Balanced detector
By manufacturing a balanced detector with a segmented housing cavity using an aluminum extrusion die, the problems of long processing cycle and high cost in the existing technology are solved, enabling rapid, mass production and simplified installation.
Patent Information
- Application Number
- CN202423323029.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing balanced detectors have long processing cycles and high production costs for their bottom shells, and the need for multiple fixings makes the processing complex.
The housing is manufactured using an aluminum extrusion die and an aluminum extrusion process. The inner cavity of the housing is divided into two independent compartments by a partition block. The power supply module and the optical signal module are inserted through slots. The end caps seal the compartments, simplifying the installation structure.
It shortened the manufacturing cycle of the casing, reduced manufacturing costs, improved production efficiency, and simplified the installation process.
Smart Images
Figure CN223756157U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of optical equipment, in particular to a balanced detector. BACKGROUND
[0002] Balanced detector is a kind of equipment for high-precision optical measurement and communication system, it works by detecting two optical signals simultaneously and outputting the difference between them. This way can effectively suppress common-mode noise and background light, improve signal-to-noise ratio (SNR), so as to realize more accurate signal detection.
[0003] The structure of the existing balanced detector includes bottom shell and cover plate, the cover plate is fixed on the bottom shell by screw, so that the bottom shell is buckled by the cover plate to form a relatively closed space. Power module, optical signal module and the like are installed in the closed space by bolt. In order to make the power module and the optical signal module be reliably installed and fixed, the bottom shell needs to be provided with the matching installation structure, and the installation structure is currently completed by CNC machining.
[0004] However, the bottom shell structure formed by CNC machining has the following disadvantages: the bottom shell is usually a cuboid thin shell structure, at least three sides of the bottom shell need to be clamped and fixed, so that the CNC machine can complete the processing of the bottom shell. Therefore, at least three times of position changing and fixing are needed for processing a single bottom shell, which leads to long production cycle and high production cost. Therefore, in order to reduce the production cost of the shell structure, the balanced detector of the present application is proposed. UTILITY MODEL CONTENTS
[0005] The utility model aims at overcoming the deficiencies in the prior art, and provides a balanced detector which is simple to process, effectively shortens the processing period and reduces the processing cost.
[0006] The technical scheme adopted by the utility model is:
[0007] A balanced detector includes a power module and an optical signal module, and further includes:
[0008] A shell includes a shell body and two end covers. A partition block is arranged in the shell body along the length direction, and extends from one end of the shell body to the other end. The partition block is used to divide the inner cavity of the shell body into two independent sub-cavities. Each sub-cavity is provided with a slot on two opposite inner side walls, and the slot extends from one end of the shell body to the other end. The power module and the optical signal module are respectively inserted into the slots of the two sub-cavities. The two end covers are respectively buckled on the two ends of the shell body, and are used to seal the two sub-cavities. The two ends of the power module and the optical signal module are respectively abutted against the two end covers.
[0009] Optionally, two convex edges are arranged on one of the inner side walls of the sub-chamber, and the two convex edges extend from one end of the shell to the other end, so that the insertion slot is formed between the two convex edges.
[0010] Optionally, a first screw hole is formed in the outer side wall of the shell and penetrates the partition block.
[0011] Optionally, a second screw hole is formed in each end of the partition block, and a through hole is formed in the end cover and aligned with the second screw hole.
[0012] Optionally, an emptying groove is further formed in one end of the partition block, and the emptying groove is used for penetrating a conductor, so that the conductor is electrically connected with the power supply module and the optical signal module, respectively.
[0013] Optionally, an embedding groove is formed in each end of the shell, and the two end covers are respectively accommodated in the two embedding grooves.
[0014] Optionally, the shell further comprises two rubber sleeves, and an optical fiber is respectively inserted in each of the two rubber sleeves, two insertion holes are formed in one of the end covers, and the two rubber sleeves are respectively penetrated through the two insertion holes, so that the two optical fibers are connected with the optical signal module.
[0015] Optionally, the rubber sleeve comprises a rubber head and a rubber body, the rubber head is arranged at one end of the rubber body, the rubber body is penetrated through the insertion hole, and the rubber head is clamped at one end of the insertion hole close to the optical signal module.
[0016] Optionally, the diameter of the rubber head is greater than the inner diameter of the insertion hole, so that the insertion hole clamps the rubber head.
[0017] Optionally, an indicator lamp is arranged on the power supply module, and the indicator lamp is penetrated through the end cover to extend out of the sub-chamber.
