CN204305206U - Radiofrequency signal Isolation protector - Google Patents
Radiofrequency signal Isolation protector Download PDFInfo
- Publication number
- CN204305206U CN204305206U CN201520005176.6U CN201520005176U CN204305206U CN 204305206 U CN204305206 U CN 204305206U CN 201520005176 U CN201520005176 U CN 201520005176U CN 204305206 U CN204305206 U CN 204305206U
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- Prior art keywords
- connector
- hole
- circuit board
- radiofrequency signal
- annular circuit
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Abstract
The utility model discloses a kind of radiofrequency signal Isolation protector, comprise the first connector and the second connector that are coaxial docking, the top of the second connector is protruded and is provided with contact feet, plastic partition off member is coaxially arranged with between first connector and the second connector, plastic partition off member offers through hole, annular circuit board is coaxially arranged with between plastic partition off member and the first connector, the front of annular circuit board is arranged at intervals with contact point and patch capacitor, contact feet is conflicted with contact point through after through hole, the back side of annular circuit board is provided with contact surface, one end of patch capacitor is connected with the first connector by contact surface, the other end of patch capacitor is connected with the second connector by contact point, its cost is low, antijamming capability is strong, reliability is high.
Description
Technical field
The utility model relates to the isolation of signal ground DC level between cable TV terminal device and cable television network system, particularly relates to the radiofrequency signal Isolation protector of a kind of cable TV terminal device (equipment such as television set and cable set top box).
Background technology
Along with the fast development of cable TV network, cable tv broadcast enters huge numbers of families, but there is potential difference in the ground connection of cable TV network and cable TV terminal device, if cable TV network is directly connected with cable TV terminal device, electric current will flow to electronegative potential point from high potential point, interference is produced to the audio frequency and video of terminal device, even punctures the chip of terminal device, serious cause terminal device spontaneous combustion, the harm such as on fire.
Utility model content
The purpose of this utility model is to propose a kind of radiofrequency signal Isolation protector, and its cost is low, antijamming capability is strong, reliability is high.
For reaching this object, the utility model by the following technical solutions:
A kind of radiofrequency signal Isolation protector, comprise the first connector and the second connector that are coaxial docking, the top of described second connector is protruded and is provided with contact feet, plastic partition off member is coaxially arranged with between described first connector and described second connector, described plastic partition off member offers through hole, annular circuit board is coaxially arranged with between described plastic partition off member and described first connector, the front of described annular circuit board is arranged at intervals with contact point and patch capacitor, described contact feet is conflicted with described contact point through after described through hole, the back side of described annular circuit board is provided with contact surface, one end of described patch capacitor is connected with described first connector by described contact surface, the other end of described patch capacitor is connected with described second connector by described contact point.
Wherein, the front of described annular circuit board is arranged at intervals with multiple patch capacitor of annular arrangement and multiple contact point, described plastic partition off member offers multiple through holes of annular arrangement, the multiple contact feets being provided with annular arrangement are protruded on the top of described second connector, and the identical and one_to_one corresponding of the quantity of described patch capacitor, described contact point, described contact feet and described through hole.
Wherein, described contact feet is and the integrated projection of described second connector, or
Described contact feet is the elastic piece structure removably connected with described second connector, described elastic piece structure comprises the outwardly directed straight flange of axis direction along described second connector, and the top of described straight flange is provided with flexible the first folding flanging and the second flanging.
Wherein, the bottom of described elastic piece structure is provided with the base of the annular that can match with the top of described second connector, and wherein, multiple described elastic piece structure is by described straight flange annular array and be fixed on described base.
Wherein, described patch capacitor is arranged radially in the front of described annular circuit board, and the center of described annular circuit board offers the 4th hole, and the sidewall in described 4th hole is provided with the connecting portion of the one end connecting described contact surface and described patch capacitor.
Wherein, the inside of described second connector offers the first hole, described plastic partition off member comprises the first cylinder, the top of described first cylinder is connected with the second cylinder that diameter is greater than described first cylinder, the end face of described second cylinder offers accommodating cavity, the bottom surface of described accommodating cavity offers described through hole, described first cylinder stretches in described first hole, the bottom surface of described second cylinder and the top of described second connector offset, described annular circuit board be located in described accommodating cavity, and make described annular circuit board just facing to described second connector, conflict through described through hole and described contact point to make described contact feet.
