outside”, “axial”, “circumferential”, etc. to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred position or component must have a specific direction, a specific structure and operation, and therefore cannot be understood as limiting the present invention.

[0156] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0157] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected, electrically connected, or can communicate with each other; they can be directly connected, or indirectly connected through an intermediate medium, so that the internal communication of two elements or the interaction relationship between two elements can be achieved. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0158] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0159] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, 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 embodiments of the present invention.

Claims

1. A handheld reading and writing device, characterized in that: include: A device body (10), at least a portion of the device body (10) forms a grip portion, and the device body (10) comprises a display panel (11) and a first conductive portion (12); A test head body (20), wherein the test head body (20) is detachably connected to the device body (10), and the test head body (20) is provided with a second conductive part (21) and a test needle (22), wherein the second conductive part (21) and the test needle (22) are electrically connected, and when the test head body (20) and the device body (10) are connected to each other, the second conductive part (21) and the first conductive part (12) are electrically connected.

2. The handheld reading and writing device according to claim 1, characterized in that: One of the device body (10) and the test head body (20) is provided with a mounting cavity (13), and the other of the device body (10) and the test head body (20) has a connecting portion (24) that is pluggable and connected to the mounting cavity (13).

3. The handheld reading and writing device according to claim 2, characterized in that: The side wall of the installation cavity (13) is provided with a first clamping portion (14), and the outer wall of the test head body (20) is provided with a second clamping portion (23), and the first clamping portion (14) and the second clamping portion (23) are mutually clamped and connected; one of the first clamping portion (14) and the second clamping portion (23) is an elastic buckle, and the other of the first clamping portion (14) and the second clamping portion (23) is a clamping groove.

4. The handheld reading and writing device according to claim 2, characterized in that: A first magnetic component is arranged in the installation cavity (13), and a second magnetic component is arranged in the connecting portion (24); the second magnetic component corresponds to the position of the first magnetic component, and the second magnetic component and the first magnetic component are magnetically attracted to each other.

5. The handheld reading and writing device according to claim 2, characterized in that: An elastic member (30) is disposed in the installation cavity (13), and two ends of the elastic member (30) are respectively abutted between the connecting portion (24) and the inner wall of the installation cavity (13); and / or, An inner wall of the installation cavity (13) and / or an outer wall of the connecting portion (24) is provided with an assembly groove (131), and a gap is provided between the assembly groove (131) and the connecting portion (24); and / or, The inner wall of the installation cavity (13) is provided with a first guide portion (15), and the outer wall of the connecting portion (24) is provided with a second guide portion (25), the second guide portion (25) corresponds to the position of the first guide portion (15), one of the first guide portion (15) and the second guide portion (25) is a guide groove, and the other of the first guide portion (15) and the second guide portion (25) is a guide protrusion, and the guide protrusion is slidably matched with the guide groove.

6. The handheld reading and writing device according to claim 3, characterized in that: It also includes a first protective sleeve (40), wherein a first protective cavity is defined in the first protective sleeve (40); When the test head body (20) and the device body (10) are connected to each other, the test head body (20) is located in the first protective cavity, and the first protective cavity is connected to the device body (10); A mounting buckle (19) is provided on the device body (10), and the mounting buckle (19) is used to be engaged and connected with the inner wall of the first protective sleeve (40).

7. The handheld reading and writing device according to claim 6, characterized in that: The device further comprises a second protective sleeve (50), wherein a receiving cavity (51) is formed between the second protective sleeve (50) and the first protective sleeve (40); when the test head body (20) and the device body (10) are separated from each other, the test head body (20) is disposed in the receiving cavity (51).

8. The handheld reading and writing device according to claim 7, characterized in that: The side wall of the second protective sleeve (50) is provided with a sleeve groove (52) and a sleeve buckle (54); when the test head body (20) and the device body (10) are separated from each other, the second engaging portion (23) provided on the outer wall of the test head body (20) extends to the outside of the first protective sleeve (40) through the sleeve groove (52), and the second engaging portion (23) and the sleeve groove (52) are mutually engaged, and the sleeve buckle (54) and the inner wall of the first protective sleeve (40) are mutually engaged and connected; The fitting groove (52) and the first engaging portion (14) of the device body (10) have the same structure, and the fitting buckle (54) and the mounting buckle (19) provided on the device body (10) have the same structure.

9. The handheld reading and writing device according to any one of claims 1 to 5, characterized in that: The device also includes a clamp (60), wherein the clamp (60) includes a back plate (61) and a first clamping portion (62) and a second clamping portion (63) respectively connected to two ends of the back plate (61), wherein a clamping cavity (64) is formed between the first clamping portion (62) and the second clamping portion (63), wherein the device body (10) is located in the clamping cavity (64), and wherein the first clamping portion (62) and the second clamping portion (63) are respectively clamped on two opposite sides of the device body (10); The device body (10) is provided with a first positioning portion (16), and the back plate (61) is provided with a second positioning portion (65), one of the first positioning portion (16) and the second positioning portion (65) is a positioning groove, and the other is a positioning column, and the positioning column extends into the positioning groove.

10. The handheld reading and writing device according to any one of claims 1 to 8, characterized in that: The test head body (20) comprises a program burner, and when the test head body (20) and the device body (10) are connected to each other, the device body (10) obtains the burning program carried by the program burner.

11. The handheld reading and writing device according to any one of claims 1 to 8, characterized in that: The device body (10) further comprises a test button (70), the grip portion comprises a plurality of finger contact positions, and the test button (70) is located at one of the finger contact positions; When the display panel (11) faces the user, one of the plurality of finger contact positions faces the user, and the remaining finger contact positions are on the side of the device body (10).

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