[0018] The utility model has the advantages of:
[0019] This utility model discloses a balanced detector, comprising a power supply module, an optical signal module, and a housing. The housing includes a shell and two end caps. A partition is arranged along the length of the shell, extending from one end to the other, dividing the inner cavity of the shell into two independent chambers. Each chamber has a slot on its two opposing inner sidewalls, extending from one end to the other. The power supply module and the optical signal module are respectively inserted into the slots of the two chambers. The two end caps are respectively fastened to both ends of the shell, sealing the two chambers. Both ends of the power supply module and the optical signal module abut against the two end caps. Thus, compared to existing CNC machining methods, this application utilizes an aluminum extrusion die and aluminum extrusion process to quickly and mass-produce the housing, effectively shortening the manufacturing cycle and significantly reducing manufacturing costs. Furthermore, when the end caps are fixed to the ends of the housing with screws or other fasteners, both ends of the optical signal module / power supply module abut against the end caps. In this way, the power supply module and optical signal module do not need to be fixed to the housing with screws or other fasteners. They can simply be plugged into the slots, which simplifies the installation structure of the power supply module and optical signal module and effectively improves the production efficiency of the balanced detector. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of a balance detector according to one embodiment of the present invention;
[0021] Figure 2 for Figure 1 The diagram shows the exploded structure of the balanced detector.
[0022] Figure 3 This is a partial structural diagram of the outer shell according to one embodiment of the present invention;
[0023] Figure 4 for Figure 3 A schematic diagram of another angle of the partial structure of the outer shell shown.
[0024] Explanation of reference numerals in the attached figures:
[0025] 10. Balance detector; 100. Housing; 200. Power supply module; 300. Optical signal module; 110. Housing; 120. End cap; 130. Spacer; 111. Cavity; 112. Slot; 140. Raised ridge; 113. First screw hole; 131. Second screw hole; 121. Through hole; 132. Clearance groove; 114. Embedded groove; 150. Rubber sleeve; 160. Optical fiber; 122. Socket; 123. Gap; 151. Glue head; 152. Glue; 210. Indicator light. Detailed Implementation
[0026] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show the preferred embodiments of the utility model.
[0027] As shown in Figures 1 to 4 A balance detector 10, including shell 100, power supply module 200, optical signal module 300, shell 100 includes two end covers 120 and shell body 110, the shell body 110 is provided with the partition 130 along the length direction in, and the partition 130 extends from one end of the shell body 110 to the other end, the partition 130 is used to divide the inner chamber of the shell body 110 into two independent sub-chambers 111, and one insertion slot 112 is arranged on the two opposite inner side walls of each sub-chamber 111, and the insertion slot 112 extends from one end of the shell body 110 to the other end, the power supply module 200 and the optical signal module 300 are respectively inserted in the insertion slot 112 of two sub-chambers 111, and the two end covers 120 are respectively buckled on the two ends of the shell body 110, and the two end covers 120 are used to seal two sub-chambers 111, and the two ends of the power supply module 200 and the optical signal module 300 are respectively abutted on the two end covers 120.
[0028] It should be noted that the shell 110 is a tubular structure with two open ends and four closed sides, and a partition 130 is arranged in the inner cavity of the shell 110 along the length direction, which divides the inner cavity of the shell 110 into two independent sub-cavities 111, and the partition 130 extends from one end of the shell 110 to the other end. Further, in one of the sub-cavities 111, two insertion slots 112 are respectively arranged on two opposite inner side walls of the sub-cavity 111, and the two insertion slots 112 in the same sub-cavity 111 are aligned with each other. Each insertion slot 112 also extends from one end of the shell 110 to the other end along the length direction of the shell 110. In this way, the shell 110 is arranged in a structure extending along the length direction, and an aluminum extrusion die can be designed to be manufactured in batches by an aluminum extrusion process. The long strip structure manufactured by the aluminum extrusion process can be cut into a shell 110 with a specified length. Compared with the existing CNC machining method, the shell 110 can be quickly and mass-produced by the aluminum extrusion process using the aluminum extrusion die, thereby effectively shortening the manufacturing cycle of the shell 110 and greatly reducing the manufacturing cost. Two end covers 120 are respectively mounted on the two ends of the shell 110 to close the sub-cavities 111. The power supply module 200 is inserted into the two insertion slots 112 of one of the sub-cavities 111, and the optical signal module 300 is inserted into the two insertion slots 112 of the other sub-cavity 111. The power supply module 200 is used to step down the input voltage and then supply power to the optical signal module 300. The optical signal module 300 is used to process the optical signal to convert the optical signal into a suitable voltage signal. When the end cover 120 is fixed on the end of the shell 110 by screws or other fasteners, the two ends of the optical signal module 300 / power supply module 200 are respectively abutted against the end cover 120. In this way, the power supply module 200 and the optical signal module 300 do not need to be fixed on the shell 110 by screws or other fasteners, but only need to be inserted into the insertion slots 112, which simplifies the installation structure of the power supply module 200 and the optical signal module 300 and effectively improves the production efficiency of the balance detector 10.