Wherein, the inner side in described first hole is provided with the first flat horizontal surface, and the arranged outside of described first cylinder has the second flat horizontal surface, and described second flat horizontal surface coordinates with described first flat horizontal surface; The inner side of described accommodating cavity is provided with the 3rd flat horizontal surface, and the sidepiece of described annular circuit board offers the 4th flat horizontal surface, and described 4th flat horizontal surface coordinates with described 3rd flat horizontal surface.
Wherein, described first cylinder offers the second hole be communicated with described accommodating cavity, the bottom surface of the epimere of described first connector is on the contact surface being located at described annular circuit board, and the hypomere of described first connector stretches into described second hole and arranges behind described 4th hole.
Wherein, the inside of described first connector is coaxially arranged with core pin plastic sheath, the bottom in described second hole offers the 3rd straight-through hole, and the inside of described core pin plastic sheath is provided with core pin, and the bottom of described core pin is arranged through stretching out described second connector behind described 3rd hole.
Wherein, described first connector, described plastic partition off member, described second connector are also closely buckled together mutually by pressing equipment punching press.
The beneficial effects of the utility model are:
Radiofrequency signal Isolation protector of the present utility model, by arrange contact feet through after through hole with contact point conflict formation second connector of annular circuit board and the electrical connection of annular circuit board, recycling contact point is electrically connected with one end of the patch capacitor on annular circuit board, the other end of patch capacitor is then conflicted by the contact surface at the back side of annular circuit board and the first connector, thus form the electrical connection of patch capacitor and the first connector, therefore, this radiofrequency signal Isolation protector is installed additional between cable television network system signal output terminal and the signal input terminal of cable TV terminal device, isolate both ground and the unimpeded of inhibit signal connection, cable TV terminal device is protected accordingly, in addition, it is owing to being arranged on annular circuit board by patch capacitor, and make annular circuit board between plastic partition off member and the first connector, by contact point with indirect connection of contact feet realize being electrically connected, thus instead of in prior art and directly patch capacitor is vertically arranged the mode being used for being connected with the first connector, this will reduce difficulty of processing, cut down finished cost, and antijamming capability is strong, reliability.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of radiofrequency signal Isolation protector of the present utility model.
Fig. 2 is the main TV structure schematic diagram of a kind of embodiment of the second connector in Fig. 1.
Fig. 3 is the cross-sectional view of the second connector at A-A place in Fig. 2.
Fig. 4 is the main TV structure schematic diagram of the another kind of embodiment of the second connector in Fig. 2.
Fig. 5 is the left TV structure schematic diagram of the contact feet in Fig. 4.
Fig. 6 is the perspective view of the plastic partition off member in Fig. 1.
Fig. 7 is the perspective view of the plastic partition off member in Fig. 6.
Fig. 8 is the main TV structure schematic diagram of the plastic partition off member in Fig. 6.
Fig. 9 is the main TV structure schematic diagram of the annular circuit board in Fig. 1.
In figure: 1-first connector; 2-second connector; 3-plastic partition off member; 4-core pin plastic sheath; 5-core pin; 6-annular circuit board; 7-patch capacitor; 21-first flat horizontal surface; 22-contact feet; 23-first hole; 31-first cylinder; 31-second cylinder; 33-second hole; 34-the 3rd hole; 311-second flat horizontal surface; 321-accommodating cavity; 322-through hole; 323-the 3rd flat horizontal surface; 61-the 4th hole; 62-contact point; 63-the 4th flat horizontal surface; 221-straight flange; 222-first flanging; 223-second flanging; 224-base.
Detailed description of the invention
The technical solution of the utility model is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
As shown in Figure 1 to 9, a kind of radiofrequency signal Isolation protector, comprise the first connector 1 and the second connector 2 be coaxial docking, the top of the second connector 2 is protruded and is provided with contact feet 22, plastic partition off member 3 is coaxially arranged with between first connector 1 and the second connector 2, plastic partition off member 3 offers through hole 322, annular circuit board 6 is coaxially arranged with between plastic partition off member 3 and the first connector 1, the front of annular circuit board 6 is arranged at intervals with contact point 62 and patch capacitor 7, contact feet 22 through after through hole 322 and contact point 62 conflict, the back side of annular circuit board 6 is provided with contact surface, one end of patch capacitor 7 is connected with the first connector 1 by contact surface, the other end of patch capacitor 7 is connected with the second connector 2 by contact point 62.
Radiofrequency signal Isolation protector of the present utility model, by arrange contact feet through after through hole with contact point conflict formation second connector of annular circuit board and the electrical connection of annular circuit board, recycling contact point is electrically connected with one end of the patch capacitor on annular circuit board, the other end of patch capacitor is then conflicted by the contact surface at the back side of annular circuit board and the first connector, thus form the electrical connection of patch capacitor and the first connector, therefore, this radiofrequency signal Isolation protector is installed additional between cable television network system signal output terminal and the signal input terminal of cable TV terminal device, isolate both ground and the unimpeded of inhibit signal connection, cable TV terminal device is protected accordingly, in addition, it is owing to being arranged on annular circuit board by patch capacitor, and make annular circuit board between plastic partition off member and the first connector, by contact point with indirect connection of contact feet realize being electrically connected, thus instead of in prior art and directly patch capacitor is vertically arranged the mode being used for being connected with the first connector, this will reduce difficulty of processing, cut down finished cost, and antijamming capability is strong, reliability.
Wherein, the front of annular circuit board 6 is arranged at intervals with multiple patch capacitors 7 and multiple contact point 62 of annular arrangement, plastic partition off member 3 offers multiple through holes 322 of annular arrangement, the multiple contact feets 22 being provided with annular arrangement are protruded on the top of the second connector 2, and the identical and one_to_one corresponding of the quantity of patch capacitor 7, contact point 62, contact feet 22 and through hole 322.Preferably, the quantity of patch capacitor 7, contact point 62, contact feet 22 and through hole 322 is 1 ~ 20.
Preferred as one, as shown in Figure 2 and Figure 3, contact feet 22 is and the integrated projection of the second connector 2, this structure is simple, and contact feet 22 is one-body molded with the second connector 2, and processing and fabricating is facilitated, cost is low, further, it is interference fit that the end face of its projection needs with contact point 62, so just can ensure the electrical connection of the second connector 2 and annular circuit board 6 better.
Preferred as another kind, as shown in Figure 4, Figure 5, contact feet 22 is the elastic piece structure removably connected with the second connector 2, elastic piece structure comprises the outwardly directed straight flange 221 of axis direction along the second connector 2, and the top of straight flange 221 is provided with flexible the first folding flanging 222 and the second flanging 223.Wherein, the first flanging 222 and the second flanging 223 form the elastic construction with elasticity height jointly, when reality uses, can increase the combination of more first flanging 222 and the second flanging 223 according to the actual needs, to improve elasticity dynamics.In the present embodiment, the bottom of elastic piece structure is provided with the base 224 of the annular that can match with the top of the second connector 2, and wherein, multiple elastic piece structure is by straight flange 221 annular array and be fixed on base 224.During installation, because contact feet 22 all concentrates on base 224, directly base 224 can be fixed on the top of the second connector 2, this dismountable structure makes processing flexibly, if elastic piece structure is after Long-Time Service wearing and tearing, by more bringing realization, and then can increase the service life, ensureing connection reliability.
Patch capacitor 7 is arranged radially in the front of annular circuit board 6, and the sidewall that the center of annular circuit board 6 offers the 4th hole 61, hole the 61, four is provided with the connecting portion of the one end connecting contact surface and patch capacitor 7.The inside of the second connector 2 offers the first hole 23, plastic partition off member 3 comprises the first cylinder 31, the top of the first cylinder 31 is connected with the second cylinder 32 that diameter is greater than the first cylinder 31, the end face of the second cylinder 32 offers accommodating cavity 321, the bottom surface of accommodating cavity 321 offers through hole 322, first cylinder 31 stretches in the first hole 23, the bottom surface of the second cylinder 32 and the top of the second connector 2 offset, annular circuit board 6 be located in accommodating cavity 321, and make annular circuit board 6 just facing to the second connector 2, conflict through through hole 322 and contact point 62 to make contact feet 22.