[0029] As shown in Figures 2 to 4 In an embodiment, two ribs 140 are arranged on one of the inner side walls of the sub-cavity 111, and the two ribs 140 extend from one end of the shell 110 to the other end to form the insertion slot 112 between the two ribs 140.
[0030] It should be noted that the two ribs 140 are protruded on the inner side wall of the sub-cavity 111, so that the two ribs 140 form the insertion slot 112. In this way, the ribs 140 can be integrally formed on the inner side wall of the sub-cavity 111 by the aluminum extrusion process using the aluminum extrusion die, and the shell 110 of the application can be quickly and mass-produced by the aluminum extrusion process.
[0031] As shown in Figures 1 to 3As shown, in an embodiment, a first threaded hole 113 is formed on the outer side wall of the shell 110 and penetrates the partition block.
[0032] It should be noted that the first threaded hole 113 penetrates from one side of the shell 110 to the other side, and the first threaded hole 113 also penetrates the partition block 130. In this way, a screw that is matched with the first threaded hole 113 can be used to quickly screw and fix the shell 110, and a screw with a smaller inner diameter than the first threaded hole 113 can also be used to pass through the shell 110 to fix it. Moreover, the first threaded hole 113 is a structure that penetrates the two opposite sides of the shell 110, so that the shell 110 can be flexibly installed. In an embodiment, two first threaded holes 113 are formed, and a gap is provided between the two first threaded holes 113.
[0033] In an embodiment, the length of the shell 110 is 48.3 mm, the width is 38 mm, and the thickness is 25.8 mm, which is more compact than the existing structure, thereby facilitating installation.
[0034] As shown, Figures 1 to 4 in an embodiment, a second threaded hole 131 is formed on each end of the partition block 130, and a through hole 121 is formed on the end cover 120, and the through hole 121 is aligned with the second threaded hole 131.
[0035] It should be noted that after the screw passes through the through hole 121 and is screwed into the second threaded hole 131, the end cover 120 can be installed and fixed at the end of the shell 110. In this way, the end cover 120 is locked by the screw, so that the end cover 120 limits the power supply module 200 and the optical signal module 300 in the slot 112. Compared with the existing structure that needs to use screws to fix the power supply module 200 and the optical signal module 300 and also needs to use screws to fix the end cover 120, the present application eliminates the screws for fixing the power supply module 200 and the optical signal module 300, reduces the installation steps of the balance detector 10, and thereby improves the production efficiency. In an embodiment, two second threaded holes 131 are formed, and two through holes 121 are formed, and the two through holes 121 are respectively aligned with the two second threaded holes 131. In this way, the end cover 120 and the shell 110 can be reliably fixed.
[0036] As shown, Figure 3 in an embodiment, an empty slot 132 is also formed on one end of the partition block 130, and the empty slot 132 is used to pass through a conductor to electrically connect the conductor with the power supply module 200 and the optical signal module 300. For example, the conductor can be a wire or a pin. In this way, the power supply module 200 can supply power to the optical signal module 300 through the conductor. It should be noted that the power supply module 200 and the optical signal module 300 are respectively located in two independent cavities 111, and are separated by the partition block 130, which can effectively avoid signal interference between them.
[0037] As Figures 1 to 3 shown in the drawings, in an embodiment, two slots 114 are formed on the two ends of the shell 110 respectively, and two end covers 120 are respectively accommodated in the two slots 114.
[0038] It should be noted that the depth of the slot 114 is the same as the thickness of the end cover 120, so that the end cover 120 is embedded in the slot 114, and the end cover 120 and the end of the shell 110 form a flat structure, so that the overall balance detector 10 remains flat and compact.