Through hole in order to the contact feet with plastic partition off member 3 that make the second connector 2 aligns well and coordinates, the inner side in the first hole 23 is provided with the first flat horizontal surface 21, the arranged outside of the first cylinder 31 has the second flat horizontal surface 311, second flat horizontal surface 311 to coordinate with the first flat horizontal surface 21.Similarly, align well with the contact point of annular circuit board 6 to make the through hole of plastic partition off member 3, the inner side of accommodating cavity 321 is provided with the 3rd flat horizontal surface 323, and the sidepiece of annular circuit board 6 offers the 4th flat horizontal surface the 63, four flat horizontal surface 63 and coordinates with the 3rd flat horizontal surface 323.
First connector 1 and the second connector 2 can set according to actual use occasion.
Preferably, first connector 1 is according to the standard of coaxial cable F male, screw thread is designed with in the outside of epimere, second connector 2 is according to the standard of coaxial cable F female, screw thread is designed with in the inner side of the hypomere in the first hole 23, make thread forms, form F head connector, use that can be general on the set-top box; Wherein, the die cast metal that first connector 1 uses electric conductivity good forms, there is good electric conductivity and shielding properties, Main Function is connected with cable television network system, also can be connected with CATV terminal (because of the difference of environment for use, different method of attachment can be selected).The hypomere of the first connector 1 embeds in plastic partition off member 3.
Preferably, the first connector 1 can manufacture according to the size of international standard IEC male with external equipment (or cable) coupling part; Second connector 2 can manufacture according to the size of international standard IEC female with external equipment (or cable) coupling part; Make IEC head connector, use that can be general on TV; Wherein, the die cast metal that second connector 2 uses electric conductivity good forms, there is good electric conductivity and shielding properties, Main Function is connected with cable television network system, also can be connected with CATV terminal (because of the difference of environment for use, different method of attachment can be selected).Plastic partition off member 3 is embedded in inside the second connector 2.
Wherein, the first cylinder 31 offers the bottom surface of the epimere of the second hole 33, first connector 1 be communicated with accommodating cavity 321 on the contact surface being located at annular circuit board 6, and the hypomere of the first connector 1 stretches into the second hole 33 and arranges behind the 4th hole 61.
Wherein, the bottom that the inside of the first connector 1 is coaxially arranged with core pin plastic sheath 4, second hole 33 offers the 3rd straight-through hole 34, and the inside of core pin plastic sheath 4 is provided with core pin 5, and the bottom of core pin 5 is arranged through stretching out the second connector 2 behind the 3rd hole 34.
Wherein, the first connector 1, plastic partition off member 3, second connector 2 are also closely buckled together mutually by pressing equipment punching press.
Plastic partition off member 3 is between the first connector 1 and the second connector 2, plastic partition off member 3 has five effects, one has been the effect being fixedly connected with the first connector 1 and the second connector 2, pass through punching press, the first connector 1 and the second connector 2 by plastic partition off member linking together tightly, the first connector 1 and the mutually nested cooperation of the second connector 2; Two is the electric currents in the middle of isolation first connector 1 and the second connector 2, realizes the isolation of signal ground DC level between cable TV terminal device and cable television network system; Three one end being used to fixed core pin, and allow core pin pass from the 3rd hole 34; Four is place annular circuit board 6 by accommodating cavity.
Annular circuit board 6, for radio frequency signal ground return between conducting first connector 1 and the second connector 2, enables the radiofrequency signal of 5MHz-3GHZ pass through smoothly, isolates the DC current between them simultaneously.Multiple patch capacitor is welded in the front of annular circuit board 6, generally weld 4 patch capacitors, if considered from cost angle, a patch capacitor is installed, compares cost-saving, but radio-frequency performance and antijamming capability poor; Consider from the angle of radio-frequency performance, the patch capacitor radio-frequency performance of evenly installing quantity abundant is better, but can raise the cost, and the patch capacitor not having enough space too many; Proceed from reality, generally weld 4 patch capacitors more applicable, (annular circuit board as described below is the annular circuit board having installed 4 patch capacitors).The front of annular circuit board also has four contact points, one end of four contact points respectively with 4 patch capacitors is communicated with by the copper foil circuit of annular circuit board, four contact feets of four contact point again with the second connectors 2 contact, and reach patch capacitor one end on annular circuit board and are connected the effect of conducting with the second connector 2.The reverse side of annular circuit board is large-area conductive contact surfaces, and conductive contact surfaces is connected with the other end of 4 patch capacitors in front by the copper foil circuit of annular circuit board.Conductive contact surfaces again with the first connector 1 is connected, and reaches the patch capacitor other end on annular circuit board and is connected the effect of conducting with the first connector 1.
The Main Function of patch capacitor 7 is used to radio frequency signal ground return between conducting first connector 1 and the second connector 2, and it must be welded on above annular circuit board could realize above-mentioned functions.Use the electric capacity of several different capabilities and unlike material, to take into account low frequency and high frequency performance.Low capacity electric capacity has better high frequency performance, but capacitance is little adds low frequency insertion loss, coordinates can realize high frequency low frequency and take into account with large bulk capacitance.The capacity of patch capacitor is generally 100pF-1uF.
Core pin, as the primary path of radiofrequency signal, connects the heart yearn of coaxial cable between cable TV terminal device and cable television network system.Radiofrequency signal Isolation protector of the present utility model can be divided into single isolation radiofrequency signal Isolation protector and two isolation radiofrequency signal Isolation protector; The main distinction is core pin, and core pin is that metallic conductor directly connects cable TV terminal device and cable television network system, is single isolation radiofrequency signal Isolation protector; If added electric capacity in the middle of core pin, for isolating the DC current of cable TV terminal device and cable television network system, be two isolation radiofrequency signal Isolation protector.
Core pin plastic sheath is used to fixed core pin position and ensures that core pin can not occur the parts of short circuit with other metal parts.
The manufacturing process of radiofrequency signal Isolation protector of the present utility model is:
The first step: the punching press of plastic partition off member is embedded into inside the second connector 2.
Second step: put core pin into plastic partition off member, and the via hole passing plastic partition off member.
3rd step: core pin plastic sheath is enclosed within above core pin.
4th step: annular circuit board is placed in the accommodating cavity of plastic partition off member.
5th step: the first connector 1 punching press is embedded into plastic partition off member.
This radiofrequency signal Isolation protector multiple electric capacity (generally with 4 electric capacity) isolates the earth signal of cable TV terminal device and cable TV network, the signal frequency passed through, by 5MHZ to 3GHZ, has the features such as good antijamming capability than the Isolation protector of routine; In addition, it is low relative to using the Isolation protector cost compare of annular capacitor; Be eager to excel relative to the antijamming capability of the Isolation protector making shell of tinplate; Want reliable relative to by the method for metal spring leaf contact patch capacitor, the utility model does not need to use metal spring leaf, can reduce costs simultaneously, can improve again the reliability of product.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present utility model, and these modes all will fall within protection domain of the present utility model.
Claims (10)
1. a radiofrequency signal Isolation protector, comprise the first connector (1) and the second connector (2) that are coaxial docking, it is characterized in that, the top of described second connector (2) is protruded and is provided with contact feet (22), plastic partition off member (3) is coaxially arranged with between described first connector (1) and described second connector (2), described plastic partition off member (3) offers through hole (322), annular circuit board (6) is coaxially arranged with between described plastic partition off member (3) and described first connector (1), the front of described annular circuit board (6) is arranged at intervals with contact point (62) and patch capacitor (7), described contact feet (22) is conflicted with described contact point (62) afterwards through described through hole (322), the back side of described annular circuit board (6) is provided with contact surface, one end of described patch capacitor (7) is connected with described first connector (1) by described contact surface, the other end of described patch capacitor (7) is connected with described second connector (2) by described contact point (62).
2. radiofrequency signal Isolation protector according to claim 1, it is characterized in that, the front of described annular circuit board (6) is arranged at intervals with multiple patch capacitors (7) and multiple contact point (62) of annular arrangement, described plastic partition off member (3) offers multiple through holes (322) of annular arrangement, the multiple contact feets (22) being provided with annular arrangement are protruded on the top of described second connector (2), and described patch capacitor (7), described contact point (62), identical and the one_to_one corresponding of the quantity of described contact feet (22) and described through hole (322).