[0039] As Figure 2 shown in the drawings, in an embodiment, the shell 100 further comprises two rubber sleeves 150, and two optical fibers 160 are respectively inserted in the two rubber sleeves 150. One of the end covers 120 is provided with two insertion holes 122, and the two rubber sleeves 150 are respectively inserted through the two insertion holes 122, so that the two optical fibers 160 are connected with the optical signal module 300.
[0040] It should be noted that the above structure is provided to stably connect the optical fiber 160 with the optical signal module 300. Specifically, two insertion holes 122 are formed on the end cover 120 through which the optical fiber 160 is introduced into the optical signal module 300. The rubber sleeve 150 is fixed to one end of the optical fiber 160, and the rubber sleeve 150 is inserted through the insertion hole 122, so that the insertion hole 122 clamps the rubber sleeve 150 close to the optical signal module 300, thereby reliably connecting the optical fiber 160 with the optical signal module 300. In an embodiment, the end cover 120 is further provided with a gap 123 communicating with the insertion hole 122, so that the optical fiber 160 can enter the insertion hole 122 through the gap 123, thereby reliably clamping the rubber sleeve 150 in the insertion hole 122.
[0041] As Figure 1 and Figure 2 shown in the drawings, in an embodiment, the rubber sleeve 150 comprises a rubber head 151 and a rubber body 152, the rubber head 151 is arranged at one end of the rubber body 152, the rubber body 152 is inserted through the insertion hole 122, and the rubber head 151 is clamped at one end of the insertion hole 122 close to the optical signal module 300.
[0042] It should be noted that the rubber body 152 and the rubber head 151 are integrally formed of plastic, and in an embodiment, the diameter of the rubber head 151 is greater than the inner diameter of the insertion hole 122, so that the insertion hole 122 clamps the rubber head 151. In this way, after the end cover 120 is fixed on the shell 110, the optical fiber 160 can be reliably connected with the optical signal module 300, the installation structure of the optical fiber 160 is simplified, and the production and assembly efficiency of the balance detector 10 is improved.
[0043] As Figure 1 and Figure 2As shown, in an embodiment, the power supply module 200 is provided with an indicator lamp 210, the indicator lamp 210 is arranged through the end cover 120 to extend from the cavity 111. In this way, the indicator lamp 210 is on or off to indicate whether the power supply module 200 is in normal working state.
[0044] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the application patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the application patent should be subject to the appended claims.
Claims
1. A balanced probe comprising a power module and an optical signal module, characterized in that, Also include: The shell includes a shell and two end caps, the shell is provided with a partition along the length direction, and the partition extends from one end of the shell to the other end, the partition is used to divide the inner cavity of the shell into two independent sub-cavities, each of the two opposite inner side walls of each sub-cavity is provided with a slot, and the slot extends from one end of the shell to the other end, the power supply module and the optical signal module are respectively inserted into the slots of the two sub-cavities, and the two end caps are respectively buckled on the two ends of the shell, the two end caps are used to seal the two sub-cavities, and the two ends of the power supply module and the optical signal module are respectively abutted on the two end caps.
2. The balanced probe of claim 1, wherein, One of the inner side walls of the sub-cavity is provided with two convex edges, and the two convex edges extend from one end of the shell to the other end, so that the slot is formed between the two convex edges.
3. The balanced probe of claim 1, wherein, A first screw hole is formed in the outer side wall of the shell and penetrates the partition.
4. The balanced probe of claim 1, wherein, Second screw holes are formed in the two ends of the partition, and a through hole is formed in the end cap and aligned with the second screw hole.
5. The balanced probe of claim 4, wherein, An empty slot is also formed in one end of the partition, and the conductor is arranged in the empty slot, so that the conductor is electrically connected with the power supply module and the optical signal module.
6. The balanced probe of claim 1, wherein, An embedding groove is formed in each end of the shell, and the two end caps are respectively accommodated in the two embedding grooves.
7. The balanced probe of claim 1, wherein, The shell further includes two rubber sleeves, and an optical fiber is respectively inserted into each of the two rubber sleeves.
8. The balanced probe of claim 7, wherein, The rubber sleeve includes a rubber head and a rubber body, the rubber head is arranged at one end of the rubber body, the rubber body penetrates the insertion hole, and the rubber head is clamped at one end of the insertion hole close to the optical signal module.
9. The balanced probe of claim 8, wherein, The diameter of the rubber head is greater than the inner diameter of the insertion hole, so that the insertion hole clamps the rubber head.
10. The balanced probe of claim 1, wherein, An indicating lamp is arranged on the power supply module, and the indicating lamp penetrates the end cap to extend out of the sub-cavity.