3. radiofrequency signal Isolation protector according to claim 1, is characterized in that, described contact feet (22) is and the integrated projection of described second connector (2), or
Described contact feet (22) is the elastic piece structure removably connected with described second connector (2), described elastic piece structure comprises the outwardly directed straight flange of axis direction (221) along described second connector (2), and the top of described straight flange (221) is provided with flexible folding the first flanging (222) and the second flanging (223).
4. radiofrequency signal Isolation protector according to claim 3; it is characterized in that; the bottom of described elastic piece structure is provided with the base (224) of the annular that can match with the top of described second connector (2); wherein, multiple described elastic piece structure to be fixed on described base (224) by described straight flange (221) annular array.
5. radiofrequency signal Isolation protector according to claim 1; it is characterized in that; described patch capacitor (7) is arranged radially in the front of described annular circuit board (6); and the center of described annular circuit board (6) offers the 4th hole (61), the sidewall in described 4th hole (61) is provided with the connecting portion of the one end connecting described contact surface and described patch capacitor (7).
6. radiofrequency signal Isolation protector according to claim 5, it is characterized in that, the inside of described second connector (2) offers the first hole (23), described plastic partition off member (3) comprises the first cylinder (31), the top of described first cylinder (31) is connected with the second cylinder (32) that diameter is greater than described first cylinder (31), the end face of described second cylinder (32) offers accommodating cavity (321), the bottom surface of described accommodating cavity (321) offers described through hole (322), described first cylinder (31) is stretched in described first hole (23), the bottom surface of described second cylinder (32) and the top of described second connector (2) offset, described annular circuit board (6) be located in described accommodating cavity (321), and make described annular circuit board (6) just facing to described second connector (2), conflict through described through hole (322) and described contact point (62) to make described contact feet (22).
7. radiofrequency signal Isolation protector according to claim 6, it is characterized in that, the inner side of described first hole (23) is provided with the first flat horizontal surface (21), the arranged outside of described first cylinder (31) has the second flat horizontal surface (311), and described second flat horizontal surface (311) coordinates with described first flat horizontal surface (21); The inner side of described accommodating cavity (321) is provided with the 3rd flat horizontal surface (323), the sidepiece of described annular circuit board (6) offers the 4th flat horizontal surface (63), and described 4th flat horizontal surface (63) coordinates with described 3rd flat horizontal surface (323).
8. radiofrequency signal Isolation protector according to claim 6; it is characterized in that; described first cylinder (31) offers the second hole (33) be communicated with described accommodating cavity (321); the bottom surface of the epimere of described first connector (1) is on the contact surface being located at described annular circuit board (6), and the hypomere of described first connector (1) stretches into the setting of described second hole (33) behind described 4th hole (61).
9. radiofrequency signal Isolation protector according to claim 8; it is characterized in that; the inside of described first connector (1) is coaxially arranged with core pin plastic sheath (4); the bottom of described second hole (33) offers the 3rd straight-through hole (34); the inside of described core pin plastic sheath (4) is provided with core pin (5), and the bottom of described core pin (5) is through stretching out the setting of described second connector (2) behind described 3rd hole (34).
10. the radiofrequency signal Isolation protector according to any one of claim 1 to 9; it is characterized in that, described first connector (1), described plastic partition off member (3), described second connector (2) are also closely buckled together mutually by pressing equipment punching press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005176.6U CN204305206U (en) | 2015-01-04 | 2015-01-04 | Radiofrequency signal Isolation protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005176.6U CN204305206U (en) | 2015-01-04 | 2015-01-04 | Radiofrequency signal Isolation protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204305206U true CN204305206U (en) | 2015-04-29 |
Family
ID=53110709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520005176.6U Expired - Fee Related CN204305206U (en) | 2015-01-04 | 2015-01-04 | Radiofrequency signal Isolation protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204305206U (en) |
-
2015
- 2015-01-04 CN CN201520005176.6U patent/CN204305206U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20210104